PokerSolver
PokerSolver/5-max · 100bb · 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) · 100bb · HJ limps, SB isolates to 2.5bb · 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
2.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 83.1%Call 10.9%Raise 5/7.5bb 6%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when HJ limps, SB isolates to 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

HJ limps, SB isolates to 2.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the big blind (BB) folds 83.1%, calls 10.9% and raises 5/7.5bb 6%. Always call: 77-88, 22-55, KTs, QJs. Always raise 5/7.5bb: KK+, AKs, AKo. Mixed: 99-QQ, 66, A2s-AQs, KJs+, K3s-K9s, Q9s-QTs, J9s+, T7s+, 98s, 96s, 86s, 76s, 64s+, 53s+, 43s, AJo-AQo, KJo+.

Always fold
K2s, Q2s-Q8s, J2s-J8s, T2s-T6s, 97s, 92s-95s, 87s, 82s-85s, 72s-75s, 62s-63s, 52s, 42s, 32s, A2o-ATo, K2o-KTo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
77-88, 22-55, KTs, QJs
Always raise 5/7.5bb
KK+, AKs, AKo
Mixed
99-QQ, 66, A2s-AQs, KJs+, K3s-K9s, Q9s-QTs, J9s+, T7s+, 98s, 96s, 86s, 76s, 64s+, 53s+, 43s, AJo-AQo, KJo+
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.