PokerSolver
PokerSolver/6-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

6-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
6-max · 250bb · 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

1,074 of 1,326 combos get here
Fold 66.8%Call 23.7%Raise 37.95bb 9.3%All-in 249.84bb 0.3%
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 250bb?

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, 250bb: the big blind (BB) folds 66.8%, calls 23.7%, raises 37.95bb 9.3% and goes all-in 249.84bb 0.3%. Always call: 22-QQ, ATs-AJs, A4s, KQs, K7s-KTs, K4s-K5s, K2s, QTs+, T8s, 97s, 87s, 64s+, 54s. Always raise 37.95bb: AA, AKs, A9s, ATo. Mixed: KK, AQs, A5s-A8s, A2s-A3s, KJs, K6s, K3s, Q8s-Q9s, Q6s, Q3s, J7s+, J4s, T9s, T6s-T7s, T4s, 98s, 96s, 94s, 85s-86s, 74s+, 53s, 43s, AJo+, KTo+, JTo.

Always fold
Q4s, Q2s, J5s-J6s, J2s-J3s, T5s, T2s, 95s, 92s-93s, 82s-84s, 72s, 62s-63s, 42s, 32s, A9o, A2o-A7o, K9o, K2o-K7o, Q9o-QTo, Q2o-Q7o, J7o-J9o, J2o-J5o, T4o-T8o, 95o+, 85o-86o, 75o+, 53o+, 43o
Always call
22-QQ, ATs-AJs, A4s, KQs, K7s-KTs, K4s-K5s, K2s, QTs+, T8s, 97s, 87s, 64s+, 54s
Always raise 37.95bb
AA, AKs, A9s, ATo
Always all-in 249.84bb
No hand plays this every time
Mixed
KK, AQs, A5s-A8s, A2s-A3s, KJs, K6s, K3s, Q8s-Q9s, Q6s, Q3s, J7s+, J4s, T9s, T6s-T7s, T4s, 98s, 96s, 94s, 85s-86s, 74s+, 53s, 43s, AJo+, KTo+, JTo
Settings: 6-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 29.27). 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.