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Super Old Spikes vs. Super Spikes
Recently when moving houses, I found my old high school track spikes (Nike Zoom Kennedy) in a box in the attic. I was surprised that I...
Nov 3, 2022


Puma Fast-R vs. Adidas Adios Pro 3
Puma vs. Adidas, a storied rivalry of the Dassler brothers and the town of Herzogenaurach. In this matchup, I compared the top super shoe...
Oct 13, 2022


The OG Case Study
This is the first running economy case study I ever conducted comparing the Nike Alphafly to the Hoka Carbon X. I had just raced my first...
Sep 29, 2022


Puma Deviate Nitro Elite
I tested my running economy in Puma Deviate Nitro Elite, the shoe Molly Seidel wore in her Bronze medal marathon run in the 2020 Tokyo...
Sep 29, 2022


Adidas Adios Pro 2
One of the super shoes I wasn't able to get when we conducted the Super Shoe Study was the Adidas Adios Pro line. The first version was...
Sep 29, 2022


Crocs
Perhaps one of the greatest questions in modern running shoe history...how do Crocs impact running performance? This question is only...
Sep 29, 2022


Dragonfly Spikes vs. Alphafly Shoes!
Previous research on the Vaporfly showed about 2.5% better running economy over a traditional distance spike. However, there is no...
Sep 28, 2022


New Balance RC Elite v2
Previously, our super shoe study data and my personal testing data showed the New Balance RC Elite v1 did not offer the same magnitude of...
Sep 28, 2022


Alphafly vs. Vaporfly Uphill Battle
Previous research showed that the running economy benefits of the Nike Vaporfly relative to a standard control shoe, while still...
Sep 28, 2022


How long does the Alphafly magic last?
Many have wondered how many miles the running economy benefits last for in a pair of super shoes. For the Alphafly specifically, I...
Sep 28, 2022


Pop Goes the Alphafly
How much do the air units on the Alphafly impact performance? I have been curious about this for a while. Thanks to a gently, used donor...
Sep 28, 2022


Nike ZoomX Invincible
I tested my running economy in the Nike ZoomX Invincible, a shoe with a thick slab of ZoomX foam, against the Nike Alphafly. I didn’t...
Sep 28, 2022


Nike Streakfly
I tested my running economy in the Nike Streakfly, a shoe marketed for 5k and 10k racing. Testing Methods I ran in the Nike Streakfly as...
Sep 27, 2022


VKTRY Carbon Insoles
Previously when I tested the Nike Invincible, I found no benefits to running economy despite all the ZoomX foam. While the shoe is very...
Sep 27, 2022


Ultimate Case Study Compilation
Alright, here it is! The ultimate case study compilation of my personal running economy shoe testing over the last year. I have...
Sep 26, 2022


Altra Vanish Carbon
I tested my running economy in the Altra Vanish Carbon. Testing Methods I ran in each shoe as well as the Nike Alphafly and my typical...
Sep 25, 2022


Asics Metaspeed Sky +
I tested my running economy in the Asics Metaspeed Sky +, the original Asics Metaspeed, and the Nike Alphafly. Testing Methods I ran in...
Sep 25, 2022


Nike Alphafly Next% 2
I tested my running economy in the Nike Alphafly Next% 2 against the OG Nike Alphafly. Testing Methods I ran in each shoe as well as my...
Sep 17, 2022
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