PokerSolver
PokerSolver/4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb/BB vs BTN 3-bet 5bb

BB vs BTN 3-bet 5bb

4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb (blinds 0.5/1bb, ante 0.16bb) · 250bb · BTN limps, BB isolates to 2.5bb, BTN 3-bets to 5bb · Big blind to act

4-max · 250bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bbChange game
Stacks (bb), if they differ
Pot 8.64bbYour cards?
2.5bb
5bb
0.5bb

Tap your two cards.

Big blind's range

646 of 1,326 combos get here
Fold 45.7%Call 43.4%Raise 11.5bb 7.7%All-in 249.84bb 3.3%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN limps, BB isolates to 2.5bb, BTN 3-bets to 5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb at 250bb?

BTN limps, BB isolates to 2.5bb, BTN 3-bets to 5bb in 4-max · SB 0.5bb · ante 0.16bb · 5% rake, cap 4.8bb, 250bb: the big blind (BB) folds 45.7%, calls 43.4%, raises 11.5bb 7.7% and goes all-in 249.84bb 3.3%. Always call: TT, 88, 33-55, AQs, A9s-ATs, K8s, QJs, J7s, T8s, 76s, AJo-AQo, KJo. Mixed: QQ+, 99, 66-77, 22, AKs, AJs, A3s-A8s, K9s+, K7s, K5s, K2s, Q8s-QTs, Q4s-Q6s, J8s+, J5s, J2s, T9s, T6s-T7s, T4s, T2s, 95s-97s, 87s, 85s, 82s-83s, 74s-75s, 65s, 53s+, 42s, AKo, A8o, KQo, KTo, QJo, JTo, T8o+, 97o.

Always fold
Q3s, 92s-93s, 86s, 84s, 43s, 32s, K9o, J5o, T4o, 92o, 83o, 65o, 53o
Always call
TT, 88, 33-55, AQs, A9s-ATs, K8s, QJs, J7s, T8s, 76s, AJo-AQo, KJo
Always raise 11.5bb
No hand plays this every time
Always all-in 249.84bb
No hand plays this every time
Mixed
QQ+, 99, 66-77, 22, AKs, AJs, A3s-A8s, K9s+, K7s, K5s, K2s, Q8s-QTs, Q4s-Q6s, J8s+, J5s, J2s, T9s, T6s-T7s, T4s, T2s, 95s-97s, 87s, 85s, 82s-83s, 74s-75s, 65s, 53s+, 42s, AKo, A8o, KQo, KTo, QJo, JTo, T8o+, 97o
Settings: 4-max · 250bb · 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, 250bb stacks, 5% rake capped at 4.8bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 24.91). 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.