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

BB vs BTN 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, BTN 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 5.3bbYour cards?
1bb
1bb
2bb
0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 48%Call 41.4%Raise 4/6bb 10.6%
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, BTN isolates to 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO limps, BTN isolates to 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 48%, calls 41.4% and raises 4/6bb 10.6%. Always call: 22-44, A6s, A2s, K6s, K2s-K4s, Q9s, Q2s, J6s-J7s, T7s, 97s, 95s, 87s, A7o-AJo, A5o, KTo-KJo, Q9o, J9o+, T9o, 64o+. Always raise 4/6bb: QQ+, 99, AQs+, A9s-ATs, KQs, T9s, AKo. Mixed: TT-JJ, 55-88, AJs, A7s-A8s, A3s-A5s, K7s-KJs, K5s, QTs+, Q3s-Q8s, J8s+, J2s-J5s, T8s, T2s-T6s, 98s, 96s, 93s-94s, 83s-86s, 73s+, 62s+, 52s+, 42s+, AQo, A6o, A3o-A4o, KQo, K7o-K9o, QTo+, Q8o, T8o, 97o+, 86o+, 75o+, 53o+.

Always fold
92s, 82s, 72s, 32s, A2o, K2o-K6o, Q2o-Q7o, J2o-J8o, T2o-T7o, 92o-96o, 82o-85o, 72o-74o, 62o-63o, 52o, 42o+, 32o
Always call
22-44, A6s, A2s, K6s, K2s-K4s, Q9s, Q2s, J6s-J7s, T7s, 97s, 95s, 87s, A7o-AJo, A5o, KTo-KJo, Q9o, J9o+, T9o, 64o+
Always raise 4/6bb
QQ+, 99, AQs+, A9s-ATs, KQs, T9s, AKo
Mixed
TT-JJ, 55-88, AJs, A7s-A8s, A3s-A5s, K7s-KJs, K5s, QTs+, Q3s-Q8s, J8s+, J2s-J5s, T8s, T2s-T6s, 98s, 96s, 93s-94s, 83s-86s, 73s+, 62s+, 52s+, 42s+, AQo, A6o, A3o-A4o, KQo, K7o-K9o, QTo+, Q8o, 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.