PokerSolver
PokerSolver/Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB 4-bet 9.2bb

BB vs SB 4-bet 9.2bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · SB opens 2bb, BB 3-bets to 4bb, SB 4-bets to 9.2bb · Big blind to act

Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 13.52bbYour cards?
4bb
9.2bb

Tap your two cards.

Big blind's range

666 of 1,326 combos get here
Fold 51.1%Call 43.5%All-in 59.84bb 5.3%
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 2bb, BB 3-bets to 4bb, SB 4-bets to 9.2bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 60bb?

SB opens 2bb, BB 3-bets to 4bb, SB 4-bets to 9.2bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 60bb: the big blind (BB) folds 51.1%, calls 43.5% and goes all-in 59.84bb 5.3%. Always call: AA, QQ, 33-99, AJs-AQs, A9s, A2s-A3s, KJs+, K8s-K9s, K6s, Q9s+, J9s+, T9s, 98s, 53s+, A8o-AQo, KQo. Always all-in 59.84bb: AKo. Mixed: KK, TT, AKs, A4s-A7s, KTs, K7s, K4s, Q8s, J8s, T8s, 96s-97s, 86s+, 76s, 64s+, A6o, KTo-KJo, QTo+, T9o.

Always fold
J7s, J5s, T6s-T7s, T2s, 95s, 75s, 72s, 52s, 42s, 32s, A7o, K8o-K9o, K6o, Q8o, 98o, 65o
Always call
AA, QQ, 33-99, AJs-AQs, A9s, A2s-A3s, KJs+, K8s-K9s, K6s, Q9s+, J9s+, T9s, 98s, 53s+, A8o-AQo, KQo
Always all-in 59.84bb
AKo
Mixed
KK, TT, AKs, A4s-A7s, KTs, K7s, K4s, Q8s, J8s, T8s, 96s-97s, 86s+, 76s, 64s+, A6o, KTo-KJo, QTo+, T9o
Settings: Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 60bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.73). 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.