PokerSolver
PokerSolver/5-max · 60bb · 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) · 60bb · BTN limps, SB isolates to 2.5bb · Big blind to act

5-max · 60bb · 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 64.5%Call 24.8%Raise 5/7.5bb 10.7%
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 60bb?

BTN limps, SB isolates to 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the big blind (BB) folds 64.5%, calls 24.8% and raises 5/7.5bb 10.7%. Always call: 22-99, A8s-ATs, A6s, A4s, A2s, K6s-KJs, K2s, Q9s+, Q7s, J7s-J9s, T8s, 97s+, 85s-86s, 75s, 64s, 53s+, KQo. Always raise 5/7.5bb: TT+, AQs+, AKo. Mixed: AJs, A7s, A5s, A3s, KQs, K3s-K5s, Q8s, Q4s-Q6s, Q2s, JTs, J4s-J6s, T9s, T7s, 95s-96s, 87s, 76s, 74s, 65s, 63s, 52s, 43s, 32s, A7o-AQo, A5o, A3o, K9o-KJo, QTo+, J9o+, T9o.

Always fold
Q3s, J2s-J3s, T2s-T6s, 92s-94s, 82s-84s, 72s-73s, 62s, 42s, A6o, A4o, A2o, K2o-K8o, Q2o-Q9o, J2o-J8o, T2o-T8o, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
22-99, A8s-ATs, A6s, A4s, A2s, K6s-KJs, K2s, Q9s+, Q7s, J7s-J9s, T8s, 97s+, 85s-86s, 75s, 64s, 53s+, KQo
Always raise 5/7.5bb
TT+, AQs+, AKo
Mixed
AJs, A7s, A5s, A3s, KQs, K3s-K5s, Q8s, Q4s-Q6s, Q2s, JTs, J4s-J6s, T9s, T7s, 95s-96s, 87s, 76s, 74s, 65s, 63s, 52s, 43s, 32s, A7o-AQo, A5o, A3o, K9o-KJo, QTo+, J9o+, T9o
Settings: 5-max · 60bb · 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, 60bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.3). 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.