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

BB vs SB 3-bet 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 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 9.14bbYour cards?

1bb

2.5bb

5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 89.9%Call 3%Raise 11.5bb 5%All-in 99.84bb 2.1%

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 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 5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 100bb: the big blind (BB) folds 89.9%, calls 3%, raises 11.5bb 5% and goes all-in 99.84bb 2.1%. Always raise 11.5bb: KK. Mixed: AA, 44-QQ, ATs+, A3s-A8s, KTs+, K7s, K3s-K4s, QJs, Q9s, J9s+, 97s, 76s, 65s, 54s, 42s, AJo+, KTo-KJo.

Always fold: 22-33, A9s, A2s, K8s-K9s, K5s-K6s, K2s, QTs, Q2s-Q8s, J2s-J8s, T2s+, 98s, 92s-96s, 82s+, 72s-75s, 62s-64s, 52s-53s, 43s, 32s, A2o-ATo, KQo, K2o-K9o, Q2o+, J2o+, T2o+, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: No hand plays this every time
Always raise 11.5bb: KK
Always all-in 99.84bb: No hand plays this every time
Mixed: AA, 44-QQ, ATs+, A3s-A8s, KTs+, K7s, K3s-K4s, QJs, Q9s, J9s+, 97s, 76s, 65s, 54s, 42s, AJo+, KTo-KJo

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.