Jens Jakob Andersen

Jens Jakob Andersen

Jens Jakob is a fan of short distances with a 5K PR at 15:58 minutes. Based on 35 million race results, he's among the fastest 0.2% runners. Jens Jakob previously owned a running store, when he was also a competitive runner. His work is regularly featured in The New York Times, Washington Post, BBC and the likes as well as peer-reviewed journals. Finally, he has been a guest on +30 podcasts on running.


Articles

Asics Launches Gel Kayano 26: The Latest Iteration of the Brand’s All-Time Favorite Stability Shoe
Asics Launches Gel Kayano 26: The Latest Iteration of the Brand’s All-Time Favorite Stability Shoe

This is a partner story with Asics. Asics has released the Kayano 26 (see our review here), the newest version of its flagship stability series which has been used by runners of all levels for 26 year[…]

The State of Running 2019
The State of Running 2019

This is the first mapping of Global running participation. The analysis covers 107.9 million race results from more than 70 thousand events from 1986 to 2018. This is by far the largest study of race[…]

Runner's Sex Guide
Runner's Sex Guide

Aerobic exercise is meant to work best for weight loss. Many would say that running is best for the purpose, and this opinion is well-grounded. However, we need to admit: there may be another way to g[…]

50 Shades of Plantar Fasciitis (Ultimate Guide)
50 Shades of Plantar Fasciitis (Ultimate Guide)

Your feet are marvelous. Each one has 26 bones, 33 joints, and more than 100 muscles. Needless to say, the design by Mother Nature is complicated but perfect. Every part is crucial as it is. That is w[…]

183,911 Running Shoe Prices Analyzed
183,911 Running Shoe Prices Analyzed

We have spent weeks analyzing price patterns of running shoes. First, you will be presented to an infographic with the most important conclusions. Secondly, we dig deeper into the numbers. Feel free t[…]

Expensive Running Shoes Are Not Better Than More Affordable Running Shoes (Study)
Expensive Running Shoes Are Not Better Than More Affordable Running Shoes (Study)

Based on 134,867 reviews of 391 running shoes from 24 brands, this study compare the list price of running shoes with how well rated they are. The key conclusion is that expensive running shoes are no[…]

Marathon World Record Over Time (Infographic)
Marathon World Record Over Time (Infographic)

We have compiled information about the marathon world record over time, which is illustrated in the infographic below. As you see, we have done great improvements. In the graphic you will find 1) the[…]

Research: Women Are Better Runners Than Men
Research: Women Are Better Runners Than Men

Danish research have revealed intriguing results from the most exhaustive study of marathon results in history. The study included 1.815.091 marathon results from 131 marathons. The new research concl[…]

Marathon Statistics 2019 Worldwide (Research)
Marathon Statistics 2019 Worldwide (Research)

NOTE: This report has been updated. See the most recent report on the state of running 2019 here presented at The Global Running Conference hosted by the IAAF in China June 2019. It includes data back[…]

Top 12 Shoe Lacing Techniques [Images + Video]
Top 12 Shoe Lacing Techniques [Images + Video]

We spent 284 hours researching and testing lacing techniques for running shoes. Here, you’ll find our best recommendations. Enjoy. This guide works for running shoes, hiking boots & hiking s[…]

Guides

Data Analysis: When Is the Best Time To Buy Running Shoes?
Data Analysis: When Is the Best Time To Buy Running Shoes?

We’ve tracked 12 million price points on more than 2000 pairs of running shoes and 5000 sneakers over 7 years from +200 retailers to give you the scientific answer to when is the best time to bu[…]

The Best Running Shoe Brands
The Best Running Shoe Brands

At RunRepeat we specialize in reviewing running shoes. We’ve now analyzed more than a million reviews from 33 brands which include reviews from more than 2,000 running shoes from the last decade[…]

Why you cannot trust “experts” and top-10 lists
Why you cannot trust “experts” and top-10 lists

Tl;dr: We believe editors cherry-pick popular shoes to earn more. You should not trust top-10 lists as the shoes picked are rarely the truly best running shoes. The purpose is not to discredit review[…]

Best Brooks running shoes
Best Brooks running shoes

With a "Run Happy" motto, Brooks believed that there is no right or wrong running shoe for you. Each runner picks the right shoe based on their preferences and running experience they want to achieve.[…]

Best Running shoes
Best Running shoes

If you're a beginner, we recommend that you scroll down to the 7-step guide on picking the right running shoes before buying. How we test and review running shoes We believe editors disguised as &ldqu[…]

Best Track & Field shoes
Best Track & Field shoes

Many athletic activities can be done using a shoe specially designed for it. The same can be said for the track and field category, with its selection of shoes that cater to the sport. If you are read[…]

Best Asics running shoes
Best Asics running shoes

Asics is a popular name in the running industry known for its durable, comfortable, and high-performing road and trail running shoes. This buying guide will help you find the right Asics running shoes[…]

Best New Balance running shoes
Best New Balance running shoes

New Balance offers a wide collection of shoes that are designed for road and trail running. If you want to get a new pair, this guide will help you pick the right one. How we review our New Balance ru[…]

Best Under Armour running shoes
Best Under Armour running shoes

Under Armour may seem to be a less popular brand when placed alongside the likes of Nike and Adidas. Many are surprised to find that the UA offers running shoes in the same vein as big brands do. If y[…]

Best Adidas running shoes
Best Adidas running shoes

Adidas is one of the top brands in the athletic footwear scene. In running shoes, Adidas continues to be a popular choice among users. Many of their models are uniquely built: prepped for performance[…]

Best Stability running shoes
Best Stability running shoes

Stability running shoes are helpful in providing runners the additional arch support, especially if they feel that the lack thereof is preventing a natural and comfortable movement. As a beginner, it[…]

Best Nike running shoes
Best Nike running shoes

Nike offers a wide selection of road and trail running shoes for beginners and seasoned runners. If you are unsure which one is best for you, this article will help you narrow down your choices. How w[…]

Best Long distance running shoes
Best Long distance running shoes

Most running shoes are built for long-distance runs, making the list of options longer. But, this guide will help you narrow down the options and choose the right long-distance running shoes for you.[…]

Best Trail running shoes
Best Trail running shoes

Trail running shoes are specifically built to tackle unpaved surfaces. If you are not confident about which one to buy, this guide article will help you. How we review trail running shoes At RunRepeat[…]

Lab tests and in-depth reviews

Saucony Axon
83
Good!

Saucony Axon review and lab test Saucony with a bargain speedster! The Saucony Axon is a fast, rockered, daily trainer built off the amazingly successful Endorphin platform. It’s designed for th[…]

Altra Rivera
84
Great!

Our review We all know Altra for the brand’s natural foot shape and balanced cushioning properties. Altra offers ample room for all those fine metatarsals to spread out evenly. The Altra Rivera[…]

Altra Timp 3
70
Bad!

Altra Timp 3 review The Altra Timp 3 serves as a versatile trail shoe, which you can rely on no matter the terrain, from mulch to rocky trails. However, its ride feels muddy, which limits the Timp 3&r[…]

Nike Air Zoom Terra Kiger 7
76
Good!

Nike Terra Kiger 7 review This is a lightweight neutral trail running shoe capable of taking on just about any trail terrain one may come across. This latest expression of the Terra Kiger model is a b[…]

Hoka One One Gaviota 3
86
Great!

Hoka Gaviota 3 review and lab test The Bondi for pronators! The Hoka Gaviota 3 is a plush, heavily cushioned stability shoe seemingly designed for foam lovers whose social standing is directly correla[…]

Puma Deviate Nitro
89
Superb!

Puma Deviate Nitro review and lab test Max cushioned meets high tech race shoe! Welcome back, Puma! I’m not 100% sure what the intention is behind the Deviate Nitro. Is it a race shoe? Is it a m[…]

Saucony Guide 14
91
Superb!

Saucony Guide 14 review and lab test If you don’t love surprises, the Saucony Guide 14 may be perfect for you! The Guide 14 is an everyday stability trainer that is more utilitarian than flashy.[…]

Saucony Kinvara 12
91
Superb!

Saucony Kinvara 12 review and lab test It’s a simple, fast, light, nimble trainer with a lot of flex and not a lot of drop. It’s not truly a minimalist shoe, but it feels minimal in all th[…]

Saucony Peregrine 11
89
Superb!

Saucony Peregrine 11 review and lab test Great winter shoe for people with narrow feet. The Peregrine 11 is a heavy-duty trail shoe with grip, durability, and performance as its focus. This shoe is id[…]

New Balance Fresh Foam 1080 v11
88
Great!

New Balance Fresh Foam 1080 v11 review and lab test Flexible uppers are great, they form to your foot’s shape, they move with you, not against you, and they tend to be light and breathable - all[…]

Altra Lone Peak 5.0
90
Superb!

Altra Lone Peak 5.0 review and lab test I loved them! They felt nice and flat, well balanced, wide in the toe box, and confident on any terrain I threw at them. The updated midsole gives this shoe a b[…]

Nike ZoomX Invincible Run
93
Superb!

Nike Invincible Run review and lab test Have you ever wanted to run across a ground made of trampolines? The new Nike ZoomX Invincible run is an everyday trainer built out of the DNA of Nike’s h[…]

Adidas Ultraboost 21
87
Great!

Adidas Ultraboost 21 review and lab test The Ultraboost 21 is a neutral socklike trainer with roots in high-tech shoe design. To me though it felt heavy, outdated, and a bit sloppy. I think Adidas nee[…]

Nike React Infinity Run Flyknit 2
74
Decent!

The verdict from 10 experts and 10+ users Just like the Flyknit 1, this is a polarizing shoe. Experts went from “move over Pegasus, there’s a new default in town” and “the most[…]

Brooks Glycerin 19
92
Superb!

Brooks Glycerin 19 review and lab test The Brooks Glycerin 19 is a daily trainer for neutral runners, with ample cushioning and lots of plushness in the upper. This is our first lab-tested shoe. We ar[…]

Altra Escalante 2.5
88
Great!

Altra Escalante 2.5 review I have been a bit disappointed that the Escalante 2.5s have not been a better road running shoe for me. On the bright side, I have other uses for them. I can take them on ea[…]

Hoka One One Bondi 7
89
Superb!

The verdict from 15 experts and 100+ user reviews The majority of experts agree this is a really comfortable cushioned shoe. They’ve described this experience as “it takes comfort to the n[…]

Brooks Catamount
91
Superb!

Brooks Catamount review The Brooks Catamount may be the best trail shoe on the market today. In a 9.7 oz, you’ll get adequate support, decent energy return (a lot by trail standards), plenty of[…]

Mizuno Wave Rider 24
90
Superb!

The verdict from 17 experts and 100+ user reviews Most of the experts liked this shoe: “really surprised,” “wasn't expecting to like it.” This was expected given that the major[…]

Asics Gel Cumulus 22
92
Superb!

Asics Gel Cumulus 22 review Good for the long run, good for the short run, the Cumulus is simply a good shoe that does everything well, which explains why they have been around so long. I ran almost e[…]

Asics Gel Kayano 27
91
Superb!

The verdict from 15 experts and 100+ user reviews Experts who are already Kayano fans love the 27th iteration. They said: “once Kayano, always Kayano” and that Kayano is an “uncrowne[…]

Nike Air Zoom Pegasus 37
89
Superb!

The verdict from 23 experts and 100+ user reviews “The shoe is a gem,” “brilliant everyday training shoe” - half of the experts love this shoe. The other half expressed much le[…]

New Balance FuelCell TC
85
Great!

New Balance FuelCell TC review This is the best shoe I have tested this year. Hands down! No shoe out there (at the moment) delivers a plush, premium, responsive, carbon fibre shoe that is pretty dura[…]

Salomon Sense Ride 3
90
Superb!

The verdict from 19 experts and 100+ user reviews The majority of the experts' reviews we’ve read have expressed love for this trail running shoe. They summarized their reviews with comments suc[…]

Saucony Kinvara 11
91
Superb!

Saucony Kinvara 11 review Saucony was not my first love, nor my second, but it certainly is my latest. The Saucony Kinvara 11 is one of my primary workhorses that gives an excellent fit, just enough c[…]

New Balance Fresh Foam Hierro v5
89
Superb!

New Balance Fresh Foam Hierro v5 review The New Balance Fresh Foam Hierro v5 is the perfect shoe if your jaunts consist of group runs after work, on moderate terrain, and you want a great-looking shoe[…]

Brooks Bedlam 2
87
Great!

Brooks Bedlam 2 review I was really hoping I'd fall in love with the Brooks Bedlam 2, but I'm sad to report it's a crush that never materialized into a full-on healthy relationship. I'm still wearing[…]

Brooks Ricochet 2
88
Great!

Brooks Ricochet 2 review Ricochet 2 is a great shoe, and I highly recommend it. It feels light, fast and comfortable, and gives the impression of being lower drop than its 8mm. This is a high-quality[…]

Hoka One One Speedgoat 4
86
Great!

Hoka One One Speedgoat 4 review An addition to the Speedgoat lineup, the Hoka One One Speedgoat 4 is designed for ultrarunning. There’s a lot of updates in here—some good, some bad, in my[…]

Nike Joyride Run Flyknit
85
Great!

Nike Joyride Run Flyknit review Is this shoe worth $180? Definitely not. I can’t recommend this shoe to anyone other than someone looking for a super soft, slow shoe to run in. While the Joyride[…]

Nike ZoomX Vaporfly Next%
86
Great!

Nike ZoomX Vaporfly Next% review The VaporFly is the most advanced shoe of its generation. The super foam ZoomX along with the carbon fiber plate makes for a truly unforgettable ride, which I will rem[…]

On Cloudswift
90
Superb!

On Cloudswift 2.0 review and lab test After testing, I’m a little unclear if these are running shoes, gym trainers, or just sexy sneakers? Cloudswift 2.0 is a daily trainer designed for an &ldqu[…]

Reviews

Asics Gel Ziruss 3
82
Good!

The Asics Gel Ziruss 3 veers away from the signature comfort the Ziruss series is known for. So much so that it's not recommended for long-distance efforts. Instead, they see it as more fitting for wa[…]

New Balance FuelCell Prism v2
81
Good!
La Sportiva Karacal
76
Good!

A training sibling to the race-oriented La Sportiva Jackal, the La Sportiva Karacal is crafted for long days in the trails and mountains. Its intended purpose is to stabilize and keep your feet comfor[…]

Nike Free Run 5.0
81
Good!
Asics Metaspeed Edge
83
Good!
Adidas Fluidstreet
80
Good!

True to its promise, the Adidas Fluidstreet sure does a lot for such a small price. It's an affordable daily trainer made for your runs, walks, and gym sessions. Donning a very sleek and stylish look,[…]

Adidas Solarboost 3
86
Great!

To temper down your expectations, the Adidas Solarboost 3 is not a highly propulsive trainer. It does nothing bad, but it's best at nothing either — it's not the fastest, lightest, most responsi[…]

Asics Dynablast 2
81
Good!
Nike Quest 4
81
Good!
Under Armour Charged Vantage
66
Bad!
Hoka Zinal
86
Great!
Nike Pegasus Trail 3
85
Great!
Diadora Mythos Blushield Volo
81
Good!

The Mythos Blueshield Volo from Diadora is another case of an overhyped shoe. It's a good daily trainer for easy days at best. It works but it's not revolutionary. So, if you're looking for something[…]

Adidas Adizero Adios 6
76
Good!
Saucony Endorphin Trail
87
Great!
Brooks Cascadia 16
89
Superb!
New Balance FuelCell Propel v3
81
Good!
Saucony Triumph 19
85
Great!
Asics GT 2000 9 Knit
75
Decent!
Under Armour HOVR Machina Off Road
81
Good!