Range vs range equity calculator
Enter both ranges (standard notation: 22+, ATs+, A5s-A2s, AJo+) and any board to get range-vs-range equity, tie rate and a 95% confidence interval within seconds. Blockers are removed automatically; identical inputs always reproduce identical results.
Methodology
Methodology: deterministic seeded Monte Carlo (400k samples by default); the evaluator is triple-validated against lib/poker-equity.ts exhaustive enumeration and the matchup matrix engine (single-combo scenarios reconcile within ±0.5pp — see automated tests). Range notation parsing is shared with the charts page.
Educational use; not betting advice.
FAQ
Which range notations are supported?
Pair ranges (22+, 77-33), suited/offsuit kicker ranges (ATs+, A5s-A2s, AJo+) and single hands (T9s, AJo, 55), comma or space separated — the same parser as our charts page.
Are results exact or simulated?
Range-vs-range uses deterministic Monte Carlo (identical inputs give identical results) with a 95% CI shown; single-combo scenarios are reconciled against our exhaustive matrix (1,712,304 boards per pairing) in automated tests.
How are blockers handled?
Board cards and sampled opponent holdings are removed from the combo pools in real time; the “live combos” readout shows the post-blocker count for each range.