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NL50 Hand Analysis: SB Folds AK on River to KQ, Correct or Overfold?

NewsSource: Reddit r/onlinepoker8 views
NL50 Hand Analysis: SB Folds AK on River to KQ, Correct or Overfold?

In a NL50 6-max hand, a player called a 30% pot river bet with KQ in a 4-bet pot. The opponent in the SB showed AK and immediately folded. The article analyzes whether this fold was correct and discusses the significance of the opponent having no river bluff history.

Hand Review

Reddit user Vivid_Kale6495 shared a NL50 [6-max] hand, both players effective stacks 100bb. The hero opened with KQo on the BTN, the SB (a solid reg) 3-bet to 11bb, and hero called.

Flop (24bb): K♥7♣2♦ (rainbow board). SB bet 6bb, hero called.

Turn (36bb): 5♠. SB bet 22bb (~61% pot), hero called.

River (80bb): J♦. SB tanked for about 8 seconds then bet 24bb (30% pot). Hero tanked with second pair top kicker (KQ) and called. SB immediately mucked AK before hero even showed, not even waiting.

Strategic Analysis

Was SB's fold correct? From a theoretical standpoint, after SB value-bets AK on the river and gets called, he usually needs to assess hero's range. SB's bet size was small (30% pot), possibly trying to induce thin value calls or block bluffs. But against an opponent who called a 3-bet preflop, then called flop and turn, his range includes all Kx hands and some straight draws (like QTs). The river J gives QT a straight, while KQ, KJ, etc. also make strong hands.

SB's AK is actually top pair top kicker, but is beaten by KQ or KJ. Since SB instantly folded after hero called on the river, it indicates SB believes hero's range contains no hands he can beat. However, given the small bet size, some worse Kx (like KTs) might also call, but SB might have excluded those combos.

Hero's perspective: Hero's call with KQ is reasonable because SB's bet size is small, and hero holds a blocker (K), reducing the chance SB has KK. Additionally, hero mentioned that over 200+ hands with this opponent, he had never seen him bluff on the river. This historical information increases the probability that SB's river bet is for value, but even so, KQ as second pair top kicker still has enough pot odds to call against a 30% pot bet to catch a bluff (even though the opponent rarely bluffs).

Key Conclusions

  • If SB has any bluffing frequency on the river, folding AK might be too tight, because AK can beat many hands besides KQ (like QQ, JJ).
  • But if SB is certain that hero never folds hands better than AK (like KQ or better), and SB himself never bluffs, then the fold is reasonable, because calling would only lose more.
  • The information that "opponent never bluffed on the river" in hero's sample is relevant, but 200 hands is a small sample and may contain bias.

Summary

This is a classic thin value bet versus bluff-catching scenario. SB's fold may be correct from an exploitative perspective, but more sample is needed to confirm. Hero's call leveraged the small bet size and his own hand strength.

FAQ

SB likely thought their AK was still strong, hoping to get thin value from worse Kx or busted draws. The small bet size can induce calls while controlling losses.