No need to work hard to win at the roulette, the house edge is ridiculously small (3.7%) and it is so easy to win. The casino would lose 47% of the time and win only 53% of the time based on this.... In comparison, the house edge for sports is 20% and the odds are adjusted so that the casino will win 20% at every single bets.

So, roulette, if you pick any numbers, you have much more chance to see it once or more than none within 35 tries.

Also, progressive bets work so well. You just need to know that Rng and live roulettes are rigged (that's the only reason why everybody lost a lot of money). So, be paranoid and switch casino after 2 losses in a row. After a deposit in a casino you didn't play for a long time, you have 90% chances to win (instead of 50%) but if you stay in the same casino, after 5 losses in a row, you have 10% chances to win (instead of 50%). So, play accordingly and you can win a lot of money.