# Custom activity fields

**URL:** <https://forum.intervals.icu/t/custom-activity-fields/25515>\
**Category:** Uncategorized\
**Created:** [18 December 2022 13:30 UTC](https://forum.intervals.icu/t/custom-activity-fields/25515 "2022-12-18T13:30:18Z")\
**Posts on this page:** 1\
**Showing post:** 34

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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:** [12 September 2025 07:15 UTC](https://forum.intervals.icu/t/custom-activity-fields/25515/34 "2025-09-12T07:15:38Z")

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You can now add these to sports:

> [@Custom activity fields on sports](https://forum.intervals.icu/t/custom-activity-fields-on-sports/111867):
>
> It is now possible to add [custom activity fields](https://forum.intervals.icu/t/custom-activity-fields/25515) to sports in /settings: The “Select” button opens the field selection dialog: These are copied onto new activities and onto existing activities without a value for the field when they are analysed (like FTP and the other built in settings). This is useful for storing the results of lab tests etc.. You can use these values in calculations for other custom activity fields and streams, …

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_[View the full topic](https://forum.intervals.icu/t/custom-activity-fields/25515)._