PokerSolver
PokerSolver/5-max · 250bb · 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) · 250bb · CO limps, BTN isolates to 2bb · 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 · 250bb · 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 67.5%Call 25.6%Raise 4/6bb 6.9%
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 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 250bb?

CO limps, BTN isolates to 2bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 250bb: the big blind (BB) folds 67.5%, calls 25.6% and raises 4/6bb 6.9%. Always call: KK, 22, K9s, K5s, K3s, Q8s, Q4s, 97s, 86s, 64s, 43s, AKo, A9o-AJo, KTo-KJo, QTo+. Always raise 4/6bb: KJs. Mixed: AA, 33-QQ, A2s+, KQs, KTs, K6s-K8s, K4s, K2s, Q9s+, Q5s-Q7s, Q2s-Q3s, J8s+, J4s, T7s+, 98s, 94s-96s, 87s, 84s-85s, 74s+, 65s, 62s-63s, 53s+, AQo, A4o-A8o, KQo, JTo, T9o, 87o, 65o.

Always fold
J5s-J7s, J2s-J3s, T2s-T6s, 92s-93s, 82s-83s, 72s-73s, 52s, 42s, 32s, A2o-A3o, K2o-K9o, Q2o-Q9o, J2o-J9o, T2o-T8o, 92o+, 82o-86o, 72o+, 62o-64o, 52o+, 42o+, 32o
Always call
KK, 22, K9s, K5s, K3s, Q8s, Q4s, 97s, 86s, 64s, 43s, AKo, A9o-AJo, KTo-KJo, QTo+
Always raise 4/6bb
KJs
Mixed
AA, 33-QQ, A2s+, KQs, KTs, K6s-K8s, K4s, K2s, Q9s+, Q5s-Q7s, Q2s-Q3s, J8s+, J4s, T7s+, 98s, 94s-96s, 87s, 84s-85s, 74s+, 65s, 62s-63s, 53s+, AQo, A4o-A8o, KQo, JTo, T9o, 87o, 65o
Settings: 5-max · 250bb · 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, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.