--- title: "87o Combos: Count, Blockers, Board Pairs" url: "https://georgelipoker.com/combos/87o.md" canonical_url: "https://georgelipoker.com/combos/87o" last_updated: "2026-10-21" type: "reference" summary: "87o 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/j3o.md", "https://georgelipoker.com/combos/t2s.md"] --- # 87o Combos: Count, Blockers, Board Pairs 87o 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. A fifty-two card deck deals 87o in 12 combos, 0.90% of the 1,326 two-card hands. Its place in the ranking of 169 classes is number 117, backed by 45.05% equity against a random hand. - Combos: 12 - Share of 1,326: 0.90% - Rank of 169: 117 - Equity vs random: 45.05% - This hand and stronger: 66.21% ## 87o: the 12 combos For 87o, there are 4 eights and 4 sevens, so 16 pairings, and the 4 that share a suit belong to the suited hand. That leaves 12. Every 87o you can be dealt is one of these 12 holdings. They are listed once each, higher card first. The 12 combos of 87o: 8s 7h, 8s 7d, 8s 7c, 8h 7s, 8h 7d, 8h 7c, 8d 7s, 8d 7h, 8d 7c, 8c 7s, 8c 7h, 8c 7d. ## How cards you can see change the count Known cards cannot be in an opponent's hand. For 87o, the table lists the combos left after one card of each rank is out of play. 87o combos left after one known card of each rank: | Known card | 87o combos left | | --- | --- | | Ace | 12 | | King | 12 | | Queen | 12 | | Jack | 12 | | Ten | 12 | | Nine | 12 | | Eight | 9 | | Seven | 9 | | Six | 12 | | Five | 12 | | Four | 12 | | Three | 12 | | Two | 12 | An eight or a seven 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 A pair on the board uses up two of the four cards of its rank. The 87o combos that survive are in the table, one row per rank. 87o combos left after a pair of each rank on the board: | Board pair | 87o combos left | | --- | --- | | Aces | 12 | | Kings | 12 | | Queens | 12 | | Jacks | 12 | | Tens | 12 | | Nines | 12 | | Eights | 6 | | Sevens | 6 | | Sixes | 12 | | Fives | 12 | | Fours | 12 | | Threes | 12 | | Twos | 12 | Pairing eights or sevens on the board cuts 87o to 6 combos. Every other paired board leaves the full 12. ## A worked example Take a hand of an eight and a two. Your opponent then holds one of 1,225 possible hands, and 9 of them are 87o. That is 0.73%, or 1 in 136, instead of the 0.98% (1 in 102) you get when your cards do not block it. ## How strong is 87o? Rank 117 of 169 belongs to 87o, below the middle of the ranking, on 45.05% equity against a random hand. Equity here is wins plus half of the ties across all boards. Add 87o to every hand ranked above it and you hold 878 of the 1,326 two-card hands, 66.21% of all deals. ## 87o against ranges of hands A range is a list of hands, and equity against it weights each hand by its live combos. For 87o the five ranges give 21.95% against the top 5 percent (60 combos), 30.79% against the top 10 percent (130 combos), 33.41% against the top 20 percent (264 combos), 35.43% against the top 30 percent (386 combos) and 37.03% against the top 50 percent (658 combos). 87o equity against the strongest hands: | Opponent range | Combos in range | 87o equity | | --- | --- | --- | | Top 5 percent | 60 | 21.95% | | Top 10 percent | 130 | 30.79% | | Top 20 percent | 264 | 33.41% | | Top 30 percent | 386 | 35.43% | | Top 50 percent | 658 | 37.03% | 87o is behind all five of these ranges, even the top 50 percent, so it is the underdog on average against each of them. Holding 87o removes some premium combos from an opponent's reach: of the 130 in the top 10 percent, an average of 124.00 remain. That is 6.00 combos fewer than the 130 an opponent has before you look. ## Hands next to 87o A one-place difference in rank can be a large or small gap in a direct matchup. 87o has 45.85% equity against J3o, the hand ranked number 116: it wins 45.16% of boards, ties 1.38% and loses 53.46%. It is the underdog in that matchup. 87o has 43.62% equity against T2s, the hand ranked number 118: it wins 42.66% of boards, ties 1.93% and loses 55.42%. It is the underdog in that matchup. Same ranks, other suits: 87s is the suited version, number 100 of 169 at 47.94%. 87o has 3 times as many combos as 87s and is 2.88 points weaker against a random hand. Related to 87o: - [J3o combos](https://georgelipoker.com/combos/j3o.md) - [T2s combos](https://georgelipoker.com/combos/t2s.md) - [87s combos](https://georgelipoker.com/combos/87s.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 87o combos **How many combos of 87o are there?** 12 combos, which is 0.90% of the 1,326 two-card starting hands, so you are dealt 87o about 1 time in 110.5. **How many 87o combos are left if I hold an eight?** 9 combos of 87o remain out of 12. With a two as your other card, an opponent has it about 1 time in 136. **Is 87o stronger than 87s?** No: 87o has 45.05% equity against a random hand and ranks number 117, while 87s has 47.94% and ranks number 100. 87s has 4 combos to 87o's 12. ## How this was computed All 1,326 two-card holdings were grouped into classes, and the 87o 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) - [J3o Combos: Count, Blockers, Board Pairs](https://georgelipoker.com/combos/j3o.md) - [T2s Combos: Count, Blockers, Board Pairs](https://georgelipoker.com/combos/t2s.md)