SB vs BTN all-in
4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN opens 2.5bb, SB 3-bets to 5bb, BTN goes all-in · Small 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 106.48bbYour cards?
5bb
1bb
99.84bb
Tap your two cards.
Small blind's range
284 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 small blind (SB) when BTN opens 2.5bb, SB 3-bets to 5bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?
BTN opens 2.5bb, SB 3-bets to 5bb, BTN goes all-in in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the small blind (SB) folds 83% and calls 17%. Always call: JJ+, AKs, AKo. Mixed: TT, 77-88, 44, AQs.
- Always fold
- 99, 55-66, A7s-AJs, A3s-A4s, K8s-KJs, Q9s+, J9s+, T9s, 65s, ATo-AQo, KJo+
- Always call
- JJ+, AKs, AKo
- Mixed
- TT, 77-88, 44, AQs
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.