PokerSolver
PokerSolver/5-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/SB vs BTN 4-bet 11.5bb

SB vs BTN 4-bet 11.5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · BTN opens 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb · 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 · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 18.3bbYour cards?
5bb
1bb
11.5bb

Tap your two cards.

Small blind's range

294 of 1,326 combos get here
Fold 30.9%Call 51.8%Raise 25.3bb 13.5%All-in 199.84bb 3.8%
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 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 200bb?

BTN opens 2.5bb, SB 3-bets to 5bb, BTN 4-bets to 11.5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 200bb: the small blind (SB) folds 30.9%, calls 51.8%, raises 25.3bb 13.5% and goes all-in 199.84bb 3.8%. Always call: 88, 22-66, A4s-A5s, KJs, K7s, 65s. Always raise 25.3bb: KK+. Mixed: 99-QQ, 77, A7s+, KQs, K9s-KTs, K6s, Q9s+, J9s+, T9s, 98s, AQo+, KQo.

Always fold
T8s, AJo, QJo, JTo
Always call
88, 22-66, A4s-A5s, KJs, K7s, 65s
Always raise 25.3bb
KK+
Always all-in 199.84bb
No hand plays this every time
Mixed
99-QQ, 77, A7s+, KQs, K9s-KTs, K6s, Q9s+, J9s+, T9s, 98s, AQo+, KQo
Settings: 5-max · 200bb · 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, 200bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.99). 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.