There are 4 different games in the Altador Cup. The max number of Yooyuball games to count for your score is 35, so playing any more than that does nothing. Then it’s 301 for Make Some Noise and Shoutout Shootdown, and I’d have to check the new Slushie Slinger max.
If you’re trying to play more than just the standard YYB, people will then go to the other games, and play some %.