PokerSolver
PokerSolver/5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN 4-bet 9.2bb

SB vs BTN 4-bet 9.2bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN opens 2bb, SB 3-bets to 4bb, BTN 4-bets to 9.2bb · Small blind to act

5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 15bbYour cards?
4bb
1bb
9.2bb

Tap your two cards.

Small blind's range

414 of 1,326 combos get here
Fold 45.5%Call 40.7%Raise 20.24bb 7.4%All-in 249.84bb 6.4%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when BTN opens 2bb, SB 3-bets to 4bb, BTN 4-bets to 9.2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

BTN opens 2bb, SB 3-bets to 4bb, BTN 4-bets to 9.2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the small blind (SB) folds 45.5%, calls 40.7%, raises 20.24bb 7.4% and goes all-in 249.84bb 6.4%. Always call: JJ, 66-99, 22-44, ATs, A3s, K5s, QTs, 76s, 65s. Always all-in 249.84bb: AKo. Mixed: QQ+, TT, 55, AJs+, A4s-A9s, A2s, K6s+, K4s, QJs, Q9s, J8s+, T7s+, 98s, AQo, KQo.

Always fold
Q7s, 87s, ATo-AJo, KJo, QJo, JTo
Always call
JJ, 66-99, 22-44, ATs, A3s, K5s, QTs, 76s, 65s
Always raise 20.24bb
No hand plays this every time
Always all-in 249.84bb
AKo
Mixed
QQ+, TT, 55, AJs+, A4s-A9s, A2s, K6s+, K4s, QJs, Q9s, J8s+, T7s+, 98s, AQo, KQo
Settings: 5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). A jackpot fee on bigger pots is not in this solve, so lines that build big pots may be slightly too loose. Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: the ante from 93 of our own CoinPoker hands at $0.25/$0.50 with a $0.08 ante, played 2026-09-30; the caps and the preflop rule from coinpoker.com/games/texas-holdem/, fetched 2026-10-31.