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

BB vs CO 3-bet 9bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, BB isolates to 3bb, CO 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

494 of 1,326 combos get here

Fold 76.1%Call 5%Raise 20.7bb 12.3%All-in 99.84bb 6.6%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO limps, BB isolates to 3bb, CO 3-bets to 9bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

CO limps, BB isolates to 3bb, CO 3-bets to 9bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 76.1%, calls 5%, raises 20.7bb 12.3% and goes all-in 99.84bb 6.6%. Mixed: TT+, 88, 33-66, ATs+, A4s-A8s, A2s, KJs+, K7s-K8s, K5s, K3s, Q7s, Q4s, JTs, J8s, J6s, T9s, T7s, 97s, 86s+, 53s+, AJo+, A8o.

Always fold: 99, 77, A9s, A3s, KTs, K6s, Q8s+, J9s, J7s, J5s, J2s, T8s, T6s, 98s, 96s, 76s, 62s+, 52s, 32s, ATo, KQo, KTo, QTo, J9o+
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: TT+, 88, 33-66, ATs+, A4s-A8s, A2s, KJs+, K7s-K8s, K5s, K3s, Q7s, Q4s, JTs, J8s, J6s, T9s, T7s, 97s, 86s+, 53s+, AJo+, A8o

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.