# CSS and zones creating an error

**URL:** <https://forum.athletica.ai/t/css-and-zones-creating-an-error/1565>\
**Category:** General\
**Created:** [April 17, 2024, 4:26pm UTC](https://forum.athletica.ai/t/css-and-zones-creating-an-error/1565 "2024-04-17T16:26:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mpderksen](https://forum.athletica.ai/user_avatar/forum.athletica.ai/mpderksen/32/131_2.png) [@mpderksen](https://forum.athletica.ai/u/mpderksen)\
**Post date:** [April 17, 2024, 4:26pm UTC](https://forum.athletica.ai/t/css-and-zones-creating-an-error/1565/1 "2024-04-17T16:26:24Z")

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I was confused why the recommended swimming paces for my zones were SO slow! My CSS result was 1:46/100 after the testing week. When I go to Plan Overview / Athlete Zones / Swim, the number I see is 186559, or 49:19/100yd. I try and edit to 106, and as soon as I hit the Update button, it defaults back to this number.  
Checking in Settings / Thresholds / Swim i see my CSS pace (seconds) is correctly entered as 106.  
First question: can you help me edit this?  
Second question: could this be why the software is constantly cautioning me that I’m over training? My load is probably pretty high after 2,500yds of Zone 5… (from it’s perception)

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**Author:** ![Prof](https://forum.athletica.ai/user_avatar/forum.athletica.ai/prof/32/28_2.png) [@Prof](https://forum.athletica.ai/u/Prof)\
**Post date:** [April 18, 2024, 8:53pm UTC](https://forum.athletica.ai/t/css-and-zones-creating-an-error/1565/2 "2024-04-18T20:53:57Z")

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Hi @mpderksen,  
Thank you for identifying this. We believe we have now fixed.  
Best,  
Paul