KEY TAKEAWAYS
A moneyline bet is a wager on which team or player wins a game outright. There is no point spread to cover: if your side wins, your bet wins, whether the final margin is one point or thirty. The price is shown in American odds, where a minus sign marks the favorite and a plus sign marks the underdog, and that number tells you exactly how much a winning bet pays.
Understanding how a moneyline works matters because it is the most basic market on any betting board, and its odds use the same American format found on spreads, totals, parlays and props. Once you can read −150 and +130 with confidence, you can read almost any price a sportsbook posts.
This guide explains how to read negative and positive odds, calculate payouts, convert a moneyline into implied probability, and spot the sportsbook’s margin, known as the vig. Every example uses hypothetical teams and odds, with every number worked out in full.
What Is a Moneyline Bet?
In sports betting, the moneyline is the market for picking a winner straight up. You choose one side, and the bet is settled on a single question: did that side win? The final margin of victory is irrelevant. A team that wins 21–20 pays exactly the same as a team that wins 42–3.
Because the two sides of a game are rarely equally likely to win, a sportsbook cannot pay both the same amount. Instead, it adjusts the payout on each side. The favorite pays less than even money and the underdog pays more, so a bet on the stronger team risks more to win less, while a bet on the weaker team risks less to win more.
On a betting board, the moneyline usually sits next to the point spread and the total for each game. A listing for a hypothetical game might read: Hawks −150, Bears +130. The minus sign marks the favorite and the plus sign marks the underdog, and the number after the sign is the price.
Moneylines are offered in almost every sport. In football, basketball and baseball they are usually two-way markets with only two possible outcomes. In soccer and some hockey markets you will also see a three-way moneyline, which adds the draw as a third outcome. Whatever the sport, the rules for reading the odds stay exactly the same.
How to Read Moneyline Odds
Every moneyline price answers one question: how much profit does a winning bet earn? The sign tells you which formula to use, and the number tells you the size of the payout. Profit is what you win on top of your stake; total return is the profit plus the stake you get back.
Negative Odds: The Favorite
A negative number is the stake needed to win $100 in profit. At −150, you must bet $150 to win $100. For any other stake, the formula is profit = stake × 100 ÷ 150. A $60 bet at −150 earns $60 × 100 ÷ 150 = $40 profit, for a total return of $100. The larger the negative number, the more you must risk to win the same $100: at −300, the required stake is $300.
Positive Odds: The Underdog
A positive number is the profit on a $100 stake. At +130, a $100 bet earns $130 profit and returns $230 in total. For any other stake, profit = stake × 130 ÷ 100. A $40 bet at +130 earns $40 × 130 ÷ 100 = $52 profit, for a total return of $92. A price of +100 is even money: a $100 bet wins $100.
How a Moneyline Bet Settles
A winning moneyline bet returns the stake plus the profit. A losing bet loses the full stake, nothing more, whatever the price. If a game is canceled or doesn’t meet the sportsbook’s conditions for action, the bet is usually voided and the stake returned. A tie in a two-way market is commonly graded as a push, with the stake refunded, but this is a house rule that varies by sportsbook.
A Moneyline Bet Example, Step by Step
Suppose a hypothetical game lists the Hawks at −150 and the Bears at +130, and two bettors each stake $100. Bettor one takes the Hawks at −150. The profit is $100 × 100 ÷ 150 = $66.67. If the Hawks win by any score, this bettor receives $166.67: the $100 stake plus $66.67 profit. If the Hawks lose, the $100 is gone.
Bettor two takes the Bears at +130. The profit is $100 × 130 ÷ 100 = $130. If the Bears win, this bettor receives $230 back. If the Bears lose, the $100 stake is lost.
Now suppose the final score is Hawks 24, Bears 23. The Hawks bet wins by a single point and pays in full, because the margin doesn’t matter on a moneyline. The Bears bet loses, even though the underdog came within one point. That same result would have covered a point spread of Bears +1.5, but a moneyline only asks who won.
Notice the asymmetry: the Hawks bettor risked $100 to win $66.67, while the Bears bettor risked $100 to win $130. That difference reflects who the sportsbook expects to win, not a better or worse bet.
Moneyline Odds to Percentage: Implied Probability and the Vig
Every moneyline can be converted into an implied probability, which is the win rate at which that bet breaks even over the long run. For negative odds, divide the number by itself plus 100: −150 becomes 150 ÷ 250 = 60.00%. For positive odds, divide 100 by the number plus 100: +130 becomes 100 ÷ 230 = 43.48%. The table below shows the profit, total return and implied probability of common prices on a $100 stake.
| Moneyline | Profit on $100 | Total return | Implied probability |
|---|---|---|---|
| −300 | $33.33 | $133.33 | 75.00% |
| −200 | $50.00 | $150.00 | 66.67% |
| −150 | $66.67 | $166.67 | 60.00% |
| −110 | $90.91 | $190.91 | 52.38% |
| +100 | $100.00 | $200.00 | 50.00% |
| +130 | $130.00 | $230.00 | 43.48% |
| +200 | $200.00 | $300.00 | 33.33% |
| +300 | $300.00 | $400.00 | 25.00% |
Add the two sides of the hypothetical Hawks–Bears game and you get 60.00% + 43.48% = 103.48%. That extra 3.48% is the vig, the sportsbook’s built-in margin. Dividing each side by 103.48% removes it and gives an estimated no-vig split of about 57.98% for the Hawks and 42.02% for the Bears. On a balanced book at these prices, the theoretical hold is about 3.36% of the money wagered.
That margin is why the average bettor loses over time. To profit on the Bears at +130, a bettor needs them to win more than 43.48% of the time, and nobody knows a team’s true probability for certain. As an assumption only: if the Bears truly won 45% of the time, a $100 bet would be worth 0.45 × $130 − 0.55 × $100 = +$3.50 on average. If they truly won 40% of the time, it would be worth 0.40 × $130 − 0.60 × $100 = −$8.00.
Common Moneyline Mistakes
Treating heavy favorites as safe money is the most common error. At −300, a bettor risks $300 to win $100, so one loss erases several wins: three winning $100 bets at −300 earn $33.33 each, about $100 in total, and a single losing $100 bet wipes that out. The price already reflects how likely the favorite is to win.
Another mistake is confusing odds with probability. A price of +200 is not a 200% chance of anything; it implies a 33.33% chance. Likewise, −150 doesn’t mean a team is 150% likely to win; it implies 60.00%.
Many bettors also ignore the vig. Because the two implied probabilities add up to more than 100%, betting both sides of the same moneyline at one sportsbook always leaves at least one outcome that loses money; it is not a free hedge. Finally, some assume every sportsbook grades ties, overtime and three-way markets the same way. They don’t.
What to Check Before Placing a Moneyline Bet
Before confirming any moneyline bet, convert the price into a break-even rate. Then ask whether the side really wins more often than that number implies, and be honest that your answer is an estimate, not a certainty.
Next, check the sportsbook’s house rules for how the market is settled: whether overtime or extra innings count, how a tie is graded, and whether a three-way market is settled on regulation time only. Confirm that the bet slip shows the side, the price and the stake you intended, because prices can move between viewing a line and submitting the bet.
Finally, set a budget before you bet and treat it as the cost of entertainment. Keep a record of every wager, never raise stakes to recover losses, and remember that the legal age and the legality of sports betting vary by state. If betting stops feeling like entertainment, the National Problem Gambling Helpline is available by call or text at 1-800-MY-RESET (1-800-697-3738).
The moneyline is the foundation for the rest of sports betting: the same American odds appear on point spreads, totals and parlays. Natural next steps are learning how point spreads change the question from “who wins?” to “by how much?”, how totals work, and why parlays multiply both the payout and the sportsbook’s margin. In every market, converting a price into a break-even rate works the same way.
Frequently Asked Questions