PokerSolver
PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/SB vs CO 4-bet 13.8bb

SB vs CO 4-bet 13.8bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO opens 2bb, SB 3-bets to 6bb, CO 4-bets to 13.8bb · Small 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
Tournament
4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 21.44bbYour cards?
6bb
1bb
13.8bb

Tap your two cards.

Small blind's range

376 of 1,326 combos get here
Fold 58.8%Call 33%All-in 149.84bb 8.2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind (SB) when CO opens 2bb, SB 3-bets to 6bb, CO 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

CO opens 2bb, SB 3-bets to 6bb, CO 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the small blind (SB) folds 58.8%, calls 33% and goes all-in 149.84bb 8.2%. Always call: TT-QQ, 88, 33-55, AQs. Always all-in 149.84bb: AA. Mixed: KK, 99, 66-77, AKs, A3s-AJs, KTs+, K8s, QTs+, Q8s, J9s+, T8s+, 86s+, 75s+, 64s+, 53s, AQo+.

Always fold
K9s, K3s-K7s, Q9s, Q7s, 98s, 54s, AJo, KTo+, QJo, JTo
Always call
TT-QQ, 88, 33-55, AQs
Always all-in 149.84bb
AA
Mixed
KK, 99, 66-77, AKs, A3s-AJs, KTs+, K8s, QTs+, Q8s, J9s+, T8s+, 86s+, 75s+, 64s+, 53s, AQo+
Settings: 4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.