# Option to calculate percentages of pace Canova-style **URL:** \ **Category:** Feature Requests\ **Created:** [5 May 2026 13:40 UTC](https://forum.intervals.icu/t/option-to-calculate-percentages-of-pace-canova-style/128939 "2026-05-05T13:40:56Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![R2Tom](https://forum.intervals.icu/user_avatar/forum.intervals.icu/r2tom/32/50144_2.png) [@R2Tom](https://forum.intervals.icu/u/R2Tom)\ **Post date:** [5 May 2026 15:31 UTC](https://forum.intervals.icu/t/option-to-calculate-percentages-of-pace-canova-style/128939/2 "2026-05-05T15:31:14Z")
This is a one time step to create the custom zone, but you could do it right now and use it in the workout builder > [@Custom zones for sports](https://forum.intervals.icu/t/custom-zones-for-sports/114875/53): > > @brainiak005@claybeans Hey, sorry to necro a dead thread, but I actually set up some custom zones for 5K and Marathon pace based on the Running Writings calc. You have to do some math to get the percentages correct, since as you point out the pace percentages are calculated differently, but I did it. The two zone sets are “Marathon Pace Zones” and “5K Pace Zones”, and they depend on two fields, “Marathon Pace” and “5K Pace”. These are public – if you search for them, you should find them … The zones from this post are public if I saw it correctly, so you can use this as a starting point --- _[View the full topic](https://forum.intervals.icu/t/option-to-calculate-percentages-of-pace-canova-style/128939)._