PokerSolver
PokerSolver/6-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 4-bet 11.5bb

BB vs SB 4-bet 11.5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb · Big blind to act

6-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 17.46bbYour cards?
5bb
11.5bb

Tap your two cards.

Big blind's range

744 of 1,326 combos get here
Fold 56.5%Call 36.8%All-in 59.84bb 6.7%
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 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 60bb?

SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the big blind (BB) folds 56.5%, calls 36.8% and goes all-in 59.84bb 6.7%. Always call: AA, 88-99, 55, A9s-AJs, KQs, K7s-K9s, K4s-K5s, K2s, QJs, J9s+, T8s+, 97s+, 87s, 65s, 54s, ATo-AJo, KQo, KTo. Always all-in 59.84bb: KK, AKs. Mixed: TT-QQ, AQs, A7s, A4s-A5s, KTs-KJs, T7s, AQo, A9o, A4o, KJo, K8o-K9o, QTo.

Always fold
T2s, 94s, 82s, A3o, K2o-K5o, Q8o, Q4o, J5o-J8o, J2o-J3o, T5o-T8o, 95o+, 87o
Always call
AA, 88-99, 55, A9s-AJs, KQs, K7s-K9s, K4s-K5s, K2s, QJs, J9s+, T8s+, 97s+, 87s, 65s, 54s, ATo-AJo, KQo, KTo
Always all-in 59.84bb
KK, AKs
Mixed
TT-QQ, AQs, A7s, A4s-A5s, KTs-KJs, T7s, AQo, A9o, A4o, KJo, K8o-K9o, QTo
Settings: 6-max · 60bb · 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, 60bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.