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+2500 Odds Explained

Decimal
26.00
American
+2,500
Fractional
25/1
Implied probability
3.85%
Polymarket
4¢
$100 wins
2,500.00
Inputs
Results
Decimal odds26.000
American
+2,500
Fractional
25/1
Implied probability
3.85%
Polymarket
4¢
Profit
2,500.00
Total return
2,600.00

26.000 decimal, +2,500 American, 3.85% implied probability

+2500 is an American price:

the plus sign marks an underdog, and the number is the profit on a 100 stake

. Every other format describes the same chance: 26.00 decimal, 25/1 fractional, 3.85% implied probability, 4¢ on Polymarket.

What +2500 pays

A 100 stake at +2500 returns 2,600.00 in total: your 100 back plus 2,500.00 profit. To win exactly 100 you would stake 4.00. The table covers the stakes people actually use.

Payout by stake
StakeProfitTotal return
10250.00260.00
25625.00650.00
501,250.001,300.00
1002,500.002,600.00
50012,500.0013,000.00
1,00025,000.0026,000.00

Break-even and long-run results

The implied probability of +2500 is 3.85%, and that number is also the break-even win rate: win more often than 3.85% of the time at this price and you profit in the long run, win less often and you lose. The table shows the return on stake at a few win rates, including the break-even rate itself.

Return on stake by long-run win rate
Win rateReturn on stake
4%4.0%
50%1,200.0%
55%1,330.0%
60%1,460.0%
65%1,590.0%

+2500 is a longshot. The bookmaker prices the outcome at 3.85%, and the payout of 2,500.00 per 100 staked is the compensation for how rarely it lands. Longshots carry more margin than any other part of the market, which is why devigging methods disagree most at prices like this one.

The vig at +2500

If both sides of a two-way market were priced at +2500, the implied probabilities would add up to -92.31% above 100%. That excess is the overround, or vig; as a share of stakes it is a -1,200.00% margin for the bookmaker. Removing it leaves fair odds of 2.00 decimal ( +100) on each side. Use the devig calculator to do the same for any market.

+2500 on a betting exchange

Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +2500 is worth 25.500 decimal (+2,450 American); at 5% it drops to 24.750 (+2,375). Those are the bookmaker prices you would need to beat.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%25.500+2,4503.92%
5%24.750+2,3754.04%

Same price in other formats

Same price in other formats

Nearby prices

Nearby prices

Frequently asked questions

What does +2500 mean in betting?

+2500 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +2500 the implied probability is 3.85% and a 100 stake returns 2,600.00.

What is +2500 in decimal odds?

+2500 converts to 26.000 in decimal odds (usually shown as 26.00). Decimal odds are the total return per unit staked, so multiply your stake by 26.000 to get the return.

What is +2500 as a fraction?

+2500 is 25/1 in fractional odds, the traditional bookmaker notation where the top number is profit and the bottom number is stake.

How much do I win on a 100 bet at +2500?

A 100 stake at +2500 wins 2,500.00 in profit and returns 2,600.00 including the stake. To win exactly 100 you would stake 4.00.

What win rate do I need at +2500?

The break-even win rate equals the implied probability, 3.85%. Winning more often than that at this price is profitable over the long run; winning less often loses money.