PokerSolver
PokerSolver/5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs HJ 4-bet 20.7bb

BB vs HJ 4-bet 20.7bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · HJ opens 3bb, BB 3-bets to 9bb, HJ 4-bets to 20.7bb · Big blind to act

5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 31bbYour cards?
9bb
20.7bb
0.5bb

Tap your two cards.

Big blind's range

340 of 1,326 combos get here
Fold 54.6%Call 39.1%All-in 149.84bb 6.3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when HJ opens 3bb, BB 3-bets to 9bb, HJ 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

HJ opens 3bb, BB 3-bets to 9bb, HJ 4-bets to 20.7bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the big blind (BB) folds 54.6%, calls 39.1% and goes all-in 149.84bb 6.3%. Always call: 44-KK, ATs+, 76s, 64s+, 54s. Mixed: AA, A8s-A9s, A2s-A6s, KQs, J9s+, T8s+, 97s+, 87s, AKo.

Always fold
A7s, K2s-KJs, Q7s+, Q5s, J8s, 96s, A9o, KTo-KJo, JTo
Always call
44-KK, ATs+, 76s, 64s+, 54s
Always all-in 149.84bb
No hand plays this every time
Mixed
AA, A8s-A9s, A2s-A6s, KQs, J9s+, T8s+, 97s+, 87s, AKo
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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.