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

BB vs BTN 3-bet 4bb

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 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

Tournament

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

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 7.14bbYour cards?

2bb

4bb

0.5bb

Tap your two cards.

Big blind's range

438 of 1,326 combos get here

Fold 33.1%Call 40.9%Raise 9.2bb 20.4%All-in 99.84bb 5.6%

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

BTN limps, BB isolates to 2bb, BTN 3-bets to 4bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 33.1%, calls 40.9%, raises 9.2bb 20.4% and goes all-in 99.84bb 5.6%. Always call: 88, 22-44, T9s, 97s, KQo. Always raise 9.2bb: AA. Mixed: 99-KK, 55-77, AJs+, A7s-A9s, A2s-A5s, KQs, K6s-KTs, K4s, Q7s+, J7s-J9s, T8s, T2s, 98s, 96s, 93s, 85s-86s, 74s-75s, 65s, 63s, 54s, AQo+, KTo, QJo, JTo.

Always fold: T6s, 62s, 43s, T9o
Always call: 88, 22-44, T9s, 97s, KQo
Always raise 9.2bb: AA
Always all-in 99.84bb: No hand plays this every time
Mixed: 99-KK, 55-77, AJs+, A7s-A9s, A2s-A5s, KQs, K6s-KTs, K4s, Q7s+, J7s-J9s, T8s, T2s, 98s, 96s, 93s, 85s-86s, 74s-75s, 65s, 63s, 54s, AQo+, KTo, QJo, JTo

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.