What Does -270 Mean in Sports Betting?

-270 is a favorite price. The minus sign means the team is favored, and the number is how much you must risk to win $100. At -270 you risk $270.00 to win $100, because the market thinks this outcome is more likely than not.

+270 is the underdog price: a $100 bet at +270 wins $270.00 profit ($370.00 back), with an implied probability of about 27.0%. -270 is the reverse, a favorite price where you risk $270.00 to win $100. At a sportsbook, the underdog opposite a -270 favorite is usually priced below +270, because the vig comes out of both sides. See the full +270 odds breakdown.

A $100 bet at -270 returns $137.04 total, which is $37.04 in profit. Scale it to any stake with the betting calculator, or add -270 as a leg in the parlay calculator to see what it does to a multi-leg payout. The payout is the same idea at any book; what changes is how much vig is buried in the price.

-270 implies a win probability of about 73.0%. That is the break-even rate: if you think the real chance is higher, the bet has value. Devig the market with the no-vig calculator to compare it to the fair number. On a prediction market, the same 73% reads as a contract priced near 73 cents; the prediction market calculator converts between the two.

-270 American equals 1.37 in decimal odds and 37/100 in fractional odds. Decimal is the easiest format for comparing prices, since a bigger number always means a bigger payout. Convert any price with the odds converter.

Every American price at a sportsbook includes the vig. BettorEdge is a peer-to-peer betting exchange: you trade at market-fair odds with other bettors, so the same outcome can pay more than -270 and you keep more of the win. No house margin in the middle.