PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN 3-bet 9bb

BB vs BTN 3-bet 9bb

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 · 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

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 13.14bbYour cards?

3bb

9bb

0.5bb

Tap your two cards.

Big blind's range

706 of 1,326 combos get here

Fold 76.6%Call 4.4%Raise 20.7bb 14.8%All-in 99.84bb 4.2%

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 3bb, BTN 3-bets to 9bb 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 in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 76.6%, calls 4.4%, raises 20.7bb 14.8% and goes all-in 99.84bb 4.2%. Mixed: 22+, ATs+, A3s-A8s, K6s+, K3s-K4s, Q9s+, Q6s, Q4s, JTs, J7s-J8s, T8s, 76s, 65s, 54s, 43s, AQo+, ATo, KJo.

Always fold: A9s, A2s, K5s, K2s, Q7s-Q8s, Q2s, J9s, J6s, J4s, T9s, T6s-T7s, T2s-T4s, 96s+, 92s, 85s+, 82s-83s, 74s-75s, 72s, 63s-64s, 52s-53s, A4o-A6o, KQo, KTo, QJo, Q9o, J9o+, J7o, T8o+, 87o, 54o
Always call: No hand plays this every time
Always raise 20.7bb: No hand plays this every time
Always all-in 99.84bb: No hand plays this every time
Mixed: 22+, ATs+, A3s-A8s, K6s+, K3s-K4s, Q9s+, Q6s, Q4s, JTs, J7s-J8s, T8s, 76s, 65s, 54s, 43s, AQo+, ATo, 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.