Pot odds tell you whether a call is profitable based on what you win right now. Implied odds go a step further: they also account for what you can win on future streets if you complete your draw. This difference turns many apparently incorrect calls into profitable decisions, and vice versa.
Mastering implied odds is key to correctly playing draws, small pairs, and any hand that needs to improve to have real value.
1. Pot Odds vs Implied Odds: The Difference
Pot odds: you compare what you pay now against what you win now.
Pot $60, opponent bets $20, your call = $20 → Total pot = $100
Pot odds = 20/100 = 20% minimum equity
Implied odds: you add the expected future winnings if you complete.
Same situation, but if you hit the draw you win $80 more on the river
Implied odds = 20 / (100 + 80) = 20/180 = 11% minimum equity
With implied odds, a call that seemed incorrect by pot odds becomes profitable. The key question is: "if I complete the draw, how much more am I going to win?"
2. When Implied Odds Are Good
Not all draws have the same implied odds. These factors increase them:
- Hidden drawIf the opponent doesn't know you have a draw, they'll pay more when you complete. A set on a dry board is more hidden than an obvious flush draw.
- Deep stacksMore money to win = better implied odds. With 20bb effective, there's not much to gain even if you complete.
- PositionIn position you can control how much goes into the pot after completing. Out of position it's harder.
- Paying opponentA calling station will pay off when you make your flush. A nit who folds when the board completes destroys your implied odds.
- Drawing to the best handA nut flush draw (with the ace) has more implied odds than a 9-high one: when you complete, the opponent will pay with lesser flushes.
3. Set Mining: The Classic Case of Implied Odds
Set mining (calling preflop with small pairs hoping to flop a set) is the clearest example of implied odds in action.
Probability of flopping a set: ~12% (1 in every 8.5 times)
For it to be profitable, the preflop call needs to be compensated by the winnings when you do flop the set.
Example with the 15x rule
Opponent raises to $10. To justify the call with 5♣5♦:
You need to win at least ~$150 when you flop the set ($10 × 15)
If effective stacks are $200 and opponent pays with overpair or top pair → profitable call
If effective stacks are $80 → marginal call or fold
The practical rule: the preflop call is profitable if effective stacks are at least 15–20× the raise size.
4. Reverse Implied Odds: When Completing Is a Trap
Reverse implied odds are the opposite concept: situations where completing your "draw" leads you to lose more money, not gain it.
Non-nut flush draw
You have 9♦8♦ on a board with 3 diamonds. You complete the flush. The opponent bets strongly. If they have the ace of diamonds, your flush loses. You'll call their bet thinking you're winning.
Set on a dangerous board
You have 6♣6♠ with a flop of 6♥7♥8♥. You have trip 6s, but the board has flush and straight possibilities. If you keep betting and face resistance, you could be paying against a better hand.
The key: before calculating implied odds, also ask whether there are reverse implied odds that cancel out the advantage. Draws that are not to the best possible hand carry significant reverse implied odds.
Conclusion
Implied odds are a natural extension of EV calculation. It's not just about whether your equity exceeds the current pot odds, but about how much total value you can extract throughout the hand. A draw with high implied odds can be a correct call even when pot odds reject it — and vice versa.