PokerSolver
PokerSolver/5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 4bb

BB vs SB 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO opens 2bb, SB 3-bets to 4bb · Big blind to act

5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.8bbYour cards?
1bb
2bb
4bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 90.3%Call 5.5%Raise 9.2bb 3.5%All-in 149.84bb 0.7%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2bb, SB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

CO opens 2bb, SB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the big blind (BB) folds 90.3%, calls 5.5%, raises 9.2bb 3.5% and goes all-in 149.84bb 0.7%. Always call: JJ. Mixed: QQ+, 22-TT, AQs+, A8s-ATs, A2s-A6s, K9s+, K6s-K7s, QJs, T8s+, 97s, 84s-85s, 75s+, 63s, 43s, 32s, AQo+, QJo, 65o.

Always fold
AJs, A7s, K8s, K2s-K5s, Q2s-QTs, J2s+, T2s-T7s, 98s, 92s-96s, 86s+, 82s-83s, 72s-74s, 64s+, 62s, 52s+, 42s, A2o-AJo, K2o+, Q2o-QTo, J2o+, T2o+, 92o+, 82o+, 72o+, 62o-64o, 52o+, 42o+, 32o
Always call
JJ
Always raise 9.2bb
No hand plays this every time
Always all-in 149.84bb
No hand plays this every time
Mixed
QQ+, 22-TT, AQs+, A8s-ATs, A2s-A6s, K9s+, K6s-K7s, QJs, T8s+, 97s, 84s-85s, 75s+, 63s, 43s, 32s, AQo+, QJo, 65o
Settings: 5-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.89). 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.