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

BB vs BTN 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 · BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 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 25.89bbYour cards?
7.5bb
17.25bb
0.5bb

Tap your two cards.

Big blind's range

586 of 1,326 combos get here
Fold 64.9%Call 25.7%Raise 37.95bb 6.5%All-in 249.84bb 2.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 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 64.9%, calls 25.7%, raises 37.95bb 6.5% and goes all-in 249.84bb 2.9%. Always call: 22-77, ATs-AJs, A8s, A4s, QJs, T9s, 87s, 54s. Always raise 37.95bb: AA. Mixed: 88-KK, AQs+, A9s, A5s-A7s, A2s-A3s, KTs+, K6s-K8s, QTs, J8s+, T7s-T8s, 97s+, 86s, 75s+, 65s, AQo+.

Always fold
K9s, K2s-K5s, Q3s-Q9s, J4s-J7s, T5s-T6s, 94s-96s, 84s-85s, 74s, 53s, 43s, ATo-AJo, A4o-A7o, KQo, KTo, K7o, QTo+, J9o+, T8o, 98o
Always call
22-77, ATs-AJs, A8s, A4s, QJs, T9s, 87s, 54s
Always raise 37.95bb
AA
Always all-in 249.84bb
No hand plays this every time
Mixed
88-KK, AQs+, A9s, A5s-A7s, A2s-A3s, KTs+, K6s-K8s, QTs, J8s+, T7s-T8s, 97s+, 86s, 75s+, 65s, AQo+
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.