PokerSolver
PokerSolver/5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs CO 3-bet 4bb

BB vs CO 3-bet 4bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · CO limps, BB isolates to 2bb, CO 3-bets to 4bb · Big blind 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
5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 7.3bbYour cards?
2bb
4bb
0.5bb

Tap your two cards.

Big blind's range

454 of 1,326 combos get here
Fold 50.2%Call 26.1%Raise 9.2bb 17.6%All-in 59.84bb 6.2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO limps, BB isolates to 2bb, CO 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 60bb?

CO limps, BB isolates to 2bb, CO 3-bets to 4bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the big blind (BB) folds 50.2%, calls 26.1%, raises 9.2bb 17.6% and goes all-in 59.84bb 6.2%. Always call: 88, 44, AJs, KJs, QTs. Always raise 9.2bb: AA. Mixed: 99-KK, 55-77, AQs+, ATs, A7s, A2s-A5s, KQs, K6s-KTs, QJs, Q8s-Q9s, J8s+, T6s+, 97s+, 87s, 75s, 65s, 54s, A7o+, QTo+, JTo.

Always fold
52s, KJo, K8o, Q9o, T8o, 54o
Always call
88, 44, AJs, KJs, QTs
Always raise 9.2bb
AA
Always all-in 59.84bb
No hand plays this every time
Mixed
99-KK, 55-77, AQs+, ATs, A7s, A2s-A5s, KQs, K6s-KTs, QJs, Q8s-Q9s, J8s+, T6s+, 97s+, 87s, 75s, 65s, 54s, A7o+, QTo+, JTo
Settings: 5-max · 60bb · 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, 60bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.3). 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.