There's an interesting promotion by Roobet "Roo's $100,000 Office Marsupial F.C." the prize is $100,000 and it will split to 50 lucky gamblers [1]. To join it we need to wager at least $10 to get 1 ticket, but if you bet in any football match with the same amount you will get 5 ticket. This mean it's more profitable to bet on football matches than the other sports or games if you're looking to win this contest.
[1]
https://promotions.roobet.com/promotions/roos-100-000-office-marsupial-f-cThis type of promotion is done by roobet regularly, they have done it many times and there were some winners in the past with low number of tickets.
Some of previous raffle gave double ticket for playing in Pragmatic games IIRC, and now it is great that players will get x5 ticket by wagering in football matches.
Its been a while since my last play in roobet, I think I'll come back because of this raffle, collecting few tickets to get the chance to be one of the lucky 50 winners.