10 to 1 odds mean that you'll receive ten times the amount of your original bet as profit if you win. For example, if you bet $100 on a 10-to-1 bet, and won, you'd get $1,100 back from the sportsbook ($1,000 profit plus the original $100 bet). A 10-to-1 bet would be denoted as (+1000) in American odds format.