PokerSolver
PokerSolver/Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB 4-bet 11.5bb

BB vs SB 4-bet 11.5bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (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

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
Tournament
Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 16.82bbYour cards?
5bb
11.5bb

Tap your two cards.

Big blind's range

540 of 1,326 combos get here
Fold 50.8%Call 35.8%All-in 59.84bb 13.5%
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 Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 60bb?

SB opens 2.5bb, BB 3-bets to 5bb, SB 4-bets to 11.5bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 60bb: the big blind (BB) folds 50.8%, calls 35.8% and goes all-in 59.84bb 13.5%. Always call: 55-66, AJs, A8s-A9s, A6s, KQs, K7s-KTs, QTs+, J9s+, T9s, 76s, 65s, 54s, AJo, KJo+. Always all-in 59.84bb: QQ-KK, AQs+, AQo+. Mixed: AA, 77-JJ, 44, A7s, A2s-A5s, Q9s, T8s, 98s, 87s, 75s, 64s, 43s.

Always fold
J7s, 96s-97s, 85s, 52s, 42s, 32s, A7o-A8o, K6o, Q8o-Q9o, J9o, T7o-T8o, 97o+, 87o, 76o, 65o
Always call
55-66, AJs, A8s-A9s, A6s, KQs, K7s-KTs, QTs+, J9s+, T9s, 76s, 65s, 54s, AJo, KJo+
Always all-in 59.84bb
QQ-KK, AQs+, AQo+
Mixed
AA, 77-JJ, 44, A7s, A2s-A5s, Q9s, T8s, 98s, 87s, 75s, 64s, 43s
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.

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.