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

SB vs BTN all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN goes all-in · 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
Tournament
4-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 98.73bbYour cards?
17.25bb
1bb
79.84bb

Tap your two cards.

Small blind's range

346 of 1,326 combos get here
Fold 69%Call 31%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?

BTN limps, SB isolates to 2.5bb, BTN 3-bets to 7.5bb, SB 4-bets to 17.25bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 69% and calls 31%. Always call: TT+, AQs+, AQo+. Mixed: 88-99, 55-66, ATs-AJs, A6s-A7s, A4s, KQs, KTs, K8s, K6s, Q9s-QTs, JTs, J7s-J8s, ATo, KJo+.

Always fold
77, A8s-A9s, A5s, A3s, K9s, K5s, QJs, J9s, T7s+, 97s+, 86s+, 76s, 64s+, AJo, A9o, A5o, KTo, JTo
Always call
TT+, AQs+, AQo+
Mixed
88-99, 55-66, ATs-AJs, A6s-A7s, A4s, KQs, KTs, K8s, K6s, Q9s-QTs, JTs, J7s-J8s, ATo, KJo+
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.