If you were to bet $10 on +170 odds you would receive $17.00 in profit if this outcome won. Odds accompanied with a positive sign (+) indicate that this is the underdog and this outcome will have a lower chance of winning compared to a favorite, however underdogs will yield a higher profit if they win.

In American sports betting, odds are typically expressed with a plus (+) or minus (–) symbol followed by a number. For example, +200 signifies the amount a bettor could win if wagering $100. If the bet works out, the player would receive a total payout of $300 ($200 profit + $100 initial stake).

The “+” and “-” are put in front of odds or lines, indicating the favorites and underdogs. The favorites will be marked with a minus sign, whereas underdogs have a plus sign. This is the case for all types of bets, including moneylines and point spreads.

If a team is +120, this means they are the underdog. If that team wins, your $100 bet will win you an additional $120. If a team is shown -160 that means they're a favorite (expected to win). You'll need to make a $160 bet to be paid $100 in winnings if that team wins.