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) · 100bb · SB opens 2.5bb, BB 3-bets to 5bb, 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 · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 105.48bbYour cards?
5bb
99.84bb
Tap your two cards.
Big blind's range
870 of 1,326 combos get hereFold 93.3%Call 6.7%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the big blind (BB) when SB opens 2.5bb, BB 3-bets to 5bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?
SB opens 2.5bb, BB 3-bets to 5bb, SB goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 93.3% and calls 6.7%. Always call: JJ+, AQs+, AKo. Mixed: 77-TT, AQo.
- Always fold
- 44-66, A2s-AJs, K8s+, K3s-K6s, Q7s+, Q5s, Q2s-Q3s, J8s+, J6s, J2s-J4s, T7s+, T5s, T2s-T3s, 98s, 95s-96s, 93s, 82s+, 74s+, 63s+, 54s, 43s, A9o-AJo, A4o-A6o, A2o, KQo, K2o-K6o, Q8o, Q6o, Q3o-Q4o, J8o+, J4o-J6o, T6o+, T4o, 96o-97o, 76o, 53o
- Always call
- JJ+, AQs+, AKo
- Mixed
- 77-TT, 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.