What Are the Odds of Flush Over Flush?
Two players both flopping a flush in the same suit is a genuine rarity: about 1 in 583 deals at a 9-handed table (and 1 in 1,359 at 6-max), assuming everyone sees the flop.
The odds
| Measured as | Probability | Odds | Per 100 hands |
|---|---|---|---|
| Somewhere at a 9-handed table, per dealheadline | 0.172% | 1 in 583 | 0.17 |
| Somewhere at a 6-max table, per deal | 0.074% | 1 in 1,359 | 0.07 |
| Given both players already hold two of the same suit | 0.486% | 1 in 206 | — |
What we measured
Flush over flush on the flop needs a monotone flop (three cards of one suit) and two different players each holding two more cards of that same suit — so both complete a five-card flush the moment the flop lands. All flopped flushes on a given board share its suit, so the higher two hole cards win. The per-deal figures assume every player sees the flop.
How it was calculated
Monte Carlo for the per-deal table figures. Exact combinatorics for the conditional figure below.
Computed 2026-07-12 using app/lib/poker-eval.js — the same 7-card evaluator behind /tools/odds-calculator. Want to test a specific matchup? Run it through the odds & equity calculator.
Two players both flopping a flush in the same suit is a genuine rarity: about 1 in 583 deals at a 9-handed table (and 1 in 1,359 at 6-max), assuming everyone sees the flop.
https://pokerpro.tools/odds/flush-over-flushDrop it in your poker chat, home-game thread, or the next bad-beat argument.
Frequently asked questions
How rare is flush over flush?+
Flopped flush over flush turns up about 1 in 583 deals at a full 9-handed table (assuming everyone sees the flop) — rarer than set over set because it needs a three-suit flop plus two players each sitting on two more of that suit.
What are the odds if we both already have two of the same suit?+
If two players each already hold two cards of the same suit, the flop brings three more of that suit — giving both a flush — about 0.49% of the time (1 in 206).