PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 4-bet 17.25bb

BB vs SB 4-bet 17.25bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb · Big blind to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 25.39bbYour cards?
7.5bb
17.25bb

Tap your two cards.

Big blind's range

994 of 1,326 combos get here
Fold 65.6%Call 29.9%All-in 149.84bb 4.4%
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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the big blind (BB) folds 65.6%, calls 29.9% and goes all-in 149.84bb 4.4%. Always call: AA, 22-JJ, AQs+, A9s, A3s, K8s+, K4s-K6s, K2s, Q9s+, J8s+, T7s+, 97s+, 86s+, 75s+, 64s+, 53s+, AQo, KJo+. Always all-in 149.84bb: KK, A2s, AKo. Mixed: QQ, ATs-AJs, A4s-A8s, K3s, Q8s, Q4s-Q5s, J7s, T5s, 96s, 85s, 74s, 43s, 32s, ATo-AJo, QJo, JTo.

Always fold
Q6s-Q7s, Q2s-Q3s, J2s-J3s, T2s-T3s, 92s-95s, 82s, 73s, 62s, 42s, A2o-A7o, K9o, K2o-K5o, Q2o-Q8o, J2o-J9o, T4o+, 96o+, 54o
Always call
AA, 22-JJ, AQs+, A9s, A3s, K8s+, K4s-K6s, K2s, Q9s+, J8s+, T7s+, 97s+, 86s+, 75s+, 64s+, 53s+, AQo, KJo+
Always all-in 149.84bb
KK, A2s, AKo
Mixed
QQ, ATs-AJs, A4s-A8s, K3s, Q8s, Q4s-Q5s, J7s, T5s, 96s, 85s, 74s, 43s, 32s, ATo-AJo, QJo, JTo
Settings: 4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.