PokerSolver
PokerSolver/6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs BTN 4-bet 17.25bb

BB vs BTN 4-bet 17.25bb

6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 80bb · 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
6-max · 80bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 26.21bbYour cards?
7.5bb
17.25bb
0.5bb

Tap your two cards.

Big blind's range

656 of 1,326 combos get here
Fold 75.6%Call 9.5%All-in 79.84bb 14.9%
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 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 80bb?

BTN opens 2.5bb, BB 3-bets to 7.5bb, BTN 4-bets to 17.25bb in 6-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 80bb: the big blind (BB) folds 75.6%, calls 9.5% and goes all-in 79.84bb 14.9%. Always call: 55, A9s-AJs, KTs, QTs. Always all-in 79.84bb: JJ-KK, 77, AKs, A7s, A4s-A5s, AQo+. Mixed: AA, 88-TT, 66, AQs, A6s, A2s-A3s, KJs+, K9s, QJs, J9s+, T9s, 87s, 76s, 65s, 54s.

Always fold
K2s-K8s, Q5s-Q9s, J3s-J8s, T4s-T8s, 94s+, 92s, 85s-86s, 73s-75s, 63s-64s, 52s-53s, 42s+, ATo-AJo, A4o-A6o, KQo, KTo, K5o-K6o, Q8o+, J8o+, T7o+, 97o+, 76o, 65o, 54o
Always call
55, A9s-AJs, KTs, QTs
Always all-in 79.84bb
JJ-KK, 77, AKs, A7s, A4s-A5s, AQo+
Mixed
AA, 88-TT, 66, AQs, A6s, A2s-A3s, KJs+, K9s, QJs, J9s+, T9s, 87s, 76s, 65s, 54s
Settings: 6-max · 80bb · 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, 80bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.92). 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.