PokerSolver
PokerSolver/4-max · 100bb · 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) · 100bb · SB limps, BB isolates to 2bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb · Small blind to act

4-max · 100bb · 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

760 of 1,326 combos get here
Fold 72%Call 12%All-in 99.84bb 15.9%
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 100bb?

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, 100bb: the small blind (SB) folds 72%, calls 12% and goes all-in 99.84bb 15.9%. Always call: ATs, KQs, KTs. Always all-in 99.84bb: QQ, AQs+. Mixed: KK+, 44-JJ, AJs, A9s, A2s-A7s, KJs, K9s, K5s-K7s, K2s, QJs, Q7s-Q8s, Q5s, J6s-J8s, J3s, T8s+, 96s+, 85s+, 75s+, 65s, 54s, A8o+, A4o, KTo-KJo.

Always fold
Q9s, Q6s, Q3s, T6s-T7s, T2s-T3s, 95s, 84s, 63s-64s, 43s, A5o-A6o, A3o, KQo, K8o-K9o, QTo+, Q6o-Q7o, JTo, J7o, T9o, T7o, 97o, 86o+, 76o, 65o, 54o
Always call
ATs, KQs, KTs
Always all-in 99.84bb
QQ, AQs+
Mixed
KK+, 44-JJ, AJs, A9s, A2s-A7s, KJs, K9s, K5s-K7s, K2s, QJs, Q7s-Q8s, Q5s, J6s-J8s, J3s, T8s+, 96s+, 85s+, 75s+, 65s, 54s, A8o+, A4o, KTo-KJo
Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.