J♦J♣ SB vs BTN, river on J♠ 7♣ 4♦ T♦ 3♠, 90 bb
The spot
- You: SB
- Opponent: BTN
- Your hand: J♦J♣
- Board: J♠ 7♣ 4♦ T♦ 3♠
- Effective stack: 90 bb
- Pot: 24.5 bb
River checks to hero after two-street sequence.
Best river decision in baseline?
See the answer
Best play: Bet 40% pot
Why
The river is J 7 4 T 3 and hero holds JJ, which is a set of jacks — top set, near the top of any range on this board. Leading small (40%) is a thin-but-real value lead OOP: it gets called by Tx, Jx, draws-turned-pairs and overpairs that would often check back, milking value from the capped BTN while keeping worse hands in.
Key idea
With a monster like top set OOP, leading for value is correct; a smaller size keeps the capped player's weaker pairs and bluff‑catchers in, which often pays more than betting big and folding them out.
Common mistake
Checking a set on the river out of position, missing a value street against a player who will pay a smaller bet with second pair and worse.