There is, but mostly this tournament is conducted by different centralised exchanges or some other altcoin project. With your topic, I have just scanned and searched through my notes to see if I can get a particular exchange that I am aware of conducting this trading tournament, but it seems I have deleted it already, and I can't remember the name of the exchange, but what you must know is that there are tournaments like this that exist and reward winners.
Certainly, you're correct about such tournaments organized by exchanges. I conducted a brief search and came across this upcoming KCGI tournament, which appears to be sophisticated.
https://www.bitget.com/blog/articles/bitget-announces-trading-tournament-kcgi-2023 Trading competitions like this is usually a win for both parties. While traders are incentivized, exchanges see engagements go up significantly on their platform. The pool to this even is particularly interesting something of a shift from the regular