PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO 3-bet 9bb

BB vs CO 3-bet 9bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 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

5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differHJCOBTNSBBB

Pot 13.3bbYour cards?

3bb

9bb

0.5bb

Tap your two cards.

Big blind's range

488 of 1,326 combos get here

Fold 75.9%Call 5.4%Raise 20.7bb 13.6%All-in 99.84bb 5.1%

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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO limps, BB isolates to 3bb, CO 3-bets to 9bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 75.9%, calls 5.4%, raises 20.7bb 13.6% and goes all-in 99.84bb 5.1%. Always all-in 99.84bb: KK. Mixed: AA, 55-QQ, A9s+, A6s-A7s, A2s-A4s, K8s+, K4s-K5s, QTs+, Q7s-Q8s, JTs, J5s, T7s+, T5s, 75s, 53s, AQo+, KTo.

Always fold: 33-44, A8s, A5s, K6s, K2s, Q9s, Q6s, Q4s, J8s-J9s, T6s, T4s, 95s+, 86s+, 76s, 64s+, 54s, 42s, A8o-AJo, KJo+, QTo+, JTo
Always call: No hand plays this every time
Always raise 20.7bb: No hand plays this every time
Always all-in 99.84bb: KK
Mixed: AA, 55-QQ, A9s+, A6s-A7s, A2s-A4s, K8s+, K4s-K5s, QTs+, Q7s-Q8s, JTs, J5s, T7s+, T5s, 75s, 53s, AQo+, KTo

Settings: 5-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.