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

SB vs BTN 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 · BTN opens 2bb, SB 3-bets to 6bb, BTN 4-bets to 13.8bb · Small blind 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
4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 21.44bbYour cards?
6bb
1bb
13.8bb

Tap your two cards.

Small blind's range

492 of 1,326 combos get here
Fold 66.2%Call 16.1%All-in 79.84bb 17.7%
Tap a hand, or type one above, to see its exact mix.

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

BTN opens 2bb, SB 3-bets to 6bb, BTN 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 66.2%, calls 16.1% and goes all-in 79.84bb 17.7%. Always all-in 79.84bb: JJ-KK, AKs, A3s-A4s, AKo. Mixed: AA, 88-TT, 44-66, 22, A5s-AQs, A2s, KTs+, K7s-K8s, K5s, K2s, Q8s+, J8s+, T8s, 97s, 87s, 76s, 65s, ATo-AQo.

Always fold
77, K9s, K6s, K3s, Q3s, J7s, T9s, T7s, 98s, 95s, 86s, 74s-75s, 64s, 54s, A8o-A9o, A5o, KTo+, QTo+, JTo
Always call
No hand plays this every time
Always all-in 79.84bb
JJ-KK, AKs, A3s-A4s, AKo
Mixed
AA, 88-TT, 44-66, 22, A5s-AQs, A2s, KTs+, K7s-K8s, K5s, K2s, Q8s+, J8s+, T8s, 97s, 87s, 76s, 65s, ATo-AQo
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.

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.