PokerSolver
PokerSolver/4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB 3-bet 7.5bb

BB vs SB 3-bet 7.5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · BTN opens 2.5bb, SB 3-bets to 7.5bb · Big blind to act

4-max · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 11.64bbYour cards?
1bb
2.5bb
7.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 87.8%Call 5.4%Raise 17.25bb 6.2%All-in 99.84bb 0.5%
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, SB 3-bets to 7.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

BTN opens 2.5bb, SB 3-bets to 7.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 87.8%, calls 5.4%, raises 17.25bb 6.2% and goes all-in 99.84bb 0.5%. Always call: 88, ATs-AQs, QTs, JTs. Always raise 17.25bb: QQ+, AKs. Mixed: 99-JJ, 55-77, 22, A4s-A9s, K9s+, K4s, QJs, Q9s, T8s+, 76s, 65s, 54s, AJo+, KQo.

Always fold
33-44, A2s-A3s, K5s-K8s, K2s-K3s, Q2s-Q8s, J2s-J9s, T2s-T7s, 92s+, 82s+, 72s-75s, 62s-64s, 52s-53s, 42s+, 32s, A2o-ATo, K2o-KJo, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
88, ATs-AQs, QTs, JTs
Always raise 17.25bb
QQ+, AKs
Always all-in 99.84bb
No hand plays this every time
Mixed
99-JJ, 55-77, 22, A4s-A9s, K9s+, K4s, QJs, Q9s, T8s+, 76s, 65s, 54s, AJo+, KQo
Settings: 4-max · 100bb · 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, 100bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.66). 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.

Fits exactly: no game we have checked.

Close: CoinPoker cash with antes NL50 (rake before the flop in 3-bet pots there, none here).

Rake sources: 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.