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+880 Odds Explained

Decimal
9.80
American
+880
Fractional
44/5
Implied probability
10.20%
Polymarket
10¢
$100 wins
880.00
Inputs
Results
Decimal odds9.800
American
+880
Fractional
44/5
Implied probability
10.20%
Polymarket
10¢
Profit
880.00
Total return
980.00

9.800 decimal, +880 American, 10.20% implied probability

+880 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: 9.80 decimal, 44/5 fractional, 10.20% implied probability, 10¢ on Polymarket.

What +880 pays

A 100 stake at +880 returns 980.00 in total: your 100 back plus 880.00 profit. To win exactly 100 you would stake 11.36. The table covers the stakes people actually use.

Payout by stake
StakeProfitTotal return
1088.0098.00
25220.00245.00
50440.00490.00
100880.00980.00
5004,400.004,900.00
1,0008,800.009,800.00

Break-even and long-run results

The implied probability of +880 is 10.20%, and that number is also the break-even win rate: win more often than 10.20% 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
10%-2.0%
50%390.0%
55%439.0%
60%488.0%
65%537.0%

With an implied chance of 10.20%, a bet at +880 is expected to lose most of the time and to pay 880.00 on 100 when it does not. Outright markets, correct scores and big upsets are where these prices appear, and they are the prices bookmakers shade the hardest.

The vig at +880

If both sides of a two-way market were priced at +880, the implied probabilities would add up to -79.59% above 100%. That excess is the overround, or vig; as a share of stakes it is a -390.00% 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.

+880 on a betting exchange

Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +880 is worth 9.624 decimal (+862 American); at 5% it drops to 9.360 (+836). Those are the bookmaker prices you would need to beat.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%9.624+86210.39%
5%9.360+83610.68%

Same price in other formats

Nearby prices

Nearby prices

  • +830 · 9.30 · 10.8%
  • +855 · 9.55 · 10.5%
  • +870 · 9.70 · 10.3%
  • +875 · 9.75 · 10.3%
  • +885 · 9.85 · 10.2%
  • +890 · 9.90 · 10.1%
  • +905 · 10.05 · 10.0%
  • +930 · 10.30 · 9.7%

Frequently asked questions

What does +880 mean in betting?

+880 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +880 the implied probability is 10.20% and a 100 stake returns 980.00.

What is +880 in decimal odds?

+880 converts to 9.800 in decimal odds (usually shown as 9.80). Decimal odds are the total return per unit staked, so multiply your stake by 9.800 to get the return.

What is +880 as a fraction?

+880 is 44/5 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 +880?

A 100 stake at +880 wins 880.00 in profit and returns 980.00 including the stake. To win exactly 100 you would stake 11.36.

What win rate do I need at +880?

The break-even win rate equals the implied probability, 10.20%. Winning more often than that at this price is profitable over the long run; winning less often loses money.