PokerSolver
PokerSolver/5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 3-bet 4bb

BB vs BTN 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · BTN limps, BB isolates to 2bb, BTN 3-bets to 4bb · Big blind to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.3bbYour cards?
2bb
4bb
0.5bb

Tap your two cards.

Big blind's range

438 of 1,326 combos get here
Fold 30.6%Call 35.2%Raise 9.2bb 22.8%All-in 79.84bb 11.4%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN limps, BB isolates to 2bb, BTN 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

BTN limps, BB isolates to 2bb, BTN 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 30.6%, calls 35.2%, raises 9.2bb 22.8% and goes all-in 79.84bb 11.4%. Always call: 66. Mixed: JJ-KK, 77-99, 44-55, 22, AKs, A8s-ATs, A2s-A6s, K5s-KJs, K3s, Q7s+, Q4s, J7s-J9s, T9s, T7s, T5s, 96s+, 76s, 54s, AJo+, A9o, A5o, KQo, QTo+, JTo, T9o.

Always fold
87s, 75s, 63s, 43s
Always call
66
Always raise 9.2bb
No hand plays this every time
Always all-in 79.84bb
No hand plays this every time
Mixed
JJ-KK, 77-99, 44-55, 22, AKs, A8s-ATs, A2s-A6s, K5s-KJs, K3s, Q7s+, Q4s, J7s-J9s, T9s, T7s, T5s, 96s+, 76s, 54s, AJo+, A9o, A5o, KQo, QTo+, JTo, T9o
Settings: 5-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.