PokerSolver
PokerSolver/3-handed · 100bb · SB 0.4bb · 5% rake, cap 10bb/BTN vs SB all-in

BTN vs SB all-in

3-handed · SB 0.4bb · 5% rake, cap 10bb (blinds 0.4/1bb) · 100bb · BTN opens 3bb, SB 3-bets to 9bb, BTN 4-bets to 20.6bb, SB goes all-in · Button to act

3-handed · 100bb · SB 0.4bb · 5% rake, cap 10bbChange game
Stacks (bb), if they differ
Pot 121.6bbYour cards?
20.6bb
100bb
1bb

Tap your two cards.

Button's range

510 of 1,326 combos get here
Fold 85.3%Call 14.7%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when BTN opens 3bb, SB 3-bets to 9bb, BTN 4-bets to 20.6bb, SB goes all-in in 3-handed · SB 0.4bb · 5% rake, cap 10bb at 100bb?

BTN opens 3bb, SB 3-bets to 9bb, BTN 4-bets to 20.6bb, SB goes all-in in 3-handed · SB 0.4bb · 5% rake, cap 10bb, 100bb: the button (BTN) folds 85.3% and calls 14.7%. Always call: JJ+, 99, AQs, AKo. Mixed: TT, 55, AKs, A8s, KTs, K4s, QJs, 76s, AQo.

Always fold
33, A9s-ATs, A6s-A7s, A2s-A3s, KJs+, K5s-K9s, K2s-K3s, Q7s-QTs, Q2s-Q4s, J9s, J7s, J4s, T7s-T8s, T2s, 86s, 73s, 64s, 53s, A8o-AJo, A2o-A5o, KJo+, K6o-K7o, QTo
Always call
JJ+, 99, AQs, AKo
Mixed
TT, 55, AKs, A8s, KTs, K4s, QJs, 76s, AQo
Settings: 3-handed · 100bb · SB 0.4bb · 5% rake, cap 10bb (small blind 0.4bb, big blind 1bb, 100bb stacks, 5% rake capped at 10bb; before the flop, rake only after a 3-bet). Solver: HoldemResources Calculator (HRC). 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: GGPoker regular cash NL5 (rake cap 5bb there, 10bb here).

Close: CoinPoker cash NL5 (rake cap 6bb there, 10bb here; only its tables without antes).

Close: Natural8 regular cash NL5 (rake cap 5bb there, 10bb here).

Close: ACR Poker cash NL5 (rake cap 20bb there, 10bb here; its page does not say whether pots that end before the flop are raked).

Rake sources: ggpoker.com/poker-games/texas-holdem (fetched 2026-10-31); Rush rake and preflop rake confirmed on our own GG exports (972 of 1,034 pots, 210 of 211); regular tables' preflop rule from natural8.com/en/poker/texas-holdem (same network, fetched 2026-10-31); coinpoker.com/games/texas-holdem/ (caps and the preflop rule) and coinpoker.com/guides/poker-rake/ (5%), fetched 2026-10-31; natural8.com/en/poker/texas-holdem (fetched 2026-10-31; caps by players dealt in, 3-bet pots raked before the flop); acrpoker.eu/real-money/poker-rake-calculation/ (fetched 2026-10-31).

Rake: Wrong rake for a 3-handed GG table: this solve caps the rake at 10bb, which is right only for a 6-max hand folded to the button. GG caps an NL5 table with 3 players dealt in at $0.25 (5bb). A solve with GG's cap is queued.