PokerSolver
PokerSolver/4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN 4-bet 11.5bb

BB vs BTN 4-bet 11.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 200bb · BTN opens 2.5bb, BB 3-bets to 5bb, BTN 4-bets to 11.5bb · Big 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
4-max · 200bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 17.64bbYour cards?
5bb
11.5bb
0.5bb

Tap your two cards.

Big blind's range

314 of 1,326 combos get here
Fold 28.4%Call 56.8%Raise 25.3bb 13.7%All-in 199.84bb 1.1%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2.5bb, BB 3-bets to 5bb, BTN 4-bets to 11.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 200bb?

BTN opens 2.5bb, BB 3-bets to 5bb, BTN 4-bets to 11.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 200bb: the big blind (BB) folds 28.4%, calls 56.8%, raises 25.3bb 13.7% and goes all-in 199.84bb 1.1%. Always call: JJ, 44-88, 22, A9s-AJs, A4s-A5s, KTs+, QTs+, JTs, 54s. Always raise 25.3bb: KK+. Mixed: QQ, 99-TT, AQs+, A7s-A8s, A2s, K8s-K9s, K6s, Q9s, J8s-J9s, T8s+, 98s, 87s, 76s, 65s, AQo+, KQo.

Always fold
Q7s, J7s, J4s, 96s, QJo, JTo
Always call
JJ, 44-88, 22, A9s-AJs, A4s-A5s, KTs+, QTs+, JTs, 54s
Always raise 25.3bb
KK+
Always all-in 199.84bb
No hand plays this every time
Mixed
QQ, 99-TT, AQs+, A7s-A8s, A2s, K8s-K9s, K6s, Q9s, J8s-J9s, T8s+, 98s, 87s, 76s, 65s, AQo+, KQo
Settings: 4-max · 200bb · 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, 200bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.95). 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.