I'm curious about this as well. In
game 1257652, baaaitcoin bet 1 btc and was forced to cash out at 38.08x. He has several more bets where he was forced to cash out at 1% of bankroll.
baaaitcoin also played on what I assume was an alt account (lolbaity42) simultaneously for some time. On games such as
game 1257628, the server was forced to cash out due to the per-round max (1.5% of bankroll). In this round baaaitcoin and lolbaity42 together earned more than 57 btc of profit.
So in terms of percentages, both maximums have been hit before.
A 1 BTC bet bringing in a 38 BTC return is stunning but it was for a very big risk