PokerSolver
PokerSolver/5-max · 250bb · 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) · 250bb · 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 · 250bb · 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

998 of 1,326 combos get here
Fold 63.1%Call 28.1%Raise 37.95bb 8.3%All-in 249.84bb 0.4%
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 250bb?

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, 250bb: the big blind (BB) folds 63.1%, calls 28.1%, raises 37.95bb 8.3% and goes all-in 249.84bb 0.4%. Always call: 22-QQ, AQs, A3s, KJs, K6s-K7s, K2s, QJs, JTs, J8s, T8s+, 85s-86s, 64s+. Always raise 37.95bb: AA. Mixed: KK, AKs, A4s-AJs, A2s, KQs, K8s-KTs, K3s-K5s, Q8s-QTs, Q3s-Q6s, J9s, J7s, T6s-T7s, 95s+, 93s, 87s, 74s+, 63s, 53s+, 43s, ATo+, KTo+, QTo+, JTo.

Always fold
Q2s, J2s-J6s, T2s-T5s, 94s, 92s, 82s-84s, 72s-73s, 42s, 32s, A2o-A6o, K9o, K2o-K7o, Q3o-Q9o, J7o-J9o, J3o-J5o, T5o+, 96o+, 86o, 75o+, 64o+, 53o
Always call
22-QQ, AQs, A3s, KJs, K6s-K7s, K2s, QJs, JTs, J8s, T8s+, 85s-86s, 64s+
Always raise 37.95bb
AA
Always all-in 249.84bb
No hand plays this every time
Mixed
KK, AKs, A4s-AJs, A2s, KQs, K8s-KTs, K3s-K5s, Q8s-QTs, Q3s-Q6s, J9s, J7s, T6s-T7s, 95s+, 93s, 87s, 74s+, 63s, 53s+, 43s, ATo+, KTo+, QTo+, JTo
Settings: 5-max · 250bb · 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, 250bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.98). 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.