PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN all-in

BB vs BTN all-in

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN limps, BB isolates to 2.5bb, BTN 3-bets to 7.5bb, BB 4-bets to 17.25bb, BTN goes all-in · Big 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 · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 118.23bbYour cards?
17.25bb
99.84bb
0.5bb

Tap your two cards.

Big blind's range

324 of 1,326 combos get here
Fold 76.7%Call 23.3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN limps, BB isolates to 2.5bb, BTN 3-bets to 7.5bb, BB 4-bets to 17.25bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

BTN limps, BB isolates to 2.5bb, BTN 3-bets to 7.5bb, BB 4-bets to 17.25bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 76.7% and calls 23.3%. Always call: JJ+, AKs, KQs, AKo. Mixed: 88-99, ATs-AQs, A3s, QTs+, Q8s, Q6s, J8s, AQo.

Always fold
66-77, 44, A8s, A4s-A5s, KTs, K3s, Q9s, Q5s, J9s+, T6s, 97s+, 76s, 62s, 54s, KQo, QTo
Always call
JJ+, AKs, KQs, AKo
Mixed
88-99, ATs-AQs, A3s, QTs+, Q8s, Q6s, J8s, AQo
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.

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.