PokerSolver
PokerSolver/Heads-up · 40bb · SB 0.5bb · no rake · chip EV/SB vs BB all-in

SB vs BB all-in

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 40bb · SB limps, BB isolates to 3bb, SB 3-bets to 7.5bb, BB goes all-in · Small blind / button to act

Fits exactlyGGPoker Spin & Gold x50, x100, Maxpartypoker SPINS Overdrive 10-24.99x, 25-119.99x, 120-239.99x, 240x+WPT Global Global Spins x5, x10, x25, x120, x240, x6,000
Close1 games
  • ACR Poker SPINZ x2, x3, x4, x5, x10, x25, x50, x100, x12,000its blinds are not published
Cash
Heads-up · 40bb · SB 0.5bb · no rake · chip EVChange game
Stacks (bb), if they differ
Pot 47.5bbYour cards?
7.5bb
40bb

Tap your two cards.

Small blind / button's range

850 of 1,326 combos get here
Fold 81.1%Call 18.9%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the small blind / button (SB) when SB limps, BB isolates to 3bb, SB 3-bets to 7.5bb, BB goes all-in in Heads-up · SB 0.5bb · no rake · chip EV at 40bb?

SB limps, BB isolates to 3bb, SB 3-bets to 7.5bb, BB goes all-in in Heads-up · SB 0.5bb · no rake · chip EV, 40bb: the small blind / button (SB) folds 81.1% and calls 18.9%. Always call: 77+, ATs+, KJs, AJo+. Mixed: 33-55, A7s-A8s, A9o-ATo, KQo.

Always fold
K2s-K3s, Q7s, Q3s-Q4s, J6s-J7s, J4s, J2s, T4s-T8s, T2s, 95s, 92s, 84s, 73s-75s, 65s, 63s, 43s, 32s, A6o, A2o-A4o, K8o, K2o-K6o, Q4o-Q9o, J7o+, J2o-J4o, T4o+, 96o-97o, 86o, 75o, 65o, 54o, 52o
Always call
77+, ATs+, KJs, AJo+
Mixed
33-55, A7s-A8s, A9o-ATo, KQo
Settings: Heads-up · 40bb · SB 0.5bb · no rake · chip EV (small blind 0.5bb, big blind 1bb, 40bb stacks, no rake; chip EV: every chip is worth the same, as it is when only the winner is paid and heads-up). Solver: HoldemResources Calculator (HRC) (HRC CI 32.16). Bet sizes are the solved ones; a size that is not here plays like the nearest one.

Sources for the games it fits: ggpoker.com/poker-games/spin-gold (prize table in its script js/funds29.8816e65c.js; fetched 2026-10-31); chips and blinds from worldpokerdeals.com/blog/spin-gold-the-ultimate-guide-on-ggpoker-network (updated 2026-05-11; its 26-level blind table lists no ante) and somuchpoker.com/news/best-spin-and-go-poker-sites-2026 (updated 2026-10-16), fetched 2026-10-31; partypoker.com/en/poker/offers/dynamic-structure (stacks, prize shares and the 20-level blind table, which lists no ante), fetched 2026-10-31; wptglobal.com/how-to-play/global-spins (stacks and prize shares; fetched 2026-10-31); blinds from worldpokerdeals.com/blog/global-spins-wpt-global (2023-11-23; its blind table lists no ante) and somuchpoker.com/news/best-spin-and-go-poker-sites-2026 (2026-10-16); worldpokerdeals.com/blog/winning-poker-network-new-1-000-000-spin-go (2025-12-05; stacks only), fetched 2026-10-31.