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+197 Odds Explained

Decimal
2.97
American
+197
Fractional
197/100
Implied probability
33.67%
Polymarket
34¢
$100 wins
197.00
Inputs
Results
Decimal odds2.970
American
+197
Fractional
197/100
Implied probability
33.67%
Polymarket
34¢
Profit
197.00
Total return
297.00

2.970 decimal, +197 American, 33.67% implied probability

+197 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: 2.97 decimal, 197/100 fractional, 33.67% implied probability, 34¢ on Polymarket.

What +197 pays

A 100 stake at +197 returns 297.00 in total: your 100 back plus 197.00 profit. To win exactly 100 you would stake 50.76. The table covers the stakes people actually use.

Payout by stake
StakeProfitTotal return
1019.7029.70
2549.2574.25
5098.50148.50
100197.00297.00
500985.001,485.00
1,0001,970.002,970.00

Break-even and long-run results

The implied probability of +197 is 33.67%, and that number is also the break-even win rate: win more often than 33.67% 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
34%1.0%
50%48.5%
55%63.4%
60%78.2%
65%93.1%

+197 is an underdog price: the bookmaker gives this outcome an implied chance of 33.67%, and the payout of 197.00 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 +197

If both sides of a two-way market were priced at +197, the implied probabilities would add up to -32.66% above 100%. That excess is the overround, or vig; as a share of stakes it is a -48.50% 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.

+197 on a betting exchange

Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +197 is worth 2.931 decimal (+193 American); at 5% it drops to 2.871 (+187). Those are the bookmaker prices you would need to beat.

Effective odds on an exchange
CommissionEffective decimalEffective AmericanBreak-even
2%2.931+19334.12%
5%2.871+18734.83%

Same price in other formats

Nearby prices

Nearby prices

  • +187 · 2.87 · 34.8%
  • +192 · 2.92 · 34.2%
  • +195 · 2.95 · 33.9%
  • +196 · 2.96 · 33.8%
  • +198 · 2.98 · 33.6%
  • +199 · 2.99 · 33.4%
  • +202 · 3.02 · 33.1%
  • +207 · 3.07 · 32.6%

Frequently asked questions

What does +197 mean in betting?

+197 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +197 the implied probability is 33.67% and a 100 stake returns 297.00.

What is +197 in decimal odds?

+197 converts to 2.970 in decimal odds (usually shown as 2.97). Decimal odds are the total return per unit staked, so multiply your stake by 2.970 to get the return.

What is +197 as a fraction?

+197 is 197/100 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 +197?

A 100 stake at +197 wins 197.00 in profit and returns 297.00 including the stake. To win exactly 100 you would stake 50.76.

What win rate do I need at +197?

The break-even win rate equals the implied probability, 33.67%. Winning more often than that at this price is profitable over the long run; winning less often loses money.