PokerSolver
PokerSolver/Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB 4-bet 13.8bb

BB vs SB 4-bet 13.8bb

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB opens 3bb, BB 3-bets to 6bb, SB 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
Tournament
Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game
Stacks (bb), if they differ
Pot 20.12bbYour cards?
6bb
13.8bb

Tap your two cards.

Big blind's range

518 of 1,326 combos get here
Fold 39.1%Call 53%All-in 99.84bb 8%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when SB opens 3bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB opens 3bb, BB 3-bets to 6bb, SB 4-bets to 13.8bb in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the big blind (BB) folds 39.1%, calls 53% and goes all-in 99.84bb 8%. Always call: JJ, 22-99, AJs-AQs, A7s-A8s, KQs, K6s-K8s, QJs, Q8s-Q9s, J9s+, T8s+, 87s, 76s, 64s+, 54s, ATo-AQo, KQo. Always all-in 99.84bb: QQ-KK, AKs, AKo. Mixed: AA, TT, A9s, A2s-A5s, T7s, 97s+, 85s-86s, 75s, KTo-KJo, QJo.

Always fold
J7s, T6s, 95s, A8o-A9o, Q8o-Q9o, T9o, 98o, 76o
Always call
JJ, 22-99, AJs-AQs, A7s-A8s, KQs, K6s-K8s, QJs, Q8s-Q9s, J9s+, T8s+, 87s, 76s, 64s+, 54s, ATo-AQo, KQo
Always all-in 99.84bb
QQ-KK, AKs, AKo
Mixed
AA, TT, A9s, A2s-A5s, T7s, 97s+, 85s-86s, 75s, KTo-KJo, QJo
Settings: Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.