PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN vs BB call

BTN vs BB call

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN limps, SB isolates to 2.5bb, BB calls · Button to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 6.64bbYour cards?
1bb
2.5bb
2.5bb

Tap your two cards.

Button's range

596 of 1,326 combos get here
Fold 14.3%Call 66.8%Raise 5/7.5bb 18.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when BTN limps, SB isolates to 2.5bb, BB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

BTN limps, SB isolates to 2.5bb, BB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the button (BTN) folds 14.3%, calls 66.8% and raises 5/7.5bb 18.9%. Always call: 66, 22-44, A6s-A7s, A2s, K2s-K8s, Q5s-Q8s, Q3s, J7s, T6s-T7s, 96s, 85s-86s, 74s, 43s, A8o-A9o, A4o, KTo-KJo, QTo+, JTo, 98o, 87o, 76o. Always raise 5/7.5bb: 88+, AQs+, ATo+. Mixed: 77, Q4s, Q2s, J8s, J4s-J6s, J2s, 95s, 75s, 64s, A7o, A5o, A3o, K9o, T9o.

Always fold
K8o
Always call
66, 22-44, A6s-A7s, A2s, K2s-K8s, Q5s-Q8s, Q3s, J7s, T6s-T7s, 96s, 85s-86s, 74s, 43s, A8o-A9o, A4o, KTo-KJo, QTo+, JTo, 98o, 87o, 76o
Always raise 5/7.5bb
88+, AQs+, ATo+
Mixed
77, Q4s, Q2s, J8s, J4s-J6s, J2s, 95s, 75s, 64s, A7o, A5o, A3o, K9o, T9o
Settings: 4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.