PokerSolver
PokerSolver/5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb/BB vs SB 3-bet 5bb

BB vs SB 3-bet 5bb

5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb (blinds 0.5/1bb, ante 0.16bb) · 150bb · CO opens 2.5bb, SB 3-bets to 5bb · Big blind to act

5-max · 150bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bbChange game
Stacks (bb), if they differ
Pot 9.3bbYour cards?
1bb
2.5bb
5bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 93%Call 2.7%Raise 11.5bb 3.5%All-in 149.84bb 0.8%
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, SB 3-bets to 5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb at 150bb?

CO opens 2.5bb, SB 3-bets to 5bb in 5-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 8bb, 150bb: the big blind (BB) folds 93%, calls 2.7%, raises 11.5bb 3.5% and goes all-in 149.84bb 0.8%. Mixed: 77+, 44, ATs+, A4s-A8s, A2s, KQs, KTs, K6s, Q9s+, JTs, J8s, T8s, 76s, 54s, 43s, AQo+.

Always fold
55-66, 22-33, A9s, A3s, KJs, K7s-K9s, K2s-K5s, Q2s-Q8s, J9s, J2s-J7s, T9s, T2s-T7s, 92s+, 82s+, 72s-75s, 62s+, 52s-53s, 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 11.5bb
No hand plays this every time
Always all-in 149.84bb
No hand plays this every time
Mixed
77+, 44, ATs+, A4s-A8s, A2s, KQs, KTs, K6s, Q9s+, JTs, J8s, T8s, 76s, 54s, 43s, AQo+
Settings: 5-max · 150bb · 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, 150bb stacks, 5% rake capped at 8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.89). 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.