PokerSolver
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 · BTN limps, SB isolates to 2bb · Big blind to act

5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 4.8bbYour cards?
1bb
1bb
2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 52.8%Call 32.3%Raise 4/6bb 14.8%
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, SB isolates to 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

BTN limps, SB isolates to 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 52.8%, calls 32.3% and raises 4/6bb 14.8%. Always call: 22-77, A6s, A2s, K4s-K7s, QTs, Q8s, J2s, 84s, 64s, ATo, QTo, 65o. Always raise 4/6bb: TT+, AQs+, KQs, JTs, J7s, T9s, 87s, AQo+. Mixed: 88-99, A7s-AJs, A3s-A5s, K8s-KJs, K2s-K3s, QJs, Q9s, Q2s-Q7s, J8s-J9s, J3s-J6s, T6s-T8s, T3s, 95s+, 85s-86s, 73s+, 65s, 63s, 52s+, 42s+, 32s, AJo, A4o-A9o, K9o+, K6o, QJo, Q8o-Q9o, J8o+, T8o+, 97o+, 86o+, 75o+, 53o+.

Always fold
T4s-T5s, T2s, 92s-94s, 82s-83s, 72s, 62s, A2o-A3o, K7o-K8o, K2o-K5o, Q2o-Q7o, J2o-J7o, T2o-T7o, 92o-96o, 82o-85o, 72o-74o, 62o-64o, 52o, 42o+, 32o
Always call
22-77, A6s, A2s, K4s-K7s, QTs, Q8s, J2s, 84s, 64s, ATo, QTo, 65o
Always raise 4/6bb
TT+, AQs+, KQs, JTs, J7s, T9s, 87s, AQo+
Mixed
88-99, A7s-AJs, A3s-A5s, K8s-KJs, K2s-K3s, QJs, Q9s, Q2s-Q7s, J8s-J9s, J3s-J6s, T6s-T8s, T3s, 95s+, 85s-86s, 73s+, 65s, 63s, 52s+, 42s+, 32s, AJo, A4o-A9o, K9o+, K6o, QJo, Q8o-Q9o, J8o+, T8o+, 97o+, 86o+, 75o+, 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.