--- title: "54o Combos: Count, Blockers, Board Pairs" url: "https://georgelipoker.com/combos/54o.md" canonical_url: "https://georgelipoker.com/combos/54o" last_updated: "2026-10-21" type: "reference" summary: "54o is 12 combos of the 1,326 starting hands (0.90%). See how a known card or a board pair changes the count, plus its rank and equity." related: ["https://georgelipoker.com/combos.md", "https://georgelipoker.com/combos/72s.md", "https://georgelipoker.com/combos/64o.md"] --- # 54o Combos: Count, Blockers, Board Pairs 54o is 12 combos of the 1,326 starting hands (0.90%). See how a known card or a board pair changes the count, plus its rank and equity. There are 12 combos of 54o, which is 0.90% of the 1,326 two-card hands a 52-card deck can deal. It ranks number 153 of 169 hand classes, with 38.16% equity against a random hand. - Combos: 12 - Share of 1,326: 0.90% - Rank of 169: 153 - Equity vs random: 38.16% - This hand and stronger: 87.93% ## 54o: the 12 combos For 54o, there are 4 fives and 4 fours, so 16 pairings, and the 4 that share a suit belong to the suited hand. That leaves 12. The 12 holdings of 54o are listed below, higher card first. Nothing is left out and nothing appears twice. The 12 combos of 54o: 5s 4h, 5s 4d, 5s 4c, 5h 4s, 5h 4d, 5h 4c, 5d 4s, 5d 4h, 5d 4c, 5c 4s, 5c 4h, 5c 4d. ## How cards you can see change the count Combos shrink when cards are visible. The rows below give the 54o count left after one known card of each rank, from the ace down to the two. 54o combos left after one known card of each rank: | Known card | 54o combos left | | --- | --- | | Ace | 12 | | King | 12 | | Queen | 12 | | Jack | 12 | | Ten | 12 | | Nine | 12 | | Eight | 12 | | Seven | 12 | | Six | 12 | | Five | 9 | | Four | 9 | | Three | 12 | | Two | 12 | A five or a four you can see leaves 9 of 12, so 25% of the combos are gone. Any card of a different rank leaves all 12 combos in play. ## When the board is paired Now put two cards of the same rank on the board. This table counts the combos of 54o that are still possible after a board pair of each rank. 54o combos left after a pair of each rank on the board: | Board pair | 54o combos left | | --- | --- | | Aces | 12 | | Kings | 12 | | Queens | 12 | | Jacks | 12 | | Tens | 12 | | Nines | 12 | | Eights | 12 | | Sevens | 12 | | Sixes | 12 | | Fives | 6 | | Fours | 6 | | Threes | 12 | | Twos | 12 | Pairing fives or fours on the board cuts 54o to 6 combos. Every other paired board leaves the full 12. ## A worked example Walk through it once. Your hole cards: a five and a two. Your opponent's possible hands: 1,225. Of those, 54o is 9, so the chance is 9 / 1,225 = 0.73%. With no blocking card it would be 12 / 1,225 = 0.98%. ## How strong is 54o? The ranking puts 54o at number 153 out of 169, among the 30 weakest classes. Its equity against a random hand is 38.16%, with a tie counted as half a win. A range that runs from the top of the ranking down to 54o is 1,166 combos, 87.93% of all two-card hands, and 1,154 of them rank above 54o itself. ## 54o against ranges of hands Here is how 54o fares against five ranges that run from the top of the ranking down. It scores 21.47% against the top 5 percent (60 combos), 28.78% against the top 10 percent (130 combos), 32.31% against the top 20 percent (264 combos), 33.39% against the top 30 percent (386 combos) and 35.08% against the top 50 percent (658 combos). 54o equity against the strongest hands: | Opponent range | Combos in range | 54o equity | | --- | --- | --- | | Top 5 percent | 60 | 21.47% | | Top 10 percent | 130 | 28.78% | | Top 20 percent | 264 | 32.31% | | Top 30 percent | 386 | 33.39% | | Top 50 percent | 658 | 35.08% | 54o is behind all five of these ranges, even the top 50 percent, so it is the underdog on average against each of them. The top 10 percent is 130 combos before you look at your cards. With 54o in your hand, an average of 130.00 are left. That is no loss at all: 54o blocks none of those hands. ## Hands next to 54o Rank is a number on a list, and the matchups with the neighbours show how close or far apart the hands really are. 54o has 45.54% equity against 72s, the hand ranked number 152: it wins 41.64% of boards, ties 7.79% and loses 50.56%. It is the underdog in that matchup. 54o has 37.64% equity against 64o, the hand ranked number 154: it wins 24.70% of boards, ties 25.88% and loses 49.43%. It is the underdog in that matchup. 54o has 3 times as many combos as 54s and is 3.30 points weaker against a random hand, and 54s is the suited twin, number 136 of 169 with 41.45% equity. Related to 54o: - [72s combos](https://georgelipoker.com/combos/72s.md) - [64o combos](https://georgelipoker.com/combos/64o.md) - [54s combos](https://georgelipoker.com/combos/54s.md) - [All starting hands](https://georgelipoker.com/combos.md) - [Hand ranking calculator](https://georgelipoker.com/tools/hand-ranking-calculator.md) - [Poker equity calculator](https://georgelipoker.com/tools/equity-calculator.md) ## Questions about 54o combos **How many combos of 54o are there?** 12 combos, which is 0.90% of the 1,326 two-card starting hands, so you are dealt 54o about 1 time in 110.5. **How many 54o combos are left if I hold a five?** 9 combos of 54o remain out of 12. With a two as your other card, an opponent has it about 1 time in 136. **Is 54o stronger than 54s?** No: 54o has 38.16% equity against a random hand and ranks number 153, while 54s has 41.45% and ranks number 136. 54s has 4 combos to 54o's 12. ## How this was computed All 1,326 two-card holdings were grouped into classes, and the 54o group was counted. The blocker rows drop each combo containing a visible card; the board-pair rows do it for a visible pair. Exact matchups, counted over all 1,712,304 boards, supply the rank and equity. A tie counts as half, and ranges are weighted by the combos that remain. Source: GeorgeLiPoker's own count of the 52-card deck and its preflop matchup table. ## Related - [Poker Combos: Count Every Starting Hand](https://georgelipoker.com/combos.md) - [72s Combos: Count, Blockers, Board Pairs](https://georgelipoker.com/combos/72s.md) - [64o Combos: Count, Blockers, Board Pairs](https://georgelipoker.com/combos/64o.md)