+173 Odds Explained
- Decimal
- 2.73
- American
- +173
- Fractional
- 173/100
- Implied probability
- 36.63%
- Polymarket
- 37¢
- $100 wins
- 173.00
- American
- +173
- Fractional
- 173/100
- Implied probability
- 36.63%
- Polymarket
- 37¢
- Profit
- 173.00
- Total return
- 273.00
2.730 decimal, +173 American, 36.63% implied probability
American odds of +173 mean
a 100 stake wins 173
. In decimal notation that is 2.73, in fractional notation 173/100, and the implied probability is 36.63%. On a prediction market the same price is a 37¢ share.
What +173 pays
A 100 stake at +173 returns 273.00 in total: your 100 back plus 173.00 profit. To win exactly 100 you would stake 57.80. The table covers the stakes people actually use.
| Stake | Profit | Total return |
|---|---|---|
| 10 | 17.30 | 27.30 |
| 25 | 43.25 | 68.25 |
| 50 | 86.50 | 136.50 |
| 100 | 173.00 | 273.00 |
| 500 | 865.00 | 1,365.00 |
| 1,000 | 1,730.00 | 2,730.00 |
Break-even and long-run results
The implied probability of +173 is 36.63%, and that number is also the break-even win rate: win more often than 36.63% 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.
| Win rate | Return on stake |
|---|---|
| 37% | 1.0% |
| 50% | 36.5% |
| 55% | 50.2% |
| 60% | 63.8% |
| 65% | 77.5% |
+173 is an underdog price: the bookmaker gives this outcome an implied chance of 36.63%, and the payout of 173.00 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 +173
If both sides of a two-way market were priced at +173, the implied probabilities would add up to -26.74% above 100%. That excess is the overround, or vig; as a share of stakes it is a -36.50% 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.
+173 on a betting exchange
Exchanges charge commission on net winnings, so the price you see is not the price you get. At 2% commission +173 is worth 2.695 decimal (+170 American); at 5% it drops to 2.644 (+164). Those are the bookmaker prices you would need to beat.
| Commission | Effective decimal | Effective American | Break-even |
|---|---|---|---|
| 2% | 2.695 | +170 | 37.10% |
| 5% | 2.644 | +164 | 37.83% |
Same price in other formats
Nearby prices
Nearby prices
Frequently asked questions
What does +173 mean in betting?
+173 is an American price. Positive numbers show the profit on a 100 stake; negative numbers show the stake needed to win 100. At +173 the implied probability is 36.63% and a 100 stake returns 273.00.
What is +173 in decimal odds?
+173 converts to 2.730 in decimal odds (usually shown as 2.73). Decimal odds are the total return per unit staked, so multiply your stake by 2.730 to get the return.
What is +173 as a fraction?
+173 is 173/100 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 +173?
A 100 stake at +173 wins 173.00 in profit and returns 273.00 including the stake. To win exactly 100 you would stake 57.80.
What win rate do I need at +173?
The break-even win rate equals the implied probability, 36.63%. Winning more often than that at this price is profitable over the long run; winning less often loses money.