PokerSolver/Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb/BB vs SB all-in

BB vs SB all-in

Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (blinds 0.5/1bb, ante 0.16bb) · 100bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb, SB goes all-in · Big blind to act

Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bbChange game

PlayersBlinds & rakeEff. stack

Stacks (bb), if they differSBBB

Pot 117.41bbYour cards?

17.25bb

99.84bb

Tap your two cards.

Big blind's range

502 of 1,326 combos get here

Fold 81.7%Call 18.3%

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

What is the GTO play for the big blind (BB) when SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb at 100bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 7.5bb, BB 4-bets to 17.25bb, SB goes all-in in Heads-up · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb, 100bb: the big blind (BB) folds 81.7% and calls 18.3%. Always call: 99+, AKs, AQo+. Mixed: 55-88, ATs-AQs, KJs, QJs.

Always fold: 33, A6s-A9s, A2s-A4s, K7s-KTs, K5s, Q7s-QTs, Q4s, J9s+, J5s, T9s, T6s-T7s, T4s, 97s+, 95s, 85s-86s, 74s+, 53s, A9o-AJo, A5o, K9o+, QTo+, JTo
Always call: 99+, AKs, AQo+
Mixed: 55-88, ATs-AQs, KJs, QJs

Settings: Heads-up · 100bb · SB 0.5bb · ante 0.16bb · 5% rake, cap 2bb (small blind 0.5bb, big blind 1bb, an ante of 0.16bb from every player, 100bb stacks, 5% rake capped at 2bb; no rake when no flop is dealt). Solver: HoldemResources Calculator (HRC) (HRC CI 8.9). 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.