PokerSolver
PokerSolver/5-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

5-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

5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 17.3bbYour cards?
5bb
11.5bb

Tap your two cards.

Big blind's range

958 of 1,326 combos get here
Fold 60.6%Call 33.4%All-in 59.84bb 5.9%
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 5-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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the big blind (BB) folds 60.6%, calls 33.4% and goes all-in 59.84bb 5.9%. Always call: AA, 88, 55-66, A6s-AJs, A3s, K9s-KJs, K5s-K6s, K2s, QJs, Q7s-Q9s, J8s+, T8s+, 97s+, 86s+, 75s+, 65s, 54s, 43s, ATo-AJo, KQo, JTo. Always all-in 59.84bb: JJ-KK, AKs, AKo. Mixed: 99-TT, 33-44, AQs, A4s-A5s, A2s, K7s-K8s, K4s, Q2s, J5s, J3s, T7s, 73s-74s, 63s, 52s-53s, 32s, AQo, A8o-A9o, K9o, Q9o.

Always fold
J6s, T3s-T4s, 94s, 92s, 83s, 62s, A6o, A4o, A2o, K2o-K6o, Q6o-Q8o, Q2o-Q3o, J8o, J4o-J6o, T5o-T8o, 95o+, 85o, 43o
Always call
AA, 88, 55-66, A6s-AJs, A3s, K9s-KJs, K5s-K6s, K2s, QJs, Q7s-Q9s, J8s+, T8s+, 97s+, 86s+, 75s+, 65s, 54s, 43s, ATo-AJo, KQo, JTo
Always all-in 59.84bb
JJ-KK, AKs, AKo
Mixed
99-TT, 33-44, AQs, A4s-A5s, A2s, K7s-K8s, K4s, Q2s, J5s, J3s, T7s, 73s-74s, 63s, 52s-53s, 32s, AQo, A8o-A9o, K9o, Q9o
Settings: 5-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 24.3). 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.