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Odds explained · odds-on price

−400 odds: payout and meaning

A minus sign means an odds-on price, the kind usually offered on the favorite. −400 means you have to stake $400.00 to win $100 in profit; a $100 bet wins $25.00 and returns $125.00 including your stake.

−400 at a glanceexact math, no bookmaker margin added
American−400
Fractional1/4
Decimal1.25
Implied probability80.00%
$100 wins$25.00
To win $100, stake$400.00

−400 payout chart

StakeProfit if it winsTotal payout
$10$2.50$12.50
$20$5.00$25.00
$25$6.25$31.25
$50$12.50$62.50
$100$25.00$125.00
$200$50.00$250.00
$500$125.00$625.00
$1,000$250.00$1,250.00

Payout = stake + profit. A losing bet loses the stake; a push (tie, where offered) returns it. In pounds: £100 wins £25.00. Any stake: bet calculator.

How much to bet to win a set amount at −400

To win (profit)Stake needed
$10$40.00
$50$200.00
$100$400.00
$500$2,000.00

Break-even win rate at −400

The implied probability of −400 is about 80.00% (1 ÷ the exact decimal odds, shown rounded). That is the break-even win rate: if you bet this price many times on win-or-lose bets, you need to win more often than that to come out ahead. Whether a −400 bet is good value depends only on whether your honest estimate of the chance beats that number — the EV calculator does the comparison.

−400 in a parlay

Two −400 legs parlayed combine to decimal odds of ≈ 1.56 (−178, rounded): a $100 two-leg parlay pays $156.25 if both win. Three legs: decimal ≈ 1.95 (−105, rounded), paying $195.31 on $100. For independent selections from different events, those prices imply a break-even chance of about 51.20% for all three winning — an implied figure that includes each price’s margin, not a forecast; bookmakers may refuse or reprice related selections. Payouts use the exact, unrounded combined odds. Build your own with the parlay calculator.

Compare nearby odds

OddsFractionalDecimalImplied probability$100 wins
−10001/101.1090.91%$10.00
−5001/51.2083.33%$20.00
−4001/41.2580.00%$25.00
−3001/31.3375.00%$33.33
−2502/51.4071.43%$40.00

Full betting odds chart → · How betting odds work · 18+ — odds describe a price, not a prediction or a recommendation to bet.

FAQ

Frequently asked questions

What do −400 odds mean?

A minus sign means an odds-on price, the kind usually offered on the favorite. −400 means you have to stake $400.00 to win $100 in profit; a $100 bet wins $25.00 and returns $125.00 including your stake.

How much does a $100 bet at −400 pay?

It wins $25.00 in profit. With your $100 stake back, the total payout is $125.00. A $10 bet wins $2.50.

What is the implied probability of −400?

About 80.00% (rounded): 1 ÷ the exact decimal odds. It is also the win rate you need just to break even at this price over many win-or-lose bets. Bookmaker prices include a margin, so the market’s fair estimate is usually a little lower.

What is −400 in fractional and decimal odds?

Fractional 1/4, and decimal 1.25 (rounded to two places). They describe the same price. The odds converter switches between formats for any value.

Does −400 mean favorite?

Usually, but not by definition. −400 is odds-on: the profit is less than the stake and the price implies more than 50% (about 80.00%). Who is the favorite depends on the other prices: both sides of a market can be odds-on at once (for example −110 / −110) because of the bookmaker’s margin.