PokerSolver/4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs SB call

BB vs SB call

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · BTN opens 3bb, SB calls · Big blind to act

4-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differCOBTNSBBB

Pot 7.64bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 63.5%Call 21.8%Raise 6/9bb 14.7%

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 3bb, SB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 150bb?

BTN opens 3bb, SB calls in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 150bb: the big blind (BB) folds 63.5%, calls 21.8% and raises 6/9bb 14.7%. Always call: 22-33, A2s, K7s, K4s, K2s, Q8s, Q6s, Q3s, J9s, 95s, 85s, 64s, A9o, KTo, QTo, 76o. Always raise 6/9bb: 88+, AJs+, A5s, KTs+, QJs, 98s, AQo+. Mixed: 44-77, A6s-ATs, A3s-A4s, K8s-K9s, K5s-K6s, K3s, Q9s-QTs, Q7s, Q4s-Q5s, Q2s, JTs, J6s-J8s, T6s+, 96s-97s, 86s+, 74s+, 65s, 63s, 53s+, 43s, ATo-AJo, A8o, KJo+, K9o, QJo, Q9o, JTo, T8o+, 87o, 65o, 54o.

Always fold: J2s-J5s, T2s-T5s, 92s-94s, 82s-84s, 72s-73s, 62s, 52s, 42s, 32s, A2o-A7o, K2o-K8o, Q2o-Q8o, J2o-J9o, T2o-T7o, 92o+, 82o-86o, 72o-75o, 62o-64o, 52o-53o, 42o+, 32o
Always call: 22-33, A2s, K7s, K4s, K2s, Q8s, Q6s, Q3s, J9s, 95s, 85s, 64s, A9o, KTo, QTo, 76o
Always raise 6/9bb: 88+, AJs+, A5s, KTs+, QJs, 98s, AQo+
Mixed: 44-77, A6s-ATs, A3s-A4s, K8s-K9s, K5s-K6s, K3s, Q9s-QTs, Q7s, Q4s-Q5s, Q2s, JTs, J6s-J8s, T6s+, 96s-97s, 86s+, 74s+, 65s, 63s, 53s+, 43s, ATo-AJo, A8o, KJo+, K9o, QJo, Q9o, JTo, T8o+, 87o, 65o, 54o

Settings: 4-max · 150bb · 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, 150bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.5). 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.