PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BTN open (RFI)

BTN open (RFI)

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

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 2.14bbYour cards?
0.5bb
1bb

Tap your two cards.

Button's range

1,326 of 1,326 combos get here
Fold 48.4%Call 5.1%Raise 2/2.5/3bb 46.6%
Tap a hand, or type one above, to see its exact mix.

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

Folded to BTN in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the button (BTN) folds 48.4%, calls 5.1% and raises 2/2.5/3bb 46.6%. Always call: K2s. Always raise 2/2.5/3bb: 55+, 22, A7s+, A2s-A5s, K7s+, Q8s+, Q2s-Q3s, J8s+, J3s-J6s, T7s+, T5s, 97s+, 95s, 86s+, 76s, 64s+, 53s+, ATo+, A6o-A7o, A2o-A4o, KQo, K6o-K9o, Q8o-Q9o, J8o-J9o, T8o. Mixed: 33-44, A6s, K3s-K6s, Q4s-Q7s, J7s, J2s, T6s, T4s, 96s, 85s, 75s, 43s, A8o-A9o, A5o, KTo-KJo, K5o, QTo+, JTo, J7o, T9o, T7o, 98o.

Always fold
T2s-T3s, 92s-94s, 82s-84s, 72s-74s, 62s-63s, 52s, 42s, 32s, K2o-K4o, Q2o-Q7o, J2o-J6o, T2o-T6o, 92o-97o, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
K2s
Always raise 2/2.5/3bb
55+, 22, A7s+, A2s-A5s, K7s+, Q8s+, Q2s-Q3s, J8s+, J3s-J6s, T7s+, T5s, 97s+, 95s, 86s+, 76s, 64s+, 53s+, ATo+, A6o-A7o, A2o-A4o, KQo, K6o-K9o, Q8o-Q9o, J8o-J9o, T8o
Mixed
33-44, A6s, K3s-K6s, Q4s-Q7s, J7s, J2s, T6s, T4s, 96s, 85s, 75s, 43s, A8o-A9o, A5o, KTo-KJo, K5o, QTo+, JTo, J7o, T9o, T7o, 98o
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.