BB vs SB all-in
Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (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
Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 105.16bbYour cards?
5bb
99.84bb
Tap your two cards.
Big blind's range
630 of 1,326 combos get hereFold 83%Call 17%
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 Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?
SB opens 2.5bb, BB 3-bets to 5bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the big blind (BB) folds 83% and calls 17%. Always call: TT+, AQs+, KQs, AKo, AJo. Mixed: 55-99, ATs, KJs, ATo, KQo.
- Always fold
- 33-44, A2s-A9s, K4s-KTs, Q7s+, Q3s, J7s+, T4s+, 94s+, 85s+, 75s+, 64s+, 53s+, 43s, A5o-A9o, K9o-KJo, K7o, Q7o+, JTo, J8o, T8o+, 98o, 86o, 76o
- Always call
- TT+, AQs+, KQs, AKo, AJo
- Mixed
- 55-99, ATs, KJs, ATo, KQo
Settings: Heads-up · 100bb · 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, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.