BB vs BTN all-in
4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN opens 2.5bb, BB 3-bets to 5bb, BTN goes all-in · Big blind to act
4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 255.98bbYour cards?
5bb
249.84bb
0.5bb
Tap your two cards.
Big blind's range
380 of 1,326 combos get hereFold 93.9%Call 6.1%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the big blind (BB) when BTN opens 2.5bb, BB 3-bets to 5bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?
BTN opens 2.5bb, BB 3-bets to 5bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 93.9% and calls 6.1%. Always call: KK+. Mixed: JJ-QQ, AKs, AKo.
- Always fold
- 44-TT, A7s-AQs, A3s-A5s, K8s+, K5s-K6s, Q8s+, J6s+, T8s+, 98s, 96s, 85s+, 75s+, 64s+, 53s+, AJo-AQo, A9o, KQo, QJo, T9o, 98o
- Always call
- KK+
- Mixed
- JJ-QQ, AKs, 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.
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.