# Custom zones work started

**URL:** <https://forum.intervals.icu/t/custom-zones-work-started/112132>\
**Category:** Uncategorized\
**Created:** [16 September 2025 15:35 UTC](https://forum.intervals.icu/t/custom-zones-work-started/112132 "2025-09-16T15:35:29Z")\
**Posts on this page:** 1\
**Showing post:** 113

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**Author:** ![david](https://forum.intervals.icu/user_avatar/forum.intervals.icu/david/32/30189_2.png) [@david](https://forum.intervals.icu/u/david)\
**Post date:** [5 November 2025 05:14 UTC](https://forum.intervals.icu/t/custom-zones-work-started/112132/113 "2025-11-05T05:14:43Z")

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This is live for everyone now:

> [@Custom zones for sports](https://forum.intervals.icu/t/custom-zones-for-sports/114875):
>
> You can now define very flexible custom zones, a new premium feature. These are in addition to the normal power, heart rate and pace zones. Zones for any activity stream (not just power, HR and pace) including [custom streams](https://forum.intervals.icu/t/custom-activity-streams/44237) Overlapping and non-contiguous zones Zones based on any standard anchor (FTP, LTHR etc.) as well as custom activity fields and absolute values Custom colours User defined zone ID (not just Z1, Z2 etc.) Time in zones Workout prescription (only for power, HR and pace streams…

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_[View the full topic](https://forum.intervals.icu/t/custom-zones-work-started/112132)._