Flush odds in Texas Hold'em, and why a flush beats a straight
Odds
With seven cards, a flush comes up 3.03% of the time, or 1 in 33.1 hands, against 1 in 509 in five-card poker.
- 0.20%flush with five cards
- 15.4times more common with seven cards
- 43.8%one pair, the most common Hold'em hand
Frequency with seven cards
A flush appears frequently when you hold two hole cards and see all five community cards. This frequency is significantly higher than in five-card poker, where a flush is much rarer. The extra cards increase the probability that two of your hole cards match the suit of the board or each other. As the key figures show, this makes a flush a common outcome in Hold'em compared to other variants. You should expect to see a flush regularly over a long session. The table below compares these odds directly, highlighting the gap between the two formats.
| Hand | Seven cards (Hold'em) | Odds, seven cards | Five cards |
|---|---|---|---|
| Royal flush | 0.0032% | 1 in 30,940 | 0.00015% |
| Straight flush | 0.031% | 1 in 3,217 | 0.0015% |
| Four of a kind | 0.17% | 1 in 595 | 0.024% |
| Full house | 2.6% | 1 in 38.5 | 0.14% |
| Flush | 3.0% | 1 in 33.1 | 0.20% |
| Straight | 4.6% | 1 in 21.6 | 0.39% |
| Three of a kind | 4.8% | 1 in 20.7 | 2.1% |
| Two pair | 23.5% | 1 in 4.3 | 4.8% |
| One pair | 43.8% | 1 in 2.3 | 42.3% |
| High card | 17.4% | 1 in 5.7 | 50.1% |
Comparing five-card odds
In traditional five-card poker, a flush is a rare event, occurring far less frequently than in Hold'em. With only five cards dealt, there are fewer combinations that result in matching suits. The difference is substantial, making flushes much more common in the seven-card format. This shift changes how you evaluate hand strength. In five-card games, a flush is a standout holding. In Hold'em, it is a standard result. The table above illustrates this disparity clearly. Players must adjust their expectations accordingly. A flush is not an exceptional hand in Hold'em; it is a frequent occurrence that requires careful comparison against other possible holdings.
Hand rankings and context
Despite its frequency, a flush still outranks a straight in standard hand rankings. This hierarchy holds true regardless of how often each hand appears. One pair is the most common hand in Hold'em, appearing far more often than a flush. However, a flush beats one pair. The logic relies on the difficulty of forming the hand, not just its frequency. While pairs are abundant, flushes require specific suit alignment. This balance ensures a clear hierarchy. Knowing that flushes are common helps you avoid overvaluing them. You must compare your flush against the board texture and potential straight draws. The ranking remains fixed, but the context changes with the number of cards available.
Practical implications
Over many hands, you will encounter flushes regularly. This frequency means you cannot treat every flush as a guaranteed winner. You must assess the strength of your flush relative to the board. A low flush may lose to a higher one. The probability calculations apply only when all five board cards are visible. Before the flop, the odds are different. The chance to hit a flush depends on your hole cards and the board suits. If gambling stops being fun, free help is available via support resources. Focus on the mathematical probability rather than emotional attachment to the hand. Precise evaluation leads to better decisions over time.
Questions
Why are flushes more common in Hold'em?
Hold'em uses seven cards total, providing more combinations for matching suits. This increases the probability compared to five-card poker, where fewer cards limit suit alignment opportunities.
Does a flush always beat a straight?
Yes, in standard Texas Hold'em rankings, a flush outranks a straight. This hierarchy is fixed and does not change based on the frequency of each hand appearing.
How often should I expect a flush?
Expect a flush regularly when all cards are dealt. This frequency makes it a common outcome rather than a rare exception in Hold'em.
Every figure on this page is computed by code from a standard 52-card deck, counting every possible card and checking the count a second way. See the methodology.