PokerSolver
PokerSolver/5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN 4-bet 11.5bb

SB vs BTN 4-bet 11.5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN opens 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb · Small blind to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
5-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 18.3bbYour cards?
5bb
1bb
11.5bb

Tap your two cards.

Small blind's range

302 of 1,326 combos get here
Fold 30.2%Call 53.2%Raise 25.3bb 11.1%All-in 249.84bb 5.5%
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 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

BTN opens 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the small blind (SB) folds 30.2%, calls 53.2%, raises 25.3bb 11.1% and goes all-in 249.84bb 5.5%. Always call: QQ, TT, 44-88, A4s, KQs, QTs+, J9s, T9s, 65s, AQo. Always raise 25.3bb: AQs. Mixed: KK+, JJ, 99, AKs, A7s-AJs, A5s, A3s, K7s-KJs, Q9s, JTs, 98s, 87s, 76s, AKo, KQo.

Always fold
T8s, ATo-AJo, KJo, QJo
Always call
QQ, TT, 44-88, A4s, KQs, QTs+, J9s, T9s, 65s, AQo
Always raise 25.3bb
AQs
Always all-in 249.84bb
No hand plays this every time
Mixed
KK+, JJ, 99, AKs, A7s-AJs, A5s, A3s, K7s-KJs, Q9s, JTs, 98s, 87s, 76s, AKo, 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.

Rake sources for the games it fits: 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.