# Show RF: A pickleball instant replay and line calling app!

**URL:** <https://discuss.roboflow.com/t/show-rf-a-pickleball-instant-replay-and-line-calling-app/8520>\
**Category:** ✨ Show & Tell\
**Created:** [February 5, 2025, 11:24pm UTC](https://discuss.roboflow.com/t/show-rf-a-pickleball-instant-replay-and-line-calling-app/8520 "2025-02-05T23:24:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Chris\_Smith](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/chris_smith/32/6578_2.png) [@Chris\_Smith](https://discuss.roboflow.com/u/Chris_Smith)\
**Post date:** [February 5, 2025, 11:24pm UTC](https://discuss.roboflow.com/t/show-rf-a-pickleball-instant-replay-and-line-calling-app/8520/1 "2025-02-05T23:24:43Z")

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I’ve been thinking it’d be awesome for pickleball clubs to have replay and line calling tech preinstalled to make close calls when the ball lands very close to the boundary line.

So, I built a little prototype last week using roboflow’s supervision and inference libraries.

Check it out here:  
[https://youtu.be/OrK8CEpFLhI?si=ia7pzgv1jxlOIw0L](https://youtu.be/OrK8CEpFLhI?si=ia7pzgv1jxlOIw0L)

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**Author:** ![Jacob\_Witt](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/jacob_witt/32/347_2.png) [@Jacob\_Witt](https://discuss.roboflow.com/u/Jacob_Witt)\
**Post date:** [February 6, 2025, 12:49am UTC](https://discuss.roboflow.com/t/show-rf-a-pickleball-instant-replay-and-line-calling-app/8520/2 "2025-02-06T00:49:00Z")

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@Chris_Smith this is sick!

Thanks for sharing. Hit me up if you have any product feedback or need some free credits to keep the videos coming.

[jwitt@roboflow.com](mailto:jwitt@roboflow.com)

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**Author:** ![Chris\_Smith](https://yyz1.discourse-cdn.com/flex029/user_avatar/discuss.roboflow.com/chris_smith/32/6578_2.png) [@Chris\_Smith](https://discuss.roboflow.com/u/Chris_Smith)\
**Post date:** [February 6, 2025, 6:21pm UTC](https://discuss.roboflow.com/t/show-rf-a-pickleball-instant-replay-and-line-calling-app/8520/3 "2025-02-06T18:21:32Z")

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Thanks Jacob!

I’ll think on the feedback and send over some thoughts once I’ve had a chance to reflect on it. And I’ll let you know about the credit offer - thanks for that!