Range vs Board Analysis

What Is Range vs Board Analysis?

Range vs board analysis examines how two players' hand ranges interact with a specific community board texture. By classifying every possible combo in each range into made hand categories and draws, you can quantify which player has the stronger distribution on any given flop, turn, or river.

This is a fundamental skill in GTO poker. The player whose range connects better with the board — forming more strong made hands, more draws, or both — typically has the strategic initiative and should be betting more frequently.

How to Use This Tool

1. Enter OOP and IP ranges using standard notation, presets, or paste from GTO solvers.
2. Select three flop cards from the card picker (click to add, click a board card to remove it).
3. Optionally add turn and river cards to see how the distribution evolves.
4. Study the side-by-side comparison: which range has more top pair? More draws? More nutted hands?

Understanding the Categories

Made Hands

Hands are classified by their best made hand category. For example, a pocket pair that matches a board card is a set, while a hole card matching the highest board card is top pair. Categories like overpair (pocket pair above all board cards) and underpair (below all board cards) help distinguish the strength of pocket pairs on different textures.

Draws

Draw classifications show how many combos in each range have drawing potential. A hand can have both a made hand and a draw simultaneously — for example, top pair with a flush draw. Draw categories include flush draws (4 to a flush), open-ended straight draws (OESD, 8 outs), gutshots (4 outs), and backdoor flush draws (3 to a flush, flop only). Draws are hidden on the river since no more cards come.

Why This Matters

On a board like A♠ K♥ 7♦, a tight UTG opening range has a massive range advantage — nearly every hand connects with at least top pair or an overpair. A wide BTN defending range, while larger, has far more no-pair and weak-pair combos. This asymmetry tells us UTG should c-bet frequently and the BTN should fold or check-call rather than raise.

Conversely, on 7♣ 6♠ 5♥, the BTN's wider range containing suited connectors, small pairs, and suited gappers gives them more straights, sets, and open-ended draws. Here the BTN has the range advantage despite having the "weaker" preflop position.