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

SB vs CO 3-bet 5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 60bb · CO limps, SB isolates to 2.5bb, CO 3-bets to 5bb · Small blind to act

5-max · 60bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 9.3bbYour cards?
2.5bb
1bb
5bb

Tap your two cards.

Small blind's range

348 of 1,326 combos get here
Fold 44.8%Call 25.2%Raise 11.5bb 21.1%All-in 59.84bb 8.8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when CO limps, SB isolates to 2.5bb, CO 3-bets to 5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 60bb?

CO limps, SB isolates to 2.5bb, CO 3-bets to 5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 60bb: the small blind (SB) folds 44.8%, calls 25.2%, raises 11.5bb 21.1% and goes all-in 59.84bb 8.8%. Always call: 88, KJs. Always raise 11.5bb: AA, 66. Mixed: 99-KK, 77, 55, A3s+, KQs, K8s-KTs, K5s-K6s, QTs+, J8s+, T9s, T6s, 97s+, 87s, 75s+, 64s+, 53s, ATo+, KJo+.

Always fold
Q9s, Q7s, T7s-T8s, 86s, 54s, A9o, QJo, JTo
Always call
88, KJs
Always raise 11.5bb
AA, 66
Always all-in 59.84bb
No hand plays this every time
Mixed
99-KK, 77, 55, A3s+, KQs, K8s-KTs, K5s-K6s, QTs+, J8s+, T9s, T6s, 97s+, 87s, 75s+, 64s+, 53s, ATo+, KJo+
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.

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.