BB vs SB all-in
4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb, SB goes all-in · Big blind to act
Fits exactlyno game we have checked
CloseCP1 games
- CPCoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 267.73bbYour cards?
17.25bb
249.84bb
Tap your two cards.
Big blind's range
424 of 1,326 combos get hereFold 93.4%Call 6.6%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the big blind (BB) when SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?
SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 93.4% and calls 6.6%. Always call: KK+, AKs. Mixed: TT, AJs, AKo.
- Always fold
- JJ-QQ, 55-99, 33, AQs, A7s-A8s, A5s, A3s, KJs+, K9s, K6s-K7s, K3s-K4s, Q9s, Q7s, Q4s, J9s, J6s, T9s, 98s, 86s+, 75s+, 65s, 54s, AQo, A7o-A9o, K9o+, QTo+
- Always call
- KK+, AKs
- Mixed
- TT, AJs, AKo
Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.