PokerSolver
PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/CO vs BTN 4-bet 17.25bb

CO vs BTN 4-bet 17.25bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · CO limps, BTN isolates to 2.5bb, CO 3-bets to 7.5bb, BTN 4-bets to 17.25bb · Cutoff to act

5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 27.05bbYour cards?
7.5bb
17.25bb
0.5bb
1bb

Tap your two cards.

Cutoff's range

280 of 1,326 combos get here
Fold 43.4%Call 42%Raise 37.95bb 14.7%All-in 199.84bb 0%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the cutoff (CO) when CO limps, BTN isolates to 2.5bb, CO 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

CO limps, BTN isolates to 2.5bb, CO 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the cutoff (CO) folds 43.4%, calls 42% and raises 37.95bb 14.7%. Always call: 44-QQ, AQs, QJs, 65s. Always raise 37.95bb: AA, A2s. Mixed: KK, AKs, A6s-ATs, A3s-A4s, KJs, Q9s, J9s+, T8s+, AJo-AQo.

Always fold
K7s-K9s, Q8s, KQo, JTo
Always call
44-QQ, AQs, QJs, 65s
Always raise 37.95bb
AA, A2s
Mixed
KK, AKs, A6s-ATs, A3s-A4s, KJs, Q9s, J9s+, T8s+, AJo-AQo
Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.