With top pair and shallow stacks on the turn, flatting keeps villain's bluffs committed while shoving lets their air escape.
Flop Analysis
Calling the small c-bet in position is completely fine, though raising immediately is a high-EV alternative at this stack depth.
**Ranges:** HJ c-bets a wide range including second pairs like KJs and gutshots like KQ. While raising puts immediate pressure on draws and targets weaker pairs, flatting keeps our range wide and protects our calling range.
**Math:** Getting 3.6:1 direct pot odds facing a 38% pot c-bet, calling requires only 21.6% equity, which our top pair with a backdoor flush draw crushes.
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> **Takeaway:** In shallow SPR pots in position, top pair can comfortably mix between calling to under-rep and raising to deny equity.
Turn Analysis
Calling is the higher-frequency line here. While an all-in raise mixes in, flatting is higher EV because it keeps HJ's bluffing range trapped in the pot.
**Ranges:** When HJ barrels 8.1BB into 9.7BB, their range polarizes to strong value (two pairs like AJ/A8, sets) and semi-bluffs or air (gutshots like KQ, double gutshots like QT). Shoving forces HJ to fold their bluffs—which is what happened—while only getting called by hands that have us crushed.
**Math:** With an SPR under 0.5 and HJ committing over half their remaining stack, flatting leaves HJ with just 7.8BB behind. They have virtually zero fold equity on the river and will be forced to shove or surrender with missed draws.
**Plan:** Calling keeps HJ's bluffs in play to dump their last chips on brick rivers, whereas shoving lets them fold their misses with zero penalty.
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> **Takeaway:** When an opponent heavily commits their stack with a polarizing bet, call to let them bluff off the rest on the river rather than letting their air fold.