equity
MathAliases: 胜率, 权益, equity
Equity is the expected percentage of the pot a hand or range wins against a specific opponent range. Equity is the core input to EV calculations.
Equity is the average percentage of the pot a current hand or range wins at immediate showdown against a specified opponent range.
Detailed Explanation
There are two types of equity to distinguish:
- Raw equity: equity at immediate showdown, ignoring future actions
- Realized equity: equity actually realized after accounting for position, betting, folds, and other dynamic factors
Example: 88 vs an opponent's wide cbet range may have 55% raw equity, but if 88 is OOP and struggles against turn barrels, its realized equity might be only 45%.
Factors that affect realized equity:
- Position (IP usually realizes more)
- SPR (stack-to-pot ratio)
- Opponent's aggression frequency
- Your bluff-catching ability
Common Use Cases
- Drawing decisions: pot odds vs equity
- Flop sizing: range-equity distribution determines bet frequency and size
- Range construction: high-equity hands as value, low-equity hands with good blockers as bluffs
Common Mistakes
- Treating raw equity as the decision criterion: in practice, almost always adjust to realized equity
- Ignoring shifts in opponent's range: loose vs tight changes the same hand's equity by 10%+