BTN vs CO open 2.5bb
6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · CO opens 2.5bb · Button to act
6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 4.96bbYour cards?
0.5bb
1bb
2.5bb
Tap your two cards.
Button's range
1,326 of 1,326 combos get hereFold 82.6%Call 1.6%Raise 5/7.5bb 15.8%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the button (BTN) when CO opens 2.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?
CO opens 2.5bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the button (BTN) folds 82.6%, calls 1.6% and raises 5/7.5bb 15.8%. Always raise 5/7.5bb: TT+, AJs+, A2s-A8s, KQs, AQo+, ATo, KQo. Mixed: 55-99, A9s-ATs, K5s-KJs, Q9s+, JTs, T9s, 65s, AJo, KTo-KJo, QTo+.
- Always fold
- 22-44, K2s-K4s, Q2s-Q8s, J2s-J9s, T2s-T8s, 92s+, 82s+, 72s+, 62s-64s, 52s+, 42s+, 32s, A2o-A9o, K2o-K9o, Q2o-Q9o, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
- Always call
- No hand plays this every time
- Always raise 5/7.5bb
- TT+, AJs+, A2s-A8s, KQs, AQo+, ATo, KQo
- Mixed
- 55-99, A9s-ATs, K5s-KJs, Q9s+, JTs, T9s, 65s, AJo, KTo-KJo, QTo+
Settings: 6-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 24.92). 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.