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

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 21.44bbYour cards?

6bb

1bb

13.8bb

Tap your two cards.

Small blind's range

490 of 1,326 combos get here

Fold 62.5%Call 23.4%All-in 99.84bb 14.1%

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 100bb?

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, 100bb: the small blind (SB) folds 62.5%, calls 23.4% and goes all-in 99.84bb 14.1%. Always call: 88, 44, 22, AJs-AQs, KQs. Always all-in 99.84bb: QQ-KK, AKs, A3s, AKo. Mixed: AA, 99-JJ, 55-77, A4s-ATs, K9s-KJs, Q8s+, J9s+, J7s, T7s-T8s, 87s, 75s+, 65s, 53s+, AJo-AQo, KQo.

Always fold: K5s-K8s, K3s, Q6s-Q7s, Q2s-Q3s, J8s, J4s-J5s, T9s, T6s, T3s, 96s+, 86s, ATo, K9o-KJo, QTo+, JTo, T9o
Always call: 88, 44, 22, AJs-AQs, KQs
Always all-in 99.84bb: QQ-KK, AKs, A3s, AKo
Mixed: AA, 99-JJ, 55-77, A4s-ATs, K9s-KJs, Q8s+, J9s+, J7s, T7s-T8s, 87s, 75s+, 65s, 53s+, AJo-AQo, KQo

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.