What Does +330 Mean in Sports Betting?

+330 is an underdog price. The plus sign means the team is the underdog, and the number is how much you win on a $100 bet. At +330 a winning $100 bet profits $330.00, because the market sees this outcome as less likely.

-330 is the favorite price: you risk $330.00 to win $100, and a $100 bet at -330 returns $130.30 ($30.30 profit), with an implied probability of about 76.7%. +330 is the reverse, an underdog price where $100 wins $330.00. At a sportsbook, the favorite opposite a +330 underdog is usually priced steeper than -330, because the vig comes out of both sides. See the full -330 odds breakdown.

A $100 bet at +330 returns $430.00 total, which is $330.00 in profit. Scale it to any stake with the betting calculator, or add +330 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.

+330 implies a win probability of about 23.3%. 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 23% reads as a contract priced near 23 cents; the prediction market calculator converts between the two.

+330 American equals 4.30 in decimal odds and 33/10 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 +330 and you keep more of the win. No house margin in the middle.