Field testing validation (Hoka, Stryd, RunScribe and more…)


Beautiful weather out here in Clearwater Bay. I set out to carry out a few simple tests I was meant to do for a long time already.

The plan is to run a few different pair of shoes across the track (same conditions, same pace, same speed…) and have a look at the data captured by STRYD powermeter & Runscribe sensors.

[Engineering background, I have always been into data analysis as a way to improve… “What gets measured gets improved” (from guru Peter Drucker) and purchased these awesome sensors long time ago in the Kickstarter phases. Both Companies in Boulder Colorado, probably one of the best places to live and work in the World! For sure on my bucket list to go live there someday…Even met the STRYD folks in Kona this year, replaced my old STRYD sensor with the latest one. Cool gesture, thanks.]



The plan is to run 5 laps around the track (2000m) at steady pace. I was thinking 4min pace (1’36 lap) but ended up running the first 2k in 7’30 so I thought I should aim for same time with every other shoes…2nd 2km went 7’42 unfortunately. Geez why am I so terrible at pacing today…I felt pain in my hamstring during the 2nd run so might be the reason I slowed down. For the last one the pain did not go away so I preferred to stop after 3 laps (5min approx.) and not make it worse…Anyway, I’ll have to repeat this field test someday and do it properly (4min pace sounds better to me too).

Oh…and yes, I took some rest in between each runs. Probably 5 to 10min. Next time going 4min pace may keep me in aerobic or tempo zone (steady state / no impact from fatigue).

I ran the ASICS GEL NIMBUS first (Excellent running shoes, cushioning but not oversized). Second I ran the ON Cloudsurfer (more on the minimalist racing flat style, although old model…) and finally I ran the HOKA Stinson Road 3 (oversized, one of my favorite shoe ever).

Still, the few results I collected were quite interesting…. Summary shown below:


I was quite surprised to find out a lower ground contact on the HOKA!? Maybe because I am used to run those shoes. But still, I went slower and at a lower cadence. Interesting. They may be simply more bouncy! Similarly to Newtons (that I should test out as well for reference).


Overall…I am looking forward to getting rid of that hamstring niggle to come back out there for some more testing!

Thanks STRYD & RUNSCRIBE for the sensors. It may not be 100% accurate, although the STRYD is quite impressive (exactly 2km!). For power, there was some wind and I am not sure it can translate onto the results…to be reviewed.


I also love the STRYD analysis about where I should focus, which is kind of true I reckon!


Nota: Leg stiffness is a measurement of how much energy a runner can recycle. The higher the better it seems. And consistent throughout the run is another key component.






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