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 3bb, BTN 3-bets to 9bb, BB 4-bets to 20.7bb, 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
Tournament
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 121.84bbYour cards?
20.7bb
99.84bb
0.5bb

Tap your two cards.

Big blind's range

418 of 1,326 combos get here
Fold 73.8%Call 26.2%
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 3bb, BTN 3-bets to 9bb, BB 4-bets to 20.7bb, BTN goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

BTN limps, BB isolates to 3bb, BTN 3-bets to 9bb, BB 4-bets to 20.7bb, BTN goes all-in in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 73.8% and calls 26.2%. Always call: JJ+, 77-99, AKs, AKo. Mixed: TT, 55-66, AJs-AQs, A7s, A5s, KJs, K5s, QTs+, J9s+, T8s, T6s, 98s, 64s+, ATo-AQo.

Always fold
ATs, A6s, A2s-A4s, KQs, K6s-KTs, K3s-K4s, Q7s-Q9s, J6s-J8s, T9s, T7s, T4s, 94s-97s, 86s+, 75s+, 53s+, A7o, KTo+, QJo
Always call
JJ+, 77-99, AKs, AKo
Mixed
TT, 55-66, AJs-AQs, A7s, A5s, KJs, K5s, QTs+, J9s+, T8s, T6s, 98s, 64s+, ATo-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.

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.