PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB iso raise 2bb

BB vs SB iso raise 2bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, SB isolates to 2bb · 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 4.8bbYour cards?

1bb

2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 70.4%Call 19.1%Raise 4/6bb 10.5%

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, SB isolates to 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO limps, SB isolates to 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 70.4%, calls 19.1% and raises 4/6bb 10.5%. Always call: 22-88, ATs-AJs, A6s, K3s-K4s, Q9s-QTs, KQo, QTo. Always raise 4/6bb: QQ+, AKs, AKo. Mixed: 99-JJ, AQs, A7s-A9s, A2s-A5s, K5s+, K2s, QJs, Q2s-Q8s, J7s+, T7s+, 95s+, 85s+, 75s+, 63s+, 54s, 42s+, A9o-AQo, A7o, A5o, KTo-KJo, QJo, JTo, T9o, 86o, 64o+, 53o+.

Always fold: J2s-J6s, T2s-T6s, 92s-94s, 82s-84s, 72s-74s, 62s, 52s-53s, 32s, A8o, A6o, A2o-A4o, K2o-K9o, Q2o-Q9o, J2o-J9o, T2o-T8o, 92o+, 87o, 82o-85o, 72o+, 62o-63o, 52o, 42o+, 32o
Always call: 22-88, ATs-AJs, A6s, K3s-K4s, Q9s-QTs, KQo, QTo
Always raise 4/6bb: QQ+, AKs, AKo
Mixed: 99-JJ, AQs, A7s-A9s, A2s-A5s, K5s+, K2s, QJs, Q2s-Q8s, J7s+, T7s+, 95s+, 85s+, 75s+, 63s+, 54s, 42s+, A9o-AQo, A7o, A5o, KTo-KJo, QJo, JTo, T9o, 86o, 64o+, 53o+

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.