PokerSolver
PokerSolver/5-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

5-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
5-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 25.55bbYour cards?
7.5bb
17.25bb

Tap your two cards.

Big blind's range

1,040 of 1,326 combos get here
Fold 72.6%Call 18%All-in 79.84bb 9.3%
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 5-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 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 72.6%, calls 18% and goes all-in 79.84bb 9.3%. Always call: AA, 99, 77, AJs, KTs-KJs, JTs, T8s+, 97s+, 86s+, 76s, 65s, AJo. Always all-in 79.84bb: QQ-KK, TT, AKs, A2s-A4s, AKo. Mixed: JJ, 88, 33-66, AQs, A9s-ATs, A5s-A6s, KQs, K7s-K9s, K3s-K4s, Q9s+, Q6s-Q7s, Q2s, J9s, T6s, 95s-96s, 85s, 75s, 53s+, 43s, AQo, ATo, KQo, KTo, QTo, JTo.

Always fold
Q4s, J6s, J3s-J4s, T2s-T5s, 92s-94s, 82s-84s, 72s-73s, 62s-63s, 52s, 32s, A9o, A2o-A7o, K9o, K7o, K2o-K4o, Q2o-Q9o, J4o-J9o, J2o, T3o-T8o, 95o+, 85o-86o, 75o, 64o, 43o
Always call
AA, 99, 77, AJs, KTs-KJs, JTs, T8s+, 97s+, 86s+, 76s, 65s, AJo
Always all-in 79.84bb
QQ-KK, TT, AKs, A2s-A4s, AKo
Mixed
JJ, 88, 33-66, AQs, A9s-ATs, A5s-A6s, KQs, K7s-K9s, K3s-K4s, Q9s+, Q6s-Q7s, Q2s, J9s, T6s, 95s-96s, 85s, 75s, 53s+, 43s, AQo, ATo, KQo, KTo, QTo, JTo
Settings: 5-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 24.95). 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.