PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB call

BB vs SB call

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, BTN isolates to 3bb, SB calls · Big blind to act

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

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differHJCOBTNSBBB

Pot 8.8bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 85.5%Call 5.5%Raise 6/9bb 8.9%

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, BTN isolates to 3bb, SB calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO limps, BTN isolates to 3bb, SB calls in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 85.5%, calls 5.5% and raises 6/9bb 8.9%. Always call: 88, 44-55. Always raise 6/9bb: JJ+, AKs, AJs, AKo. Mixed: 99-TT, 66-77, 22-33, AQs, A7s-ATs, A2s-A5s, KTs+, K7s-K8s, K4s-K5s, Q8s+, Q6s, Q4s, J9s+, J3s, T8s+, 98s, 96s, 86s+, 74s, 65s, 43s, 32s, AJo-AQo, A8o, KJo+, JTo.

Always fold: A6s, K9s, K6s, K2s-K3s, Q7s, Q5s, Q2s-Q3s, J4s-J8s, J2s, T2s-T7s, 97s, 92s-95s, 82s-85s, 75s+, 72s-73s, 62s-64s, 52s+, 42s, A9o-ATo, A2o-A7o, K2o-KTo, Q2o+, J2o-J9o, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 88, 44-55
Always raise 6/9bb: JJ+, AKs, AJs, AKo
Mixed: 99-TT, 66-77, 22-33, AQs, A7s-ATs, A2s-A5s, KTs+, K7s-K8s, K4s-K5s, Q8s+, Q6s, Q4s, J9s+, J3s, T8s+, 98s, 96s, 86s+, 74s, 65s, 43s, 32s, AJo-AQo, A8o, KJo+, JTo

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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.