PokerSolver
PokerSolver/5-max · 100bb · 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) · 100bb · SB opens 2bb, BB 3-bets to 4bb · Small blind to act

5-max · 100bb · 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

738 of 1,326 combos get here
Fold 14.4%Call 70.7%Raise 9.2bb 10.2%All-in 99.84bb 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 100bb?

SB opens 2bb, BB 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the small blind (SB) folds 14.4%, calls 70.7%, raises 9.2bb 10.2% and goes all-in 99.84bb 4.6%. Always call: 22-66, A7s, A3s, K8s, K4s-K6s, QTs, Q8s, Q5s, Q3s, J7s-J8s, J4s, T5s, 96s, 86s+, 76s, 74s, 63s, 54s, 43s, A9o, A3o-A6o, KTo-KJo, K8o, QJo, Q9o, JTo, T8o, 98o. Always raise 9.2bb: AA, AQs. Always all-in 99.84bb: AKo. Mixed: 77-KK, AKs, A8s, A4s-A6s, K9s-KJs, K7s, QJs, Q9s, J9s, T7s+, T3s-T4s, 98s, 95s, 84s, 65s, ATo-AQo, A2o, KQo, K5o-K7o, Q7o-Q8o, J8o, 97o, 87o, 76o.

Always fold
94s, Q6o, J7o, T7o, 65o
Always call
22-66, A7s, A3s, K8s, K4s-K6s, QTs, Q8s, Q5s, Q3s, J7s-J8s, J4s, T5s, 96s, 86s+, 76s, 74s, 63s, 54s, 43s, A9o, A3o-A6o, KTo-KJo, K8o, QJo, Q9o, JTo, T8o, 98o
Always raise 9.2bb
AA, AQs
Always all-in 99.84bb
AKo
Mixed
77-KK, AKs, A8s, A4s-A6s, K9s-KJs, K7s, QJs, Q9s, J9s, T7s+, T3s-T4s, 98s, 95s, 84s, 65s, ATo-AQo, A2o, KQo, K5o-K7o, Q7o-Q8o, J8o, 97o, 87o, 76o
Settings: 5-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.