PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 4-bet 11.5bb

BB vs SB 4-bet 11.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb · Big 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
4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 17.14bbYour cards?
5bb
11.5bb

Tap your two cards.

Big blind's range

850 of 1,326 combos get here
Fold 54.8%Call 36.3%Raise 25.3bb 8.9%All-in 199.84bb 0.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the big blind (BB) folds 54.8%, calls 36.3%, raises 25.3bb 8.9% and goes all-in 199.84bb 0.1%. Always call: 22-JJ, AQs, A9s-ATs, A7s, A4s, KTs+, K7s, K3s, QTs+, Q8s, J9s, T9s, 98s, 87s, 76s, 64s+, 53s, KTo. Always raise 25.3bb: KK+. Mixed: QQ, AKs, AJs, A8s, A6s, A2s-A3s, K8s-K9s, K4s-K6s, K2s, Q9s, Q3s-Q7s, JTs, J8s, J6s, J3s, T7s-T8s, 94s-97s, 85s-86s, 83s, 73s-75s, 63s, 54s, 52s, 42s+, A8o+, A4o-A5o, KJo+, QJo, J9o+, T9o.

Always fold
T3s-T4s, 92s, 84s, 62s, 32s, A6o-A7o, K9o, K7o, K5o, K2o, Q8o-QTo, Q4o, J7o, J5o, T6o-T8o, 98o, 85o, 64o
Always call
22-JJ, AQs, A9s-ATs, A7s, A4s, KTs+, K7s, K3s, QTs+, Q8s, J9s, T9s, 98s, 87s, 76s, 64s+, 53s, KTo
Always raise 25.3bb
KK+
Always all-in 199.84bb
No hand plays this every time
Mixed
QQ, AKs, AJs, A8s, A6s, A2s-A3s, K8s-K9s, K4s-K6s, K2s, Q9s, Q3s-Q7s, JTs, J8s, J6s, J3s, T7s-T8s, 94s-97s, 85s-86s, 83s, 73s-75s, 63s, 54s, 52s, 42s+, A8o+, A4o-A5o, KJo+, QJo, J9o+, T9o
Settings: 4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.