1st Underground Online Blitz Tournament (UOBT)!

With such a system, it's almost impossible not to make a single mistake in 5 rounds. Maybe it would be better to introduce coefficients and determine the winner based on the number of points scored?

Otherwise, it will be something like this:
BOB-№74 - jackpot 50000$$$ )))))

Actually, that's what rebuy rounds are for – so that even after making N mistakes, you can continue the game. Considering that there are 3 rebuy rounds, to win, you only need to avoid making mistakes in 3 rounds (1 attempt is free, and you can play 3 more rounds for money).