BTN vs SB 4-bet 20.7bb
5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · BTN limps, SB isolates to 3bb, BTN 3-bets to 9bb, SB 4-bets to 20.7bb · Button 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
5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 31.5bbYour cards?
9bb
20.7bb
1bb
Tap your two cards.
Button's range
330 of 1,326 combos get hereFold 39.4%Call 51.6%Raise 45.54bb 9.1%All-in 199.84bb 0%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the button (BTN) when BTN limps, SB isolates to 3bb, BTN 3-bets to 9bb, SB 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?
BTN limps, SB isolates to 3bb, BTN 3-bets to 9bb, SB 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the button (BTN) folds 39.4%, calls 51.6% and raises 45.54bb 9.1%. Always call: TT, 33, A6s, A2s, K9s, T8s, 64s, 43s. Always raise 45.54bb: KK+. Mixed: QQ, AKs, K3s, J7s, AQo+, QTo+.
- Always fold
- Q3s, A7o, KTo, T9o
- Always call
- TT, 33, A6s, A2s, K9s, T8s, 64s, 43s
- Always raise 45.54bb
- KK+
- Mixed
- QQ, AKs, K3s, J7s, AQo+, QTo+
Settings: 5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.