Straight flush odds in Texas Hold'em
Odds
With seven cards, a straight flush comes up 0.031% of the time, or 1 in 3,217 hands, against 1 in 64,974 in five-card poker.
- 0.0015%straight flush with five cards
- 20.2times more common with seven cards
- 43.8%one pair, the most common Hold'em hand
Probability in Hold'em
A straight flush appears far more often in Texas Hold'em than in five-card poker. The table below shows the specific rates for both formats. With seven cards available, the chance of holding a straight flush rises significantly compared to the five-card variant. This difference stems from having two hole cards and five community cards to combine. Players see all five board cards before assessing their final hand. The extra cards increase the likelihood of forming a strong combination. This probability applies only after the river card is dealt. Early streets offer fewer combinations, so the final count matters most. The ratio between the two formats highlights the advantage of extra cards. It is not a guarantee of winning, but a statistical reality of the game structure.
| 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% |
Frequency Over Many Hands
Over thousands of hands, straight flushes remain rare events. The key figures show how often they occur relative to other hands. One pair is the most common outcome, appearing far more frequently than a straight flush. This contrast helps players gauge the strength of their holdings. A straight flush beats almost every other hand type. Its rarity contributes to its high value in showdowns. Players should expect to see one pair much more often. The straight flush remains a standout result when it does appear. Consistency in winning relies on understanding these frequency differences. Knowing which hands are common helps in decision-making. The math does not change based on skill, only on card distribution.
Hand Rankings Context
Straight flushes sit near the top of the poker hierarchy. They beat three of a kind and two pair. Only a royal flush, which is a specific type of straight flush, beats them. This ranking reflects the difficulty of forming such a hand. The table above compares the odds across different formats. Hold'em offers better chances due to the extra cards. Five-card poker requires a tighter combination from fewer cards. Players must weigh the probability against the potential payoff. High-value hands do not appear in every session. The hierarchy is fixed and independent of player skill. It serves as a baseline for comparing hand strength. If gambling stops being fun, free help is available at support resources.
Questions
Why is a straight flush more common in Hold'em?
Hold'em uses seven cards total, allowing more combinations to form a straight flush. Five-card poker uses only five cards, limiting possible outcomes. The extra community cards increase the chance of hitting the required sequence.
Does seeing all board cards change the odds?
Yes, the stated probabilities assume all five community cards are visible. Early streets have fewer cards, so the final count reflects the complete set of available combinations for the player.
How rare is a straight flush compared to one pair?
One pair is significantly more common than a straight flush. The key figures show one pair appears in nearly half of all hands, while straight flushes occur in a small fraction of deals.
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.