PokerSolver
PokerSolver/Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/SB vs BB 4-bet 13.8bb

SB vs BB 4-bet 13.8bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB limps, BB isolates to 3bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb · Small blind / button to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
Tournament
Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 20.12bbYour cards?
6bb
13.8bb

Tap your two cards.

Small blind / button's range

510 of 1,326 combos get here
Fold 18.3%Call 77.4%All-in 99.84bb 4.3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind / button (SB) when SB limps, BB isolates to 3bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB limps, BB isolates to 3bb, SB 3-bets to 6bb, BB 4-bets to 13.8bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the small blind / button (SB) folds 18.3%, calls 77.4% and goes all-in 99.84bb 4.3%. Always call: KK+, 66-99, AQs, K2s-K4s, Q4s-Q6s, J7s, 95s-97s, 86s, 84s, 74s, 64s, 62s, ATo-AJo, A5o, KTo+, QTo+, J9o, 98o, 87o, 76o. Mixed: JJ, 93s, 73s, A6o-A7o, A3o-A4o, Q9o, T8o.

Always fold
T2s, Q7o-Q8o
Always call
KK+, 66-99, AQs, K2s-K4s, Q4s-Q6s, J7s, 95s-97s, 86s, 84s, 74s, 64s, 62s, ATo-AJo, A5o, KTo+, QTo+, J9o, 98o, 87o, 76o
Always all-in 99.84bb
No hand plays this every time
Mixed
JJ, 93s, 73s, A6o-A7o, A3o-A4o, Q9o, T8o
Settings: Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.

Rake sources for the games it fits: 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.