PokerSolver
PokerSolver/5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs CO 4-bet 13.8bb

SB vs CO 4-bet 13.8bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · 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
5-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 21.6bbYour cards?
6bb
1bb
13.8bb

Tap your two cards.

Small blind's range

408 of 1,326 combos get here
Fold 66.5%Call 20.6%All-in 99.84bb 13%
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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 100bb?

CO opens 2bb, SB 3-bets to 6bb, CO 4-bets to 13.8bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 100bb: the small blind (SB) folds 66.5%, calls 20.6% and goes all-in 99.84bb 13%. Always call: 77, 55, AJs. Always all-in 99.84bb: KK, AKs, AKo. Mixed: AA, 88-QQ, 66, 44, AQs, A7s-ATs, A2s-A5s, KTs+, Q9s+, JTs, T9s, T7s, 98s, 76s, 65s, 53s+, AQo.

Always fold
K7s-K9s, K3s-K5s, J7s-J9s, J5s, T8s, 97s, 86s+, A9o-AJo, KTo+, QJo, JTo
Always call
77, 55, AJs
Always all-in 99.84bb
KK, AKs, AKo
Mixed
AA, 88-QQ, 66, 44, AQs, A7s-ATs, A2s-A5s, KTs+, Q9s+, JTs, T9s, T7s, 98s, 76s, 65s, 53s+, AQo
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.