PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN all-in

BB vs BTN all-in

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN limps, BB isolates to 2bb, BTN 3-bets to 4bb, BB 4-bets to 9.2bb, BTN goes all-in · Big blind to act

5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 110.34bbYour cards?
9.2bb
99.84bb
0.5bb

Tap your two cards.

Big blind's range

278 of 1,326 combos get here
Fold 77.2%Call 22.8%
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 2bb, BTN 3-bets to 4bb, BB 4-bets to 9.2bb, BTN goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

BTN limps, BB isolates to 2bb, BTN 3-bets to 4bb, BB 4-bets to 9.2bb, BTN goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 77.2% and calls 22.8%. Always call: KK+, JJ. Mixed: QQ, 88-TT, 66, A9s, KJs, Q7s-Q8s, 86s, AQo+.

Always fold
55, A6s-A7s, A4s, KTs, K7s-K8s, Q9s, J9s, T8s, 97s, 64s+, ATo, KQo, QTo+, JTo
Always call
KK+, JJ
Mixed
QQ, 88-TT, 66, A9s, KJs, Q7s-Q8s, 86s, AQo+
Settings: 5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.

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.