PokerSolver
PokerSolver/Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB 4-bet 17.25bb

BB vs SB 4-bet 17.25bb

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 7.5bb, SB 4-bets to 17.25bb · 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
Heads-up · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 25.07bbYour cards?
7.5bb
17.25bb

Tap your two cards.

Big blind's range

890 of 1,326 combos get here
Fold 73.6%Call 11.2%All-in 59.84bb 15.1%
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 7.5bb, SB 4-bets to 17.25bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 60bb?

SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 60bb: the big blind (BB) folds 73.6%, calls 11.2% and goes all-in 59.84bb 15.1%. Always call: AA, A7s-ATs, K9s, Q9s+, J9s+. Always all-in 59.84bb: TT-KK, 77, 55, 33, AQs+, A2s, KQs, AQo+. Mixed: 88-99, 66, 44, AJs, A3s-A6s, KTs-KJs, K8s, K5s-K6s, T9s, 98s, 87s, 76s, 65s, 54s, AJo, KQo.

Always fold
K3s, Q5s-Q8s, Q2s-Q3s, J6s-J8s, J2s-J3s, T5s-T8s, T2s-T3s, 92s-97s, 82s-86s, 72s-75s, 62s-64s, 52s-53s, 42s+, 32s, A2o-ATo, K8o-KJo, K3o-K6o, Q6o+, J9o+, T7o+, 96o+, 86o+, 76o, 65o, 54o
Always call
AA, A7s-ATs, K9s, Q9s+, J9s+
Always all-in 59.84bb
TT-KK, 77, 55, 33, AQs+, A2s, KQs, AQo+
Mixed
88-99, 66, 44, AJs, A3s-A6s, KTs-KJs, K8s, K5s-K6s, T9s, 98s, 87s, 76s, 65s, 54s, AJo, KQo
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.