PokerSolver
PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB iso raise 2.5bb

BB vs SB iso raise 2.5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · BTN limps, SB isolates to 2.5bb · 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 · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.3bbYour cards?
1bb
1bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 71%Call 21.5%Raise 5/7.5bb 7.5%
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 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

BTN limps, SB isolates to 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the big blind (BB) folds 71%, calls 21.5% and raises 5/7.5bb 7.5%. Always call: A9s, A2s-A3s, AJo, KJo. Always raise 5/7.5bb: AA. Mixed: 22-KK, ATs+, A4s-A8s, K3s+, Q8s+, Q4s-Q6s, Q2s, J8s+, J3s-J4s, T7s+, 96s+, 92s, 84s-86s, 75s+, 64s+, 52s+, AQo+, A9o-ATo, A7o, A4o-A5o, KQo, K9o-KTo, QTo+, J9o+, T8o+, 97o, 87o, 76o, 64o, 54o.

Always fold
K2s, Q7s, Q3s, J5s-J7s, J2s, T2s-T6s, 93s-95s, 87s, 82s-83s, 72s-74s, 62s-63s, 42s+, 32s, A8o, A6o, A2o-A3o, K2o-K8o, Q2o-Q9o, J2o-J8o, T2o-T7o, 98o, 92o-96o, 82o-86o, 72o-75o, 65o, 62o-63o, 52o-53o, 42o+, 32o
Always call
A9s, A2s-A3s, AJo, KJo
Always raise 5/7.5bb
AA
Mixed
22-KK, ATs+, A4s-A8s, K3s+, Q8s+, Q4s-Q6s, Q2s, J8s+, J3s-J4s, T7s+, 96s+, 92s, 84s-86s, 75s+, 64s+, 52s+, AQo+, A9o-ATo, A7o, A4o-A5o, KQo, K9o-KTo, QTo+, J9o+, T8o+, 97o, 87o, 76o, 64o, 54o
Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.