[longtimelurk]

If someone wanted to make something like this for tennis I have several large academies that would love to use it (could easily get a couple co-founders like the UTR founder to offer it to the tournament circuits and associations and make it a robust business)

[bluepanda1234]

You may want to reach out to the PlayReplay team, I saw this post about their work which looks quite cool: https://www.rerun.io/blog/playreplay

[miskin]

Have you checked SwingVision (https://swing.tennis/)?