🌊 Board texture: who wins on which flop
Dry and wet flops in numbers: how often opponents have a straight, a set or a strong draw · Advanced
The texture of the flop decides how expensive a hand will get and who's the favorite in it. This lesson has exact numbers: how often a random hand has a set on K-7-2, a straight on 9-8-7, and how often one of five opponents has something strong — plus why a tight range wins on ace-high flops and loses on low connected ones.
Dry and wet boards
Texture is how much the board helps hands. In Omaha everyone has four cards, so on connected and suited boards someone almost always has a straight, a flush or a big draw.
The engine's numbers for one random opponent hand:
— K♥7♦2♣ (dry flop): a set 4.4% of the time, two pair 10.4%, no straights or flush draws at all;
— 9♥8♥7♣ (wet): a made straight already 19%, a flush draw 21%, a straight draw with 8+ outs 21%.
Now six players at the table. On K♥7♦2♣ at least one of five opponents has a set 21.1% of the time. On 9♥8♥7♣ one of the five has a made straight 68% of the time, and something strong (a set, a straight, a big draw) 99%.
How to read texture
In tasks, texture is scored in points:
— suits: three cards of one suit (monotone) — +3, two of one suit — +1, rainbow — 0;
— connectedness: three different cards within five ranks (like 9-8-6) — +2, two cards adjacent or one apart — +1;
— a paired board — −1.
Total: 1 or less — dry, 2 — medium, 3 or more — wet.
A monotone flop like A♥8♥3♥ is a special case: 18% of random hands already have a made flush, and one of five opponents has one 68% of the time. Without a flush and without the ace or king of that suit, betting big on such a flop is dangerous.
One hand on different boards
A♠A♣7♠2♣ vs. J♦10♦9♣8♣:
— on a K♣6♦2♥ flop the aces have 78%;
— on a 9♥7♥6♦ flop — only 3.4%: the rundown already has a straight, and the aces have almost nothing to chase.
The same holds for ranges. A tight range (VPIP 15) against a loose one (VPIP 50) has 55.7% preflop. On an A♥K♦7♣ flop the tight player's edge grows to 62.5%: his range has more aces and kings. But on 7♥6♦5♣ the tight range is already an underdog — 47%: low connected cards hit a wide range more often.
Hence the practical rule: bet more often on flops that suit your range better, and more carefully on those that suit your opponent's.
What to do with this
On a dry board a strong hand is often already best and has little to fear: a set on K♥7♦2♣ can be played aggressively, opponents have almost nothing to catch up with.
On a wet board even a made straight isn't the nuts in equity terms: against a set with a flush draw it can be an underdog (more on this in the next lesson, on the nuts). Decide how much to bet based on what exactly can outdraw you, not just on what you already have.
Practice: 10 flops — name the texture.