Part: Part Six - Betting After the Flop

Leading after he checks back

Turn
Heads-upPot 1,300 (6.5 BB)J624BBJ9 25,000 (125 BB)YOUtop pair after he passed on the flopBTN 25,000 (125 BB)Buttonchecked back the flopD

You called a button raise from the big blind with J♦9♦. The flop was J♠ 6♣ 2♥ and you checked - the button checked back. Turn 4♦ gives you top pair plus a flush draw.

He checked back the flop (capping his range), and you have top pair on the turn. Best?

WhyBy passing on the c-bet he capped himself at a weak or medium hand - the strong ones almost always bet - so you are now ahead of most of his range with top pair and a flush draw behind it. Lead out for 800: you get value from worse, deny a free card to any draw, and grab the initiative he declined. When the raiser will not c-bet, betting into him later is the whole point.
What happensYou bet 800; he folds. The probe collects it - and with top pair plus a draw you would have been happy to keep firing had he continued.
His flop check-back capped his range, so you led the turn to reclaim the betting lead - a probe bet that took a pot he had signaled he did not want.

When the pre-flop raiser checks back the flop, he has told you he is weak - probe a later street to seize the initiative he handed over.