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

BB vs BTN 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 · CO opens 2.5bb, BTN 3-bets to 7.5bb · 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 · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 12.14bbYour cards?

1bb

2.5bb

7.5bb

0.5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 93.3%Call 0.2%Raise 17.25bb 4.7%All-in 99.84bb 1.7%

Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when CO opens 2.5bb, BTN 3-bets to 7.5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 100bb?

CO opens 2.5bb, BTN 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 93.3%, calls 0.2%, raises 17.25bb 4.7% and goes all-in 99.84bb 1.7%. Always raise 17.25bb: KK+, KJs, AQo. Always all-in 99.84bb: AKo. Mixed: 88-QQ, ATs+, A4s-A7s, KQs, KTs.

Always fold: 22-77, A8s-A9s, A2s-A3s, K2s-K9s, Q2s+, J2s+, T2s+, 92s+, 82s+, 72s+, 62s+, 52s+, 42s+, 32s, A2o-AJo, K2o+, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: No hand plays this every time
Always raise 17.25bb: KK+, KJs, AQo
Always all-in 99.84bb: AKo
Mixed: 88-QQ, ATs+, A4s-A7s, KQs, KTs

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.

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.