BB vs SB all-in
Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB opens 2.5bb, BB 3-bets to 7.5bb, SB goes all-in · Big blind to act
Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 87.66bbYour cards?
7.5bb
79.84bb
Tap your two cards.
Big blind's range
922 of 1,326 combos get hereFold 89.2%Call 10.8%
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 7.5bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 80bb?
SB opens 2.5bb, BB 3-bets to 7.5bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 80bb: the big blind (BB) folds 89.2% and calls 10.8%. Always call: 99+, AQs+, AQo+. Mixed: 55-88, A8s-AJs, KJs+, QTs+, T9s, AJo.
- Always fold
- 22-44, A2s-A7s, K2s-KTs, Q5s-Q9s, Q2s-Q3s, J5s+, J2s-J3s, T4s-T8s, T2s, 92s+, 82s+, 73s+, 62s+, 52s+, 42s+, 32s, A3o-ATo, K7o+, K5o, K3o, Q7o+, J7o+, T7o+, 96o+, 86o+, 75o+, 64o+
- Always call
- 99+, AQs+, AQo+
- Mixed
- 55-88, A8s-AJs, KJs+, QTs+, T9s, AJo
Settings: Heads-up · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 80bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 22.38). 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.