PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BTN vs CO 3-bet 5bb

BTN vs CO 3-bet 5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb · Button to act

Fits exactlyno game we have checked
Close1 games
  • CoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
Tournament
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 9.8bbYour cards?
2.5bb
0.5bb
1bb
5bb

Tap your two cards.

Button's range

418 of 1,326 combos get here
Fold 12.3%Call 64.6%Raise 11.5bb 15.2%All-in 99.84bb 7.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the button (BTN) when CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO limps, BTN isolates to 2.5bb, CO 3-bets to 5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the button (BTN) folds 12.3%, calls 64.6%, raises 11.5bb 15.2% and goes all-in 99.84bb 7.8%. Always call: TT, 22-88, AQs, A6s, A2s, K9s-KTs, Q8s, T8s, 97s+, 75s, KQo. Always raise 11.5bb: AA. Mixed: JJ-KK, 99, AKs, A7s-AJs, A3s-A5s, KJs+, K3s-K8s, Q9s+, J8s+, T9s, T7s, 96s, 86s+, 76s, 64s+, 53s+, A8o+, KTo-KJo, QTo+, JTo.

Always fold
No hand plays this every time
Always call
TT, 22-88, AQs, A6s, A2s, K9s-KTs, Q8s, T8s, 97s+, 75s, KQo
Always raise 11.5bb
AA
Always all-in 99.84bb
No hand plays this every time
Mixed
JJ-KK, 99, AKs, A7s-AJs, A3s-A5s, KJs+, K3s-K8s, Q9s+, J8s+, T9s, T7s, 96s, 86s+, 76s, 64s+, 53s+, A8o+, KTo-KJo, QTo+, JTo
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.

Rake sources for the games it fits: 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.