Statistics software for table tennis

Simple Excel spreadsheet will probably do here. Your main challenge is not how to analyze data, it's how to collect it. So, watching videos of her play and annotating it for things like: FH vs. BH win/loss, placement, 3rd ball, serve receive errors etc. Coach probably can suggest other metrics that matter.

And yes, it should be useful

Physicist/software engineer here. So your approach somewhat resonates. Dan's opponent here: https://m.youtube.com/watch?v=u3L8vGMDYD8 might have the data to really do some analysis.
For us mere mortals without that machinery we have to do the inverse, I guess: throw bunches of data at our brain to let it learn all the ingredients for that game: the footwork and proper positioning to the ball, the angles of racket, arm and body movements for the strokes, the feeling of how much spin can be produced and how it affects the ball trajectory (yeah, Magnus effect), etc.
Each club should have its coach to show it to the kids... Or well, in the absence of that, just hit a thousands balls in the cellar. That's how I started as a kid. Just have fun, that's the most important with any sport anyway.

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Multiball. Multiball. Multiball. Mulltiball

victorcastro99 said:

Hi to all,

........ I can't help her much, in the technical part of the game, since I'm not a professional player, .........

victorcastro99

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There's no coach as good as an interested parent.
The most important learning thing for a player is table time. Far more important than data gathering is working through the boring bits of getting good footwork as a natural part of her game. Anyone can learn to be a good multi-ball feeder whatever their playing standard. Spend the hours with her doing multiball and blocking. Look up videos on the different techniques and read TTD forum posts. Of course you manage how much professional coaching that she gets for the technical stuff. That's where the important data gathering is. You accompany her at the coaching sessions and note what the coach teaches. Then you apply that in your multi-ball sessions with her. Don't worry, after a year you'll be amazed how much your own skills will improve.
Plus the big benefit is that your personal relationship will be solidified in what is a quite stressful time of life for any youngster.

I speak from experience.

You can use the system described in this video : https://www.youtube.com/watch?v=CT1EztlxAIw

In short you note how you win and lose points. I have done it some times with video of my matches. I think that's useful because it's not so easy to find where we actually make mistakes

Are you familiar with tensorflow? We have a large probability library there that will help you if you are handy on that side of things which it sounds like you are.