KQs vs 98s king-queen suited against nine-eight suited
All-in before the flop, king-queen suited wins 62.5% of boards, nine-eight suited wins 36.8%, and 0.7% split the pot. KQs is a 1.69 to 1 favourite. These are not samples: the engine dealt every one of the 1,712,304 possible five-card boards for each of the 2 ways the suits can line up, and the working is below.
Equity counts a split pot as half a win for each side, which is why the two equities add to 100% and the two win rates do not.
Two higher cards against two lower cards
Neither hand is made. The higher cards win most boards where nothing happens, or where both hands pair one card. The lower hand wins when it pairs and the higher one does not, or makes a straight or flush, so suited and connected lower cards do noticeably better than their ranks suggest.
Suits change it by 3.07 points
There are 16 ways to deal KQs against 98s without the two hands sharing a card, and they fall into 2 patterns once you ignore which suit is which. Best case for KQs is 65.16% (for example K♣Q♣ against 9♣8♣), worst is 62.09% (K♣Q♣ against 9♦8♦). The headline number is the average over all 16, weighted by how many deals share each pattern.
| Example deal | Suits in common | Deals like it | KQs wins | Split | 98s wins | KQs equity |
|---|---|---|---|---|---|---|
| K♣Q♣ vs 9♣8♣ | K–9, K–8, Q–9, Q–8 | 4 of 16 | 1,109,087 | 13,342 | 589,875 | 65.16% |
| K♣Q♣ vs 9♦8♦ | none | 12 of 16 | 1,057,525 | 11,328 | 643,451 | 62.09% |
Click any deal to run it in the equity calculator, which counts the same boards in your browser, or add a third hand, a flop or a dead card to it.
How each hand wins
The made hand the winner shows down with, as a share of all boards. KQs wins most often with pair (24.9% of boards); 98s with two pair (12.0%). Splits happen when both hands play the same five cards or make the same hand, mostly straights.
| Made hand | KQs wins with it | 98s wins with it | Split with it |
|---|---|---|---|
| High card | 3.86% | 0.00% | – |
| Pair | 24.89% | 7.67% | – |
| Two pair | 17.47% | 11.99% | 0.20% |
| Three of a kind | 3.63% | 2.81% | – |
| Straight | 4.11% | 6.86% | 0.21% |
| Flush | 6.07% | 5.06% | 0.17% |
| Full house | 2.24% | 2.07% | 0.11% |
| Four of a kind | 0.14% | 0.12% | 0.00% |
| Straight flush | 0.10% | 0.21% | 0.00% |
| Total | 62.51% | 36.80% | 0.69% |
When calling with 98s is right
If you call an all-in of S with 98s and know you are up against exactly KQs, you win 37.14% of a pot that holds 2S plus whatever dead money D was already in the middle (blinds, antes, earlier bets). Calling breaks even when 37.14% × (2S + D) = S, so D ÷ S = 1 ÷ 0.3714 − 2 = 0.692. A 10 bb shove needs at least 6.9 bb of dead money before calling it with 98s stops losing chips. Nobody shows you their hand, though: against a real shove you are calling a range, and the push/fold charts already account for it.
Open this as a spot: 98s (dealt as 9♦8♦, the most common suit pattern) facing a 10 bb all-in with 2.5 bb already in the middle, against a range of exactly KQs. The calculator samples runouts rather than dealing all of them, so expect its equity to land within a few tenths of a point of the exact figure for that deal. Change the pot, the bet or the range and it reprices.
Each hand has its own page with its equity against all 169 starting hands and its push/fold range at every stack depth.
More with KQs or 98s
| Matchup | First hand | Split | Second hand | Equity bar |
|---|---|---|---|---|
| KQs vs TT | 46.3% | 0.4% | 53.7% | |
| AA vs KQs | 82.9% | 0.4% | 17.1% | |
| KK vs 98s | 78.3% | 0.4% | 21.7% | |
| A2o vs KQs | 54.4% | 0.6% | 45.6% |
Other overs vs unders matchups
| Matchup | First hand | Split | Second hand | Equity bar |
|---|---|---|---|---|
| AKo vs QJs | 61.1% | 0.5% | 38.9% | |
| AKo vs JTs | 59.5% | 0.5% | 40.5% | |
| AKo vs T9s | 59.5% | 0.4% | 40.5% | |
| AKo vs 87s | 58.8% | 0.4% | 41.2% | |
| AKo vs 72o | 67.6% | 0.5% | 32.4% | |
| AQo vs JTs | 59.7% | 0.5% | 40.3% |
- Exhaustive, not sampled. With four cards dealt, 48 remain, and there are C(48, 5) = 1,712,304 five-card boards. For each suit pattern our Rust engine (the same WebAssembly file the trainer runs) evaluated both seven-card hands on every board and counted wins, splits and losses. The board counts in the suit table are exact; anyone with an enumerator can reproduce them digit for digit.
- Suit patterns. Two deals are the same pattern when one becomes the other by renaming suits (clubs to hearts, say), which cannot change who wins. Each pattern is enumerated once and weighted by how many of the 16 deals it stands for.
- Cross-check. The site's independent Monte Carlo matrix (200,000 random boards per matchup, used on the starting-hand pages) has KQs at 62.85% here, 0.01 points from the exact figure. The build fails if any matchup disagrees by more than 0.4 points.
- All-in preflop only. This is the equity when the money goes in before the flop and five cards are dealt with no more decisions. It says nothing about how the hands play when there is betting left.
- Raw data: kqs-vs-98s.json and the summary matchups.json, built by
tools/build-matchups.mjs.