PokerSolver
PokerSolver/5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BB 3-bet 4bb

SB vs BB 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB opens 2bb, BB 3-bets to 4bb · Small blind to act

5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 6.8bbYour cards?
2bb
4bb

Tap your two cards.

Small blind's range

718 of 1,326 combos get here
Fold 20.2%Call 63.1%Raise 9.2bb 12.1%All-in 79.84bb 4.6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when SB opens 2bb, BB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

SB opens 2bb, BB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the small blind (SB) folds 20.2%, calls 63.1%, raises 9.2bb 12.1% and goes all-in 79.84bb 4.6%. Always call: 22-88, A8s-A9s, K6s-K9s, J9s+, J3s-J5s, T8s, 98s, 74s, 65s, A6o-A7o, KTo-KJo, K7o, QJo, Q9o, JTo, T8o. Always raise 9.2bb: AA, AQs. Mixed: QQ-KK, 99-TT, AKs, ATs, A4s-A7s, KQs, KTs, Q9s+, J8s, T9s, T4s-T5s, 94s-95s, 87s, 84s, 76s, 63s, 52s+, 43s, ATo+, A5o, A2o-A3o, KQo, K8o, K5o-K6o, Q8o, J8o, T7o, 97o+, 87o, 76o, 65o.

Always fold
Q6o, J7o
Always call
22-88, A8s-A9s, K6s-K9s, J9s+, J3s-J5s, T8s, 98s, 74s, 65s, A6o-A7o, KTo-KJo, K7o, QJo, Q9o, JTo, T8o
Always raise 9.2bb
AA, AQs
Always all-in 79.84bb
No hand plays this every time
Mixed
QQ-KK, 99-TT, AKs, ATs, A4s-A7s, KQs, KTs, Q9s+, J8s, T9s, T4s-T5s, 94s-95s, 87s, 84s, 76s, 63s, 52s+, 43s, ATo+, A5o, A2o-A3o, KQo, K8o, K5o-K6o, Q8o, J8o, T7o, 97o+, 87o, 76o, 65o
Settings: 5-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.