Gamblers can try following different betting systems to make a profit, including the Martingale, Reverse Martingale, D’Alambert, Fibonacci, and James Bond System. It’s also an option to hope for a bigger payout and bet on a single number or play it safe and bet on outside bets with a 1:1 payout like the outside bets that include the red/black, odd/even, and high/low.