Since you know there is a 50/50 chance of winning if you bet on one color, you know that you will eventually win the bet. In roulette, if you have enough money you can always buy yourself out a hole. Unfortunately, the game caps the max bet at 200, so you have you play your odds the best way possible to maximize your chance of keeping your lead.
So it's really just a matter of betting correctly. If you have a better strategy, feel free to share without bashing anybody else!ĥ0/50 chance to win if you always bet on one color to win.