BTN vs BB 4-bet 20.7bb
4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN limps, BB isolates to 3bb, BTN 3-bets to 9bb, BB 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
4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 30.84bbYour cards?
9bb
0.5bb
20.7bb
Tap your two cards.
Button's range
158 of 1,326 combos get hereFold 32.8%Call 51%All-in 99.84bb 16.2%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the button (BTN) when BTN limps, BB isolates to 3bb, BTN 3-bets to 9bb, BB 4-bets to 20.7bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?
BTN limps, BB isolates to 3bb, BTN 3-bets to 9bb, BB 4-bets to 20.7bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the button (BTN) folds 32.8%, calls 51% and goes all-in 99.84bb 16.2%. Always call: AA, TT, A6s, AQo. Always all-in 99.84bb: AKo. Mixed: JJ-KK, K2s-K3s, Q4s, A5o, KJo.
- Always fold
- No hand plays this every time
- Always call
- AA, TT, A6s, AQo
- Always all-in 99.84bb
- AKo
- Mixed
- JJ-KK, K2s-K3s, Q4s, A5o, KJo
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.