7 Best Competition Running Shoes in 2024

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7 Best Competition Running Shoes in 2024
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With speed written all over them, the best running shoes for racing are light, aggressive, and crazy responsive. With so many competition running shoes to choose from, it can be a challenge to pick the right pair - let alone the best pair. 

But don’t fret; we have tested competition running shoes one by one just to have the answer to which one is the best for you. We ran in them and we tested them in our lab. We also went down the rabbit hole explaining which features to look for in race shoes and what you should prioritise. 

Race shoes that truly impressed us and stood out from the rest are highlighted here as top picks. 

How we test running shoes

To ensure the objectivity of our reviews, we do the following:

  • Buy race shoes using our own money. Every cent invested comes from our pockets.
  • We hit the streets in these shoes and do test runs in them. We accumulate 30 to 50 miles in each pair before we log our observations.
  • Bring the shoes to our lab. We cut the race shoes in half and measure different parameters using our tools and equipment. We publish 20+ data points on each shoe, including their softness, breathability, stiffness, outsole thickness and hardness, weight, and so on.

 

Best competition running shoes overall

Nike Vaporfly 3
88
Great!

What makes it the best?

We flew to the finish line with this insanely responsive, lightweight, and surprisingly comfortable shoe. It has all the speed-enhancing features that justify its £250 price tag. With its unmatched energy and high-performance level, Vaporfly 3 works best for PR chasers — making it our ultimate pick for competition running. 

Our lab results speak for its speed yet our feet lived to tell the tale. Its Pebax foam felt incredibly springy and soft — like launching off a diveboard in every toeoff and landing home with its cosy platform. Our durometer confirms its plush touch, measuring 29.1% softer than average. 

This racer could keep up even if we pushed our paces to the limit. It performed best at faster speeds! Our 90º bend test confirmed this and showed it's 88.3% stiffer than average! Keeping each turnover effortless and efficient is the shoe’s carbon plate and light weight. At 6.7 oz (190g), it’s much lighter than the average racer (7.5 oz / 214g). 

Complementing the performance-driven midsole is a well-ventilated upper that scored 5/5 on our breathability test. Shoes rarely get a perfect score here! There’s no need to worry about hotspots or wet socks in this pair.

We discovered that VF3 performs best in longer distances (10K+). Because of its focus on adding comfort, it may lack the quick-release sensation that some 5K/10K runners are looking for.

Pros

  • Exceptionally breathable upper
  • Outstanding ZoomX cushioning
  • Superb choice from the mile to the marathon
  • Impressively low weight
  • Enhanced stability
  • Plush, cloud-like foam
  • Upgraded outsole for better grip

Cons

  • Uncomfortably large tongue
  • The heel is still too narrow
Full review of Nike Vaporfly 3

Best competition running shoes for marathon

Nike Alphafly 3
85
Good!

What makes it the best?

The third iteration of Alphafly is a super shoe marvel with its overwhelming energy return, cushioned platform, and unexpected stability. After hours in the lab and miles on foot, it's our top marathon/ultra-shoe, which provides heavenly comfort, extra support, and tonnes of energy for endurance runs. 

This racer comes to life and feels more natural at faster paces. Our cut-in-half shoe reveals the rigid FlyPlate and Air Pods integrated into the midsole. These provide a consistent stream of energy that shines in longer distances. Our 90° bend test reveals a solid 144.7% higher stiffness than average. 

Alphafly 3 features the dynamic ZoomX midsole that offers world-class responsiveness. What sets this shoe apart is its dual-density setup. Our durometer shows the top layer is 23.6% firmer than average to enhance stability and control, while the bottom layer is 23.3% softer than average for impact protection. Both elements work together to save our legs from fatigue, especially in the latter miles when extra support is needed.

Despite the sky-high stack, the shoe is surprisingly light (7.1 oz / 201g). What also amazed us was the immensely breathable Atomknit upper that assures we won't have hotspots or blisters.

The outsole may be less resistant to abrasions since the rubber is 1.3 mm thinner than average. We recommend saving this shoe for race days.

Pros

  • Remarkably lightweight despite its broad size
  • Best-in-class breathability
  • Excels in the marathon distance
  • Repositioned Air Pods offer a better ride than the v2
  • ZoomX foam delivers massive energy return
  • Aids in forward momentum, especially when legs begin to fatigue
  • Better than ever for 5K/10K racing
  • Finally smooth transitions!

Cons

  • Heel strikers might wear down the outsole quickly
  • The arch could still be a challenge for some
  • The sock-like tongue might not suit everyone
Full review of Nike Alphafly 3

Best competition running shoes for midfoot/forefoot strikers

What makes it the best?

Metaspeed Sky Paris helps us soar to the finish line with its superior combination of speed and comfort. It’s a breath of fresh air with limitless power and delightful cushioning. Among all our lab-tested competition shoes, ASICS Metaspeed Sky Paris tops the midfoot/forefoot strikers category.

The platform consists of a 39.1/ 32.6 mm stack that supports every landing gently. Meanwhile, the flat carbon plate nestled between two FF Turbo+ layers launches us with great magnitude every compression under our forefoot. Together with the moderate 6.5 mm drop, we've confirmed this shoe is designed for non-heel strikers.

Peak performance is a given with the one-of-a-kind midsole, and is further elevated with its remarkable lightness. At only 6.5 oz (183g), we gained significant weight savings vs. the average 9.4 oz (265g) running shoe.

Adding to its feathery feel is the wind beneath our feet, literally! With a perfect score on our breathability test, its MOTIONWRAP 2.0 mesh upper is well-ventilated. What’s even more impressive is its solid 4/5 toebox durability score because shoes usually tend to perform inversely on both lab tests.

Sky Paris lacks the stability that some racers require because of its high and soft midsole. Those in need of more support should search elsewhere.

Pros

  • Exceptionally lightweight design
  • World-class energy return
  • Versatile for distances from 5K to marathon
  • All-weather grippy outsole
  • Redesigned, improved upper
  • Incredibly cushioned
  • Perfect for midfoot and forefoot strikers
  • Fantastic durability

Cons

  • Narrow fit
  • Not suitable for heel strikers
  • Less stable than Sky+
Full review of ASICS Metaspeed Sky Paris

Best competition running shoes for heel strikers

What makes it the best?

Massive energy rebound, heavenly cushioning, and a refreshing feel—these are just some of the many qualities that make Saucony Endorphin Pro 4 the top competition shoe for heel-strikers. Our runs feel effortless and supported by the vibrant midsole that combines comfort and speed perfectly.

At 38.1 mm, the Endorphin Pro 4 provides supreme heel cushioning for any distance. Our cut-in-half shoe reveals two distinct foams: a plush 18.5 HA top layer for protection, and a firmer 22.0 HA bottom layer for stability, ensuring confident strides even as fatigue sets in.

Embedded in the soft and bouncy midsole is the super stiff carbon plate. Our flex test reveals it needs a force that’s 137.5% higher than average to bend to 90 degrees! This translated to insane responsiveness and the feeling of being propelled forward effortlessly.

Despite all the cushioning and support, EP4 remains a featherweight 7.8 oz (220g), 17.3% lighter than the average road running shoe. The ride feels like a breath of fresh air since the upper is extremely breezy. It showcased superior performance in our breathability tests, earning a well-deserved 5/5 score. We had no worries about hotspots and blisters and could purely focus on our performance.

Although this racer is very responsive, other elite counterparts may feel faster since they focus more on speed and performance than comfort.

Pros

  • Durable upper and outsole
  • Spacious upper fit
  • Enhanced midsole comfort
  • Great value at $225 for a supershoe
  • Versatile across all paces
  • Ideal for heel strikers
  • More stable than ever

Cons

  • Slightly heavier than v3
  • Less suited for forefoot strikers
  • Competitors may feel quicker
Full review of Saucony Endorphin Pro 4

Competition running shoes with the best stability

What makes it the best?

We experienced the best of both worlds in the AP3! This racer ticks the boxes of a supershoe with its lightning speed, comfy ride and airy nature. While its counterparts tend to be unsteady, it's the exact opposite because of its wide landing platform and balanced midsole. This makes it our top stability competition shoe.

Exceeding the standard racer, AP3 has a balanced cushion and a wider-than-average landing base in the forefoot - an additional 6.2 mm. This promotes stable landings for forefoot and midfoot strikers. Even when cornering at high speeds, we remain steady and in control.

It blends comfort and speed in perfect harmony through its mega-stack and rigid platform. The underfoot feels delightful and is dense enough so that we don’t sink into it. Our durometer confirms it’s 12.9% softer than average. Every stride feels powerful with its insane energy return. Our flex test validates this as AP3 ranks 49.5% more resistant than average. A higher resistance springs back up more power.

AP3 is a breath of fresh air. The breeze flows in and out freely and our breathability test confirms this with the highest rating. It’s only 7.7 oz (218g), as light as other racers.

Watch out, heel-strikers! The heel area may feel tight since it’s 6.1 mm narrower than average.

Pros

  • Supreme stability... in a supershoe!
  • World-class energy return and cushioning
  • Feather-light and agile
  • A dream come true for marathoners
  • Wonderful breathability
  • Top-notch grip, even in wet conditions
  • Outstanding outsole durability
  • Accommodates wide feet

Cons

  • Risk of heel slippage
  • Lacing can be tricky
  • Not suited for heel strikers
Full review of Adidas Adizero Adios Pro 3

Competition running shoes with the best value for money

What makes it the best?

Among the competition running shoes we’ve tested, the PUMA Deviate Nitro Elite 3 stands out with the best value because of its exceptional build, superior foam, and explosive nature. At £230, it’s reasonably priced given the record-breaking speed it delivers that’s comparable to more expensive racers in our lab.

This shoe is elite in power and speed, launching us forward with its stiff carbon plate and rocker structure. Its light 7.2 oz (240g) build makes each turnover feel smoother, while each toe-off is delivered with exceptional energy return. Our flex test confirms it’s 78.5% stiffer than average, translating to responsiveness in our runs.

What keeps us going faster and faster is the cutting-edge Nitro Elite foam, infusing our strides with remarkable bounce. Complementing the fast-paced action is a plush 15.1 HA foam that catches our feet, and a balanced 18.3 HA base layer to stabilise our landings.

The PumaGrip’s adhesive power is unmatched and avoids any slips even through fast corners. However, its soft 72.6 HC rubber makes it more vulnerable to wear and tear. We recommend saving this shoe for racing to prolong its lifespan.

Pros

  • Superb Nitro Elite foam
  • Breathable, lightweight upper
  • Extremely responsive
  • More affordable than most supershoes
  • Outstanding grip
  • Great comfort for a racer
  • Major improvements from v2
  • Fast, agile, race-ready performance
  • Fantastic tongue

Cons

  • Not the best for heel strikers
  • Durability concerns
  • Lacks stability for some runners
Full review of Puma Deviate Nitro Elite 3

Best competition running shoes for triathlon

What makes it the best?

Supported by our lab tests and runs, we discovered the Noosa Tri 16 is a light, airy, and comfortable shoe that can go fast and be worn sockless! As eye-catching as it looks, it has intentionally unique qualities that make it highly suitable for triathlon races.

Our feet feel fresh whether we go easy or full-out speed. NT16 sits at a light 7.7 oz (217g), levelling with our lab-tested runners designed for racing. It requires less effort to lift each foot, keeping our momentum strong during off-the-bike runs. The fluid midsole, which emerged 28.9% more flexible than average in our bend test, boosts our agility and comfort.

The FF Blast+ cushion provides much-needed energy return and support to accomplish the third sport of the race. Our durometer measured the foam to be 14.1% softer than average— balancing comfort and responsiveness. Meanwhile, the 3D Guidance System ensures each stride feels surefooted especially as fatigue sets in.

NT16 feels refreshing as the breeze brushes through our toes. Our breathability test confirms this with a perfect score. Its seamless mesh makes it comfortable to wear even without socks, which many triathletes do to save time. On top of this, it includes heel and tongue tabs for faster wear during transition. However, the upper’s light nature compromised durability. Those who need more robust uppers should look elsewhere.

Pros

  • Exceptionally lightweight
  • Attention-grabbing aesthetic
  • Gusseted tongue
  • Highly responsive and fun
  • Comfortable upper
  • Great for triathlon
  • Really versatile
  • Fantastic price point
  • Breathability

Cons

  • Upper longevity
  • Toebox volume
  • Minimal tongue padding
Full review of ASICS Noosa Tri 16

Picture this.
You’re running.
You’re giving it your everything.
You’re pushing and you want that new personal best, but your legs are getting tired and you feel like you’re shoes are working against you.
The midsole is soft but not good soft.
There’s a lace bite and it’s hurting your instep.
You want to push harder but you just... Can’t.
Welcome to the crew of people who chose bad race-day shoes.
Now, let’s fix that.

asics-metaspeed-sky-paris-parts.jpg
Competition running shoe cut into pieces in RunRepeat lab

4 features of competition running shoes

You want to run the fastest time and feel good at the same time: no blisters, no discomfort, and no premature leg fatigue. Of course! Here’s what we look for in competition running shoes

  1. Responsiveness! It’s a must. This means that the shoe propels you forward, the foam is not dull, you don’t need to work extra to bounce off. 
  2. Lightweight or featherlight category of shoes. The lighter the shoes, the faster we are! 
  3. Stack height of at least 25mm for shorter distances (5k, 10k, half marathon) and at least 30mm for marathon distances. 
  4. Stable platform especially if you’re a heel striker
  5. New technologies: rockers, carbon plates of different shapes and sizes combined with new foam compounds, see-through uppers, premium insoles, and so on. 

We will explain each of these features below, along with the lab tests we did to test them out and more features that we had to understand along the way. 

What you can expect from race day shoes

Based on the features mentioned above, this is what you can expect from race shoes: 

  • Soft yet stiff platform, especially in shoes with carbon-fibre plates 
  • They are very cushioned
  • Very breathable uppers 
  • Not a lot of cosy details like thick tongue padding, heel collar padding, or heel tabs because they all add unnecessary weight 
  • They feel and are very lightweight
  • Often, the chunks of the midsoles are cut out to save weight
  • Thin rubber that often does not cover the whole outsole surface to save weight
  • They are not durable which is why they should be saved for the race day 
  • They are expensive.

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Of course, there are and always will be some outliers. In this guide, we focus on average runners and what works in most cases. You will see people finishing a marathon in Asics Gel Kayano 31 which is a stability daily trainer, or in a minimalist-almost-barefoot Merrell Vapour Glove 6 with almost no cushioning and definitely no fancy tech. 

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Cutting a competition running shoe in half in RunRepeat lab 

While it is possible to do such things, new PBs are not achieved in non-race shoes or at least in non-tempo shoes, and if you have no extensive experience and preparation for minimalist shoes, you could end up injured. 

Responsiveness: priority #1 in competition running shoes

The big mistake in finding race shoes and thinking they all work the same is not knowing the difference between standard foams and premium foams. 

visually-premium-standard-foams-no-difference-race-shoes.jpg
Just by looking at them, it's impossible to tell whether it's standard or premium foam

Standard foams are great for daily trainers, they are durable, affordable and they simply work. However, premium foams are what we’re looking for in competition shoes. They are insanely responsive, they have the leg-saving feature which makes us capable of running longer/harder, and they are light weight. The downside, of course, is that they are expensive and not durable. That’s why we keep race shoes for the race day. 

What you want in a competition shoe: premium foam that’s maybe even paired with a carbon-fibre plate. 

carbon-fiber-plate-cut-out-from-the-shoe.jpg

Since you can’t just look at the shoe and recognise a premium foam vs. a standard foam, it’s best to check the product description and find out if it’s a premium one. We cover this, along with all the possible foam details, in our Ultimate guide on shoe foams (which is where we took the overview below from). 

Premium foams overview

Brand Foam Top feature Major drawback
Nike ZoomX (Pebax) Energy return Durability
ASICS FF Turbo (Nylon) Durability Weight
ASICS FF Turbo+ (PEBA) Performance Stability
Adidas Lightstrike Pro (TPEE) Super-durable all-rounder Break-in needed
Saucony PWRRUN PB (Pebax) Comfort Energy return
Saucony PWRRUN HG (Pebax) Performance Maybe too firm for some
Puma Nitro Elite (PEBA + EVA / A-TPU) Durability Energy return
Hoka Unnamed (PEBA) Responsive Impact protection
Decathlon VFOAM (Pebax) / VFOAM PLUS (Pebax + EVA) Affordable Performance
Mizuno Enerzy Lite+ (PEBA) Bounce Stability
Reebok Floatride (Pebax) Low price Energy return
Li-Ning BOOM (Pebax) Bounce Hard to find
On Helion HF (Pebax) Energy return Durability
New Balance FuelCell (Pebax) Softness Weight

Standard foams overview

Brand Foam Top Feature Major drawback
New Balance FuelCell (TPU / EVA)  Cloud-like feel Stability
Skechers HyperBurst (EVA) Lightweight Energy return
Skechers HyperBurst Pro (TPU) Responsive Heavy
Nike React / ReactX (TPE + EVA) Versatile Dull
Nike Phylon / Cushlon (EVA) All-rounder Energy Return
Adidas Boost (TPU) Comfortable Heavy
Adidas Light Boost (TPU) Weight Boring
Adidas Lightstrike (EVA / TPU) Stability Too firm
Adidas Dreamstrike+ (Bio-based PEBA) Versatile Weight
ASICS FF Blast / FF Blast+ (EVA + OBC) Bounce Durability
ASICS FlyteFoam (EVA) Lightweight Energy return
Brooks DNA Loft (EVA) / DNA Flash (EVA) Lightweight Dull
Brooks DNA Amp (TPU) Energy return Heavy
Brooks BioMoGo DNA (EVA) Comfort Energy return
New Balance Fresh Foam / Fresh Foam X (EVA / EVA + PEBA) Softness Mushy
Merrell Super Rebound Compound (EVA) Durable Energy return
Saucony PWRRUN (EVA + TPU) Versatile Boring
Saucony PWRRUN+ (TPU) Energy return Weight
Hoka ProFly (EVA) Comfortable Energy return
Hoka ProFly+ (EVA) Responsive Durability
On Helion (EVA + OBC) Unique Firm
Altra Ego (EVA) Fun Energy return
Altra Ego Pro (TPE) Bouncy Cushion
Puma Nitro (TPEE / PEBA) Responsive Durability
Puma Profoam / Profoam Lite (EVA) Durability Cushion
Under Armour HOVR (EVA + OBC) Stability Firm
Mizuno Enerzy (TPE) All-rounder Bounce
Mizuno Enerzy Core (TPE) Softness Durability
Mizuno Enerzy Lite (Nylon) Lightweight Cushion
Mizuno Enerzy NXT (EVA) Soft Stability
Salomon EnergyFoam (EVA + OBC) Stability Boring
Salomon EnergyCell / EnergyCell+ (EVA) Durability Firm
Reebok FloatRide Energy (TPU) Price Heavy
TOPO ZipFoam (EVA + TPU) Energy Return Heavy
Inov-8 Powerflow Pro (EVA) Comfort Bounce

How soft are competition running shoes

We’ve already said that the competition running shoes are usually soft and stiff. But just how soft are they? Let’s measure that. 

softness-of-a-race-shoe.jpg
Measuring the softness of the foam in a race shoe

We use a shore A durometer to measure the softness of the foam. This has to be done on a shoe cut in half; otherwise, the results will be inaccurate

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The lower the number on the durometer, the softer the shoe. Based on our lab data, race shoes are 8.2% softer than daily trainers

 

In case you want your race shoes to be as soft as possible, here are our top 5 softest shoes (these tables are updated automatically with every new shoe review we publish): 

Stiffness of competition running shoes 

It turns out that the best combination for most of the runners is a race shoe that is soft and stiff. We measure stiffness in our lab using a digital force gauge. We clamp the toebox to a table and then bend the shoe to 90 degrees. 

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Testing the stiffness of a race-day shoe in RunRepeat lab

The more force we need, the higher the number on the force gauge and the stiffer the shoe. Looking at all the shoes we’ve tested so far, here are the average numbers for all 3 shoe categories: 

  1. Daily trainers: average stiffness 24.5N
  2. Tempo shoes: average stiffness 30.7N
  3. Race shoes: average stiffness 63.6N 

A carbon-fibre plate plays a significant role here because it makes the shoes stiffer.

Carbon-plated competition running shoes

So, what’s the trick here? There are many shoes now that feature a carbon-fibre plate but if it’s not paired with a premium foam, the results are not as magnificent. Also, these race shoes are more expensive than the ones without a plate. 

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Stiffness and price of competition running shoes

 

With a carbon plate

Without a carbon plate

Average weight

7.7 oz or 217.4g

8.1 oz or 229.0g

Average price

£240.2

£170.8

It’s important to note that carbon-plated running shoes might not work for you: a faster pace is needed to properly active the plate, some are made for forefoot/midfoot strikers only, and having an adequate weight might also play a role when it comes to experiencing all the benefits those shoes can offer. 

We covered the topic of carbon-plated running shoe in great detail in our guide Carbon-Plated Shoes Cut In Half, Explained and Lab-Tested

How cushioned are competition running shoes

Cushioning (stack height) of race shoes depends on the distance, but, overall, it’s safe to go with a minimum of 30mm at the heel. Here’s what we recommend: 

  • For marathon: minimum of 30mm at the heel
  • For half marathon: minimum of 25mm at the heel
  • For 5k and 10k races: minimum of 25mm at the heel

We measure the heel stack height and forefoot stack height in our lab, honouring the guidelines from WorldAthetics. This means that we a) cut the shoe in half b) measure at the centre of the shoe c) measure the heel stack height at 12% of the inner shoe length and d) measure the forefoot stack height at 75% of the inner shoe length. 

stack-heights-race-day-running-shoes.jpg
Measuring the forefoot and heel stack height using a digital calliper

This gives us accurate numbers that often deviate from what the brands are promoting. 

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Adidas said that Strung 2 has 50 mm at the heel, but we measured 45.7 mm

In case you want to go as high as possible, here are our top 5 highest competition running shoes. Just keep in mind that 40mm is the legal barrier and shoes with a higher heel stack height than that are forbidden in some races. 

Stability of race day running shoes

When we talk about the height of the platform we can’t oversee the stability. If midsoles are high and narrow, they are often unstable, especially when the foam is very soft. 

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This brings us to the width of the platform. Yet another thing we measure in our lab. 

midsole-width-measurements-race-running-shoes.jpg
Using a digital calliper to measure the width of the platform at the forefoot and at the heel

This stability is especially important if you’re a heel striker because that’s where the foam is often cut in an angle to save weight or the heel bevel is an extreme one making it not cushioned enough for heel strikers. 

narrow-vs-wide-base-race-running-shoes.jpg
Narrow platforms (up) vs wide platforms (down)

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The lighter, the better! 

It’s a known fact that heavy shoes can slow us down. This is why reducing the weight in race shoes is heavily prioritised. This can go as far as having:

  • less midsole (chunks are cut out to save weight)
  • having very thin outsoles
  • avoiding comfy padding in the tongue or around the heel 
  • avoiding tongue gussets
  • avoiding a heel tab or structural upper enforcements. 
midsole-chunks-cut-out-race-running-shoes.jpg
Parts of the midsole were cut out in these shoes
heel-padding-race-running-shoes.jpg
Sock-like and very pliable upper with no heel-collar padding (race shoe on the left) vs a very padded heel with a plastic heel counter in a daily trainer (right)
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Very thin tongue (race shoe) vs a thick one (daily trainer)

In our shoe lab, we weigh all the shoes in men’s US 9. 

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Weighing a competition shoe in RunRepeat lab 

In case you want the featherlight competition running shoes, here are our top lightest picks: 

Keep in mind that the weight can also depend on the distance because we need more durability for longer distances. Because of this, we use these reference points: 

  • Up to 270g for marathon running shoes
  • Up to 270g for half marathon running shoes
  • Up to 230g for 5k/10k running shoes. 

Superb breathability of competition running shoes

There are 2 reasons why race-day shoes are breathable: first, because they are cutting weight so thick uppers don’t make sense, and second, because nobody wants soaked feet that would end in blisters (to start with). 

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Testing the breathability of a race shoe 

We test breathability of running shoes by pumping the smoke into them. Then, we watch at the smoke that comes out: how fast does it come out? How much of it? Where exactly is it coming out - at the toebox, at the sides, or through the eyelets only? Based on this observation, we rate the breathablity of the shoe on a 1-5 scale, where 5 is the most breathable and 1 the least. 

Shoe type

Average breathability

Daily trainers

3.6/5.0

Tempo shoes

4.3/5.0

Race shoes

4.7/5.0

We don’t stop there, so we also look at the uppers under our microscope. 

asics-superblast-microscope-2054.jpg

This allows us to understand better what’s happening, why the smoke isn’t coming through the upper in some places and why it’s sometimes flowing out as if nothing’s stopping it. 

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It’s easy to notice the difference between uppers under the microscope: shoes that scored 5/5 (up) vs shoes that scored 3/5 (down) on our breathability test

Rocker: a highly wanted feature in race shoes 

Many runners look for a rocker in competition shoes. While having a geometry that mimicks a rocking chair sounds great, it is not recommended for everyone. 

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Rockered shoes can help if you…

Best to avoid rockered shoes if you… 

Have heel, toe, or forefoot pain

Have hip issues (bursitis, flexor strain)

Have Achilles tendon issues 

Experienced ITBS

Have reduced big toe extension (can’t lift it up separately from the other toes)

Have knee issues (runner’s knee, meniscus tears, jumper’s knee)

Experience calf or hamstring discomfort often

 

In the lab, we put the shoe against an L-shaped ruler which allows us to see how big of an angle the forefoot rocker has in each shoe. 

measuring-rockers-in-runrepeat-lab.jpg
Aggressive toe spring (up) and a more flat geometry (down) 
If you’re a fan of this technology, here are the best competition shoes with a rocker. Also, we highly recommend our in-depth guide All you need to know about rockered running shoes

Outsoles: foot strike and durability 

What does foot strike have to do with outsoles? Well, some competition running shoes are made for forefoot strikers. This does not mean that they don’t work at all for heel strikers, but if you look at the rubber placement, it is obvious that forefoot/midfoot strikers were favoured. 

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Rubber placement that favours forefoot/midfoot strikers

It’s important to keep this in mind because of the a) grip needed to run safely and b) durability. The exposed midsole is not grippy; it just slides over wet surfaces, and it is not durable at all. 

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Testing the durability of the outsole

To test the durability of the outsole, we press our dremel against it. We have standardised this test, we always use the same pressure, RPMs and the same time duration.

outsole-dents-competition-running-shoes.jpg
We measure the dent with a tyre tread gauge: the deeper the dent, the less durable the outsole 

What helps here is having more rubber to go through before you reach the midsole. This means more time for wear and tear. To check this as well, we use a digital calliper to measure the thickness of the rubber. 

outsole-thickness-race-running-shoes.jpg
Measuring the thickness of the outsole rubber 

Dealing with a lace bite: tongue thickness 

Lace bite is the pain or pressure we experience on our instep when we tighten the laces. It most often happens because the tongue is too thin. 

Competition running shoes are known for lacking any extra material, including tongue padding. Many race shoes feature a very thin tongue which is why you might experience a lace bite while trying to achieve a secure lockdown. 

Altra Escalante Racer 2 Tongue padding
Measuring the thickness of the tongue with a digital calliper 

If this is your pain point, our tongue-thickness measurements come to the rescue. We always measure the thickness of the tongue so you can know in advance what to expect. 

Racing in cold weather: which shoe to choose?

If you plan to race in very cold weather, we suggest choosing a shoe that 

  1. You have already tested in cold weather and are happy with its performance 
  2. Does not change its properties significantly when tested in cold weather. 

When it comes to the bullet #1, that’s on you. When it comes to the bullet #2, it’s where we enter the scene. 

Saucony Endorphin Pro 4 Difference in midsole softness in cold
Freezing a competition running shoe in RunRepeat lab 

We repeat 2 tests after freezing the shoe: softness and stiffness. These are the most important ones when it comes to the change in temperature and in the shoe’s performance. 

Some shoes can change their softness or stiffness significantly, but if their starting point is way below the average, they can end up being around-the-average soft or stiff post-freezing. This is why context matters. 

Below, we list the shoes that had the smallest change when comparing room-temperature results with post-freezer ones. 

Can you race in tempo/speed shoes? 

Of course. It’s just a matter of your goals. As mentioned above, some people finish marathons in daily trainers. However, doing a race in a speed shoe is much better than doing it in a daily trainer. Speed shoes overlap more with race shoes. 

competition-running-shoes-mood.jpg

If you race in a tempo shoe instead of a competition shoe, you might miss out on that little extra, a small push that could knock off a few seconds/minutes of your finish time. This can be attributed to the reduced weight of a race shoe, cutting-edge technologies that push you forward and save your legs, and so on. 

Many tempo shoes are race shoes at the same time. 

Author
Jovana Subic
Jovana Subic
Whether it's a vertical kilometre or an ultra, climbing in the Alps or exploring local mountains, Jovana uses every opportunity to trade walls and concrete for forests and trails. She logs at least 10h/week on trails, with no off-season, and 4x more on research on running and running shoes. With a background in physics and engineering management, she prefers her running spiced with data.