PokerSolver
PokerSolver/5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 4-bet 13.8bb

BB vs BTN 4-bet 13.8bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · BTN opens 3bb, BB 3-bets to 6bb, BTN 4-bets to 13.8bb · 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
5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 21.1bbYour cards?
6bb
13.8bb
0.5bb

Tap your two cards.

Big blind's range

336 of 1,326 combos get here
Fold 37.6%Call 53.6%All-in 149.84bb 8.8%
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 3bb, BB 3-bets to 6bb, BTN 4-bets to 13.8bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

BTN opens 3bb, BB 3-bets to 6bb, BTN 4-bets to 13.8bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the big blind (BB) folds 37.6%, calls 53.6% and goes all-in 149.84bb 8.8%. Always call: 99-QQ, 44-77, A7s-AQs, A5s, KQs, K8s-KTs, QTs+, J9s+, T8s+, 98s, 86s, 76s, 65s, AQo. Always all-in 149.84bb: AA, AKs, AKo. Mixed: KK, A3s-A4s, 75s.

Always fold
Q9s, Q5s, A9o, KQo, Q9o
Always call
99-QQ, 44-77, A7s-AQs, A5s, KQs, K8s-KTs, QTs+, J9s+, T8s+, 98s, 86s, 76s, 65s, AQo
Always all-in 149.84bb
AA, AKs, AKo
Mixed
KK, A3s-A4s, 75s
Settings: 5-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.89). 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.