PokerSolver
PokerSolver/6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB iso raise 2.5bb

BB vs SB iso raise 2.5bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · UTG limps, SB isolates to 2.5bb · Big blind to act

6-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 5.46bbYour cards?
1bb
1bb
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 80.8%Call 13.6%Raise 5/7.5bb 5.7%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when UTG limps, SB isolates to 2.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

UTG limps, SB isolates to 2.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the big blind (BB) folds 80.8%, calls 13.6% and raises 5/7.5bb 5.7%. Always call: 77-99, 22-55, A8s-A9s, A6s, 97s. Always raise 5/7.5bb: KK+, AKs. Mixed: TT-QQ, 66, ATs-AQs, A7s, A2s-A5s, K4s+, QTs+, J8s+, T7s+, 98s, 86s+, 75s+, 63s+, 53s+, 43s, AJo+, KQo, JTo.

Always fold
K2s-K3s, Q2s-Q9s, J2s-J7s, T2s-T6s, 92s-96s, 82s-85s, 72s-74s, 62s, 52s, 42s, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o-J9o, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
77-99, 22-55, A8s-A9s, A6s, 97s
Always raise 5/7.5bb
KK+, AKs
Mixed
TT-QQ, 66, ATs-AQs, A7s, A2s-A5s, K4s+, QTs+, J8s+, T7s+, 98s, 86s+, 75s+, 63s+, 53s+, 43s, AJo+, KQo, JTo
Settings: 6-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.4). 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.