SB vs BTN 4-bet 13.8bb
4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · BTN opens 3bb, SB 3-bets to 6bb, BTN 4-bets to 13.8bb · Small blind to act
Fits exactlyno game we have checked
CloseCP1 games
- CPCoinPoker cash with antes NL50rake before the flop in 3-bet pots there, none here
4-max · 80bb · 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
256 of 1,326 combos get hereFold 34.9%Call 49.3%All-in 79.84bb 15.8%
Tap a hand, or type one above, to see its exact mix.
What is the GTO play for the small blind (SB) when BTN opens 3bb, SB 3-bets to 6bb, BTN 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 80bb?
BTN opens 3bb, SB 3-bets to 6bb, BTN 4-bets to 13.8bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 80bb: the small blind (SB) folds 34.9%, calls 49.3% and goes all-in 79.84bb 15.8%. Always call: JJ, 44-99, AJs-AQs, KJs+, QJs, 98s, AQo. Always all-in 79.84bb: AKs. Mixed: AA, QQ, TT, A9s-ATs, A2s-A6s, K9s-KTs, QTs, AJo.
- Always fold
- Q9s, J9s+, T9s, ATo, KJo, QJo
- Always call
- JJ, 44-99, AJs-AQs, KJs+, QJs, 98s, AQo
- Always all-in 79.84bb
- AKs
- Mixed
- AA, QQ, TT, A9s-ATs, A2s-A6s, K9s-KTs, QTs, AJo
Settings: 4-max · 80bb · 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, 80bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.