PokerSolver/5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB iso raise 3bb

BB vs SB iso raise 3bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · BTN limps, SB isolates to 3bb · Big blind to act

5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differHJCOBTNSBBB

Pot 5.8bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 70.9%Call 20.4%Raise 6/9bb 8.7%

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 3bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

BTN limps, SB isolates to 3bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 70.9%, calls 20.4% and raises 6/9bb 8.7%. Always call: 22-TT, A5s-AJs, KQs, K6s-KTs, Q9s+, J9s, T8s, 97s+, 87s, 75s, 64s, 53s, ATo, KQo. Always raise 6/9bb: JJ+, AQs+, AKo. Mixed: A2s-A4s, KJs, K2s-K5s, Q6s-Q8s, JTs, J7s-J8s, T9s, T6s-T7s, 96s, 86s, 76s, 65s, 63s, 54s, 43s, AJo-AQo, A9o, A3o-A5o, KTo-KJo, QTo+, JTo.

Always fold: Q2s-Q5s, J2s-J6s, T2s-T5s, 92s-95s, 82s-85s, 72s-74s, 62s, 52s, 42s, 32s, A6o-A8o, A2o, K2o-K9o, Q2o-Q9o, J2o-J9o, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 22-TT, A5s-AJs, KQs, K6s-KTs, Q9s+, J9s, T8s, 97s+, 87s, 75s, 64s, 53s, ATo, KQo
Always raise 6/9bb: JJ+, AQs+, AKo
Mixed: A2s-A4s, KJs, K2s-K5s, Q6s-Q8s, JTs, J7s-J8s, T9s, T6s-T7s, 96s, 86s, 76s, 65s, 63s, 54s, 43s, AJo-AQo, A9o, A3o-A5o, KTo-KJo, QTo+, JTo

Settings: 5-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.