PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 4-bet 17.25bb

BB vs SB 4-bet 17.25bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (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
4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 25.39bbYour cards?
7.5bb
17.25bb

Tap your two cards.

Big blind's range

1,058 of 1,326 combos get here
Fold 63%Call 29.6%Raise 37.95bb 7.3%All-in 249.84bb 0.2%
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 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

SB opens 2.5bb, BB 3-bets to 7.5bb, SB 4-bets to 17.25bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 63%, calls 29.6%, raises 37.95bb 7.3% and goes all-in 249.84bb 0.2%. Always call: 22-TT, AJs-AQs, A6s-A7s, A3s, K2s-KTs, QJs, Q7s-Q9s, J9s+, T7s, 97s, 86s, 75s+, 64s, 53s, KJo. Always raise 37.95bb: KK+, AKs. Mixed: JJ-QQ, A8s-ATs, A4s-A5s, A2s, KJs+, QTs, Q5s-Q6s, Q3s, J7s-J8s, J4s-J5s, J2s, T8s+, T6s, T3s, 98s, 95s-96s, 87s, 84s-85s, 74s, 65s, 54s, 42s+, 32s, ATo+, KQo, KTo, QTo+, JTo.

Always fold
Q2s, J6s, J3s, T4s-T5s, 92s-94s, 82s-83s, 62s, 52s, A2o-A7o, K2o-K9o, Q2o-Q9o, J4o-J9o, T5o-T8o, 98o, 96o, 75o, 65o, 53o+
Always call
22-TT, AJs-AQs, A6s-A7s, A3s, K2s-KTs, QJs, Q7s-Q9s, J9s+, T7s, 97s, 86s, 75s+, 64s, 53s, KJo
Always raise 37.95bb
KK+, AKs
Always all-in 249.84bb
No hand plays this every time
Mixed
JJ-QQ, A8s-ATs, A4s-A5s, A2s, KJs+, QTs, Q5s-Q6s, Q3s, J7s-J8s, J4s-J5s, J2s, T8s+, T6s, T3s, 98s, 95s-96s, 87s, 84s-85s, 74s, 65s, 54s, 42s+, 32s, ATo+, KQo, KTo, QTo+, JTo
Settings: 4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.