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Nut advantage
Who holds more of the very strongest hands on a board, how that differs from range advantage, and why it decides how big to bet.
A reference page: an idea the course assumes, without practice or progress. Lessons link here the first time they use the term.
On this page
- Tell nut advantage apart from range advantage.
- Work out which range holds more sets, straights and other top hands on a board.
- Link a nut advantage to big bets and overbets.
- Explain why an even share of the nuts points to smaller bets.
The top of the range
Range advantage averages everything. Nut advantage looks only at the top: of the strongest hands possible on this board, whose range holds more of them?
Rail measures it the same way everywhere. After a flop, 49 × 48 / 2 = 1,176 two-card holdings are left. Rank them by what they make, keep the strongest tenth, about 118 of them, and ask what share of each player's range lands in that group.
Ahead on average, level at the top
The two measures can disagree. An under-the-gun open is full of big pairs and big aces, so it stays ahead on average on almost every flop. But a board like J♠T♠9♠ is made of exactly the cards the big blind's suited connectors and suited broadways need.
Nut advantage sets the size
Range advantage says how often to bet; nut advantage says how big. A big bet or an overbet puts a lot of money in, and it only works if enough of the betting range is still ahead when called. That takes strong hands, and only the range with more of them can afford it.
- Both advantages: bet often, and big bets are available.
- Range advantage only: bet often but small. The opponent has as many strong hands as you, and big bets run into them.
- Nut advantage only: bet less often but bigger, with the strong hands and some bluffs, and check the middle.
- Neither: check much more and let the opponent bet.
Range equity
- Raiser · Under-the-gun open
- 62.4%
- Caller · Big-blind call against UTG
- 37.6%
In the top 10% of hands
- Raiser
- 34.5%
- Caller
- 19.1%
Illustrative ranges, written by hand for teaching — not solved.
Where the caller catches up at the top
Low connected boards are the opener's weakest spot. The big blind defends small pairs and suited connectors; the opener's big pairs become one pair on a board full of straights and two pairs.
Reading it at the table
You will not count combos in the middle of a hand. Ask two questions instead: which of this board's strongest hands could each of us hold, given how we got here? And did either of us remove those hands preflop?
A big-blind caller rarely has AA or KK, so on A♠8♦3♣ the set of aces belongs to the opener, and so does A-K, the best top pair. On 6♠5♦4♣ the straights and small sets come from hands the opener mostly folded, which is why the top is shared.
Rules of thumb
- Range advantage sets how often you bet; nut advantage sets how big.
- Big bets need more strong hands than the opponent has, not just more equity.
- Low connected boards are where the caller's share of the strongest hands catches up.
- With range advantage but no nut advantage, bet small.
When they break
- Against opponents who call big bets with any pair, big value bets work even without a clear nut advantage.
- Later in the hand both ranges have been narrowed, and the shares of the starting ranges no longer apply.