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+177 Odds Explained

Decimal
2.77
American
+177
Fractional
177/100
Implied probability
36.10%
Polymarket
36¢
$100 wins
177.00
Inputs
Results
Decimal odds2.770
American
+177
Fractional
177/100
Implied probability
36.10%
Polymarket
36¢
Profit
177.00
Total return
277.00

2.770 decimal, +177 American, 36.10% implied probability

+177 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: 2.77 decimal, 177/100 fractional, 36.10% implied probability, 36¢ on Polymarket.

What +177 pays

A 100 stake at +177 returns 277.00 in total: your 100 back plus 177.00 profit. To win exactly 100 you would stake 56.50. The table covers the stakes people actually use.

Payout by stake
StakeProfitTotal return
1017.7027.70
2544.2569.25
5088.50138.50
100177.00277.00
500885.001,385.00
1,0001,770.002,770.00

Break-even and long-run results

The implied probability of +177 is 36.10%, and that number is also the break-even win rate: win more often than 36.10% 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
36%-0.3%
50%38.5%
55%52.4%
60%66.2%
65%80.1%

+177 is an underdog price: the bookmaker gives this outcome an implied chance of 36.10%, and the payout of 177.00 on 100 reflects it. Underdogs in this band are where public money and bookmaker margin often disagree, so it pays to compare prices across books before taking one.

The vig at +177

If both sides of a two-way market were priced at +177, the implied probabilities would add up to -27.80% above 100%. That excess is the overround, or vig; as a share of stakes it is a -38.50% 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.

+177 on a betting exchange

Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +177 is worth 2.735 decimal (+173 American); at 5% it drops to 2.681 (+168). Those are the bookmaker prices you would need to beat.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%2.735+17336.57%
5%2.681+16837.29%

Same price in other formats

Same price in other formats

Nearby prices

Nearby prices

  • +167 · 2.67 · 37.5%
  • +172 · 2.72 · 36.8%
  • +175 · 2.75 · 36.4%
  • +176 · 2.76 · 36.2%
  • +178 · 2.78 · 36.0%
  • +179 · 2.79 · 35.8%
  • +182 · 2.82 · 35.5%
  • +187 · 2.87 · 34.8%

Frequently asked questions

What does +177 mean in betting?

+177 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +177 the implied probability is 36.10% and a 100 stake returns 277.00.

What is +177 in decimal odds?

+177 converts to 2.770 in decimal odds (usually shown as 2.77). Decimal odds are the total return per unit staked, so multiply your stake by 2.770 to get the return.

What is +177 as a fraction?

+177 is 177/100 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 +177?

A 100 stake at +177 wins 177.00 in profit and returns 277.00 including the stake. To win exactly 100 you would stake 56.50.

What win rate do I need at +177?

The break-even win rate equals the implied probability, 36.10%. Winning more often than that at this price is profitable over the long run; winning less often loses money.