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Defending vs C-bets

Lesson 6 · OOP defense: check-call, check-raise, fold · 30 practice questions

Defending OOP

Out of position you act first on every street, so you realize less of your equity: you cannot take free cards, you get bluffed off medium hands, and you rarely win extra bets when you hit. That is why the big blind defends somewhat tighter than raw MDF against big bets. Against small bets, however, the price is so good that you must keep defending widely — otherwise villain profits by betting any two cards.

Example. On 9♠7♦2♣ villain c-bets 2 into 6 and you hold K♥Q♥ (two overcards). You need only 2/(6+2+2) = 20% equity to call, while MDF says you should continue with 1 − 2/8 = 75% of your range — nearly everything with live cards. 6 outs to top pair plus some bluffing equity clear 20% with room to spare, and folding here would make his one-third bet an automatic profit: call. With Q♥J♣ (top pair) on Q♦8♠3♣ against the same small bet, calling is also right — raising folds out his bluffs and only gets action from better.

Common mistake: folding 'too weak to continue' hands against a one-third bet. Against 2 into 6 you are laid 4:1; two live overcards are a mandatory defend, not a hero call.

Check-raise for value & bluffs

Calling is not your only defense. On wet boards the big blind's range contains many of the strongest hands — sets, two pairs, straights — plus a lot of big draws, and the check-raise is how those hands make money out of position. Raising for value grows the pot while you are ahead and charges the draws that would otherwise see a cheap turn; raising with big draws as a semi-bluff wins the pot right away often enough, and when called you still have plenty of outs. Mixing the two keeps villain from reading the raise as 'always the nuts'.

Example. On 8♥7♥6♣ you flop bottom set with 6♠6♦ and villain bets 4 into 6. This board hits villain's range with straights, flush draws and pairs that will pay off: raise for value and protection now, because so many turn cards change the nuts. On 9♥8♥2♣ with J♥T♥ you hold a flush draw plus an OESD — 15 outs, about 32% to improve on the next card — against a bet of 4 into 6 that needs 29%. Calling is already profitable; raising adds fold equity on top and is at least as good.

Common mistake: check-raising only with the nuts. If your raises are never draws, villain folds everything but his strongest hands and your sets stop getting paid.

Fold discipline

Defending the correct frequency does not mean defending every hand. The bigger the bet and the better the board for the raiser, the more of your range has to go into the muck — and the hands that go are the ones with the least equity and the worst reverse implied odds: no pair, no draw, or bottom pair on an ace-high board. Fold them without regret; MDF is met by the top of your range, not by stubborn calls with air.

Example. On K♦7♠2♣ villain bets 5 into 6 (near pot) and you hold 5♣4♣ — no pair, a backdoor draw at best. You need 5/(6+5+5) = 31% equity to call and hold almost none; MDF asks for only 1 − 5/11 = 55% defense, which your kings, pairs and real draws already supply. Fold. On K♠9♥4♦ with J♣T♣ the temptation is stronger: a gutshot, 4 outs to a straight, about 9% on the next card. That is nowhere near the 31% the price demands, and four outs are too few for later streets to make up the gap: fold this too. Change the board and the answer changes: on K♥Q♦6♣ the same J♠T♠ has 8 outs, every one of them to the nuts, and with a second card still to come that draw is strong enough to continue.

Common mistake: 'I have to defend MDF, so I call'. MDF is a range target. Calling near-pot bets with no pair and a 4-out draw is exactly how a range over-defends with its worst hands while the good ones do the work.

After you call: the turn

Calling the flop is not the end of the decision; it is the start of a plan for the turn, and the turn is where most of the big blind's money is won or lost. When villain fires a second barrel, ask three questions in order. Did the turn change anything? A blank turn leaves your top pair as strong as it was on the flop, and against a range that bets twice, one pair is a bluff-catcher: call small and medium bets, and keep calling a pot-sized one with top pair and a good kicker. How big is the bet? The bigger the second barrel, the more it means — second pair calls a third of the pot and folds to two-thirds or more. What does your draw cost now? With one card to come a draw is worth roughly two percent per out, so 8 outs is about 17%: close to the 20% a one-third bet asks for, well short of two-thirds (29%) or pot (33%).

Example. Turn K♦8♣4♠2♥ with Q♠8♠ facing 4 into 12: you need 4/(12+4+4) = 20%, and second pair beats every bluff — call. Turn J♥8♦5♣2♠ with T♣9♣ facing 12 into 12: the OESD is 8 outs, about 17%, against a 33% price — fold; the flop call bought one card, not two. And with a set, like 7♥7♣ on 7♦6♣2♠K♥ facing a small bet, raise now while the straight draws still pay.

Common mistake: calling the turn because you called the flop. The flop price paid for one card and a chance at a second; the turn price pays for exactly one.

Key takeaways

• Small c-bet (2 into 6, one-third) → defend almost everything with live cards; call with top pair, raise only the very top.
• Medium c-bet (4 into 6) on a wet board → raise sets, two pair and flush-draw-plus-straight-draw combos; call single draws that get the right price.
• Big c-bet (5 into 6) on a dry ace- or king-high board → fold air, bare gutshots and bottom pair; call top pair and better.
• Any size → count your outs before calling with a draw: 4 outs fold to a big bet, 8 or more usually continue on the flop; sets always raise on wet boards.
• Turn second barrel after you called the flop → on a blank turn top pair with a good kicker calls even a pot-sized bet; second pair calls a third of the pot and folds to two-thirds or more; a bare 8-out draw (about 17%) folds to two-thirds or more.

Sample drill from this lesson

FAQ

Key terms in this lesson

MDF (Minimum Defense Frequency) · Implied Odds · Equity · Outs · Gutshot vs OESD (Straight Draws) · Range (Poker Hand Range) · Board Texture (Wet vs Dry) · Continuation Bet (C-bet) · Position (IP vs OOP) · Bluff Catcher · Barrel (Second and Third Barrel) · Check-Raise · Semi-Bluff · Fold Equity

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