PokerSolver
PokerSolver/6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 4-bet 17.25bb

BB vs SB 4-bet 17.25bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb · 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
6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 25.71bbYour cards?
7.5bb
17.25bb

Tap your two cards.

Big blind's range

1,014 of 1,326 combos get here
Fold 71.9%Call 19.8%All-in 79.84bb 8.3%
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 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 71.9%, calls 19.8% and goes all-in 79.84bb 8.3%. Always call: AA, 88, 55-66, AJs, A6s, KQs, K6s, K4s, J9s+, T8s+, 97s+, 86s+, 65s, AJo, KQo. Always all-in 79.84bb: QQ-KK, 44, AKs, A3s-A4s, AKo. Mixed: 99-JJ, 77, 33, AQs, A9s-ATs, A5s, A2s, KTs-KJs, Q9s+, J7s, T6s-T7s, 96s, 76s, 74s, 63s, 54s, AQo, KTo, JTo.

Always fold
J3s, T2s-T5s, 92s-95s, 82s-84s, 72s-73s, 62s, 32s, A8o-ATo, A6o, A2o-A4o, K9o, K2o-K6o, Q2o-Q8o, J2o-J9o, T2o-T8o, 95o+, 85o+, 53o+, 32o
Always call
AA, 88, 55-66, AJs, A6s, KQs, K6s, K4s, J9s+, T8s+, 97s+, 86s+, 65s, AJo, KQo
Always all-in 79.84bb
QQ-KK, 44, AKs, A3s-A4s, AKo
Mixed
99-JJ, 77, 33, AQs, A9s-ATs, A5s, A2s, KTs-KJs, Q9s+, J7s, T6s-T7s, 96s, 76s, 74s, 63s, 54s, AQo, KTo, JTo
Settings: 6-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.92). 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.