maybe it can happen in slot games, but if it's sports betting, all players can win. I don't think the casino can control the result of a sports game
if we say that all players can win but we should be able to see from the back side that there are also gamblers who bet on the favorite team with a large amount and lose like the case of someone who bets on the underdog team with a bet amount of $ 1 million but the result is the underdog team loses. from this incident we can calculate the number of people who lost with the lucky ones choosing the opposing team.
so from this we can see that not only casino games but sports betting can be used to pay players who win big so as not to drain the bankroll too much.