PokerSolver
PokerSolver/4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs BB 4-bet 13.8bb

SB vs BB 4-bet 13.8bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb · Small blind to act

4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 20.44bbYour cards?
6bb
13.8bb

Tap your two cards.

Small blind's range

832 of 1,326 combos get here
Fold 71.9%Call 12.6%All-in 79.84bb 15.5%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?

SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 71.9%, calls 12.6% and goes all-in 79.84bb 15.5%. Always all-in 79.84bb: QQ-KK, 88, AJs, K7s, J9s, AKo. Mixed: AA, 99-JJ, 66-77, 33, AQs+, A3s-ATs, K8s+, K3s-K6s, QJs, Q7s-Q9s, Q2s-Q3s, J8s, J6s, T8s+, 96s, 87s, 85s, 75s+, A7o-AQo, A4o-A5o, K9o+, QTo+, J9o+.

Always fold
22, A2s, K2s, J7s, J4s, T5s-T7s, 97s+, 92s-94s, 86s, 83s-84s, 73s, 63s+, 54s, 43s, A3o, K7o-K8o, K2o, Q5o-Q9o, J7o-J8o, T8o+, 96o+, 75o+, 65o
Always call
No hand plays this every time
Always all-in 79.84bb
QQ-KK, 88, AJs, K7s, J9s, AKo
Mixed
AA, 99-JJ, 66-77, 33, AQs+, A3s-ATs, K8s+, K3s-K6s, QJs, Q7s-Q9s, Q2s-Q3s, J8s, J6s, T8s+, 96s, 87s, 85s, 75s+, A7o-AQo, A4o-A5o, K9o+, QTo+, J9o+
Settings: 4-max · 80bb · 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, 80bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.