We cover this in the Q&A of Understanding Your TrainingPeaks Structured Workout Plan, included below for your convenience:
Q: My Stryd zones and 80/20 Zones are not aligning in the Stryd app. Why?
While 80/20 uses a fixed duration to determine run power threshold – 95% of a 20-minute trial, or 95% of CP20 – Stryd uses a dynamic method to determine critical power. This could be CP20 for one athlete, or CP40 for another. Therefore, the two methods may not completely align as the Stryd method is fluid. To resolve this, disable Auto-Calculated CP in the Stryd mobile app and manually set your Stryd CP to match your 80/20 run power threshold. https://support.stryd.com/hc/en-us/articles/360057616393
If the run power threshold set in TrainingPeaks is the same as the critical power manually set in the Stryd app, the two applications will align.
Thanks David. I’ve managed to do 10K Level 1 with my Garmin Watch using their pace but I live in an area with tall buildings and it was annoying to see my watch thought I was running fast while I was only walking!!! There were times when I couldn’t do my Fartlek runs properly for this reason and it made me to buy Stryd.
I’m going to start 10K Level 2 plan now. How often do you need to do time trials? I used to do it every 3 weeks or so when I did Level 1 but not sure if I should have done it more often?