That depends on one's bankroll.... For me personally, I wager 5% to 6% of my bankroll on my (3*) plays.... 3% to 4% of my bankroll on my (2*) plays (which account for about 80% of my bets).... 2% of my bankroll on my (1*) plays.... and 1% to 1.5% on my Free non-premium plays. I do not bet stars or units.... but I understand that is how the system is set up here at pregame.com. Best of luck to you sir.