Mastodawn

Ran my first half-marathon yesterday: 2:03:33.

The first 17km felt controlled. Power on target, everything according to plan. Then km 18 happened, and the plan left the chat.

Lost 75 seconds per km over the final 4km. The post-race data analysis was clear: turns out I was running on half the fuel I needed (49g carbs/hour instead of 80+) while holding a power target (303W of CP 325W) that was too ambitious for the duration.

Lessons were learned here.

https://strava.app.link/Ez07fkdyw1b

#Stryd #running

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Jorijn Schrijvershof Mar 15

But! The weather was fantastic, and the route was stunning. I really enjoyed the first 17km, at least. Still, I’m very proud of my achievement. The goal was to finish it in under 2 hours, and I came very close.

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Danny van Kooten Mar 15

@jorijn Great job! How are you measuring these power numbers? I'm very used to them from cycling, but only ever ran by pace or heart rate. Seems interesting, if accurate.

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Jorijn Schrijvershof

@dvk

Thanks! I'm using Stryd for that. From what I understand, it's not a 1:1 match to cycling for physics-related reasons, but they manage to roughly capture power using proprietary algorithms. Tests (not done by me) confirm that their power very accurately traces physiological output.