PokerSolver
PokerSolver/5-max · 100bb · 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) · 100bb · 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 · 100bb · 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

1,160 of 1,326 combos get here
Fold 74%Call 20%All-in 99.84bb 6%
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 100bb?

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, 100bb: the big blind (BB) folds 74%, calls 20% and goes all-in 99.84bb 6%. Always call: AA, 88-TT, 44-55, AQs, K9s-KJs, K5s, Q9s-QTs, JTs, T7s+, 97s+, 86s+, 76s, 65s, 54s, AJo, KJo+. Always all-in 99.84bb: QQ-KK, AKs, A3s-A4s, AKo. Mixed: JJ, 66-77, 33, A5s-AJs, A2s, KQs, K7s-K8s, K2s-K4s, QJs, Q2s, J8s-J9s, 63s-64s, 52s, 43s, AQo, ATo, KTo, QJo, JTo.

Always fold
Q3s, J7s, J3s-J4s, T4s-T6s, T2s, 92s-96s, 84s-85s, 82s, 72s-74s, 62s, 42s, 32s, A6o-A9o, A2o-A4o, K2o-K9o, Q8o-Q9o, Q2o-Q6o, J2o-J9o, T3o+, 94o-97o, 84o+, 74o+, 64o, 53o+, 43o
Always call
AA, 88-TT, 44-55, AQs, K9s-KJs, K5s, Q9s-QTs, JTs, T7s+, 97s+, 86s+, 76s, 65s, 54s, AJo, KJo+
Always all-in 99.84bb
QQ-KK, AKs, A3s-A4s, AKo
Mixed
JJ, 66-77, 33, A5s-AJs, A2s, KQs, K7s-K8s, K2s-K4s, QJs, Q2s, J8s-J9s, 63s-64s, 52s, 43s, AQo, ATo, KTo, QJo, JTo
Settings: 5-max · 100bb · 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, 100bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 23.9). 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.