PokerSolver/Heads-up · 75bb · 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) · 75bb · SB limps, BB isolates to 2.5bb, SB 3-bets to 6.25bb, BB goes all-in · Small blind / button to act

Fits exactlyGGPoker Spin & Gold Maxpartypoker SPINS Overdrive 240x+WPT Global Global Spins 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 · 75bb · SB 0.5bb · no rake · chip EVChange game

PlayersBlinds & rakeStacks

Stacks (bb), if they differSBBB

Pot 81.25bbYour cards?

6.25bb

75bb

Tap your two cards.

Small blind / button's range

1,050 of 1,326 combos get here

Fold 89.9%Call 10.1%

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 2.5bb, SB 3-bets to 6.25bb, BB goes all-in in Heads-up · SB 0.5bb · no rake · chip EV at 75bb?

SB limps, BB isolates to 2.5bb, SB 3-bets to 6.25bb, BB goes all-in in Heads-up · SB 0.5bb · no rake · chip EV, 75bb: the small blind / button (SB) folds 89.9% and calls 10.1%. Always call: 77+, AQs+, AQo+. Mixed: 66, ATs, A7s-A8s, KJs, QJs, AJo.

Always fold: A9s, A6s, A2s-A3s, K2s-K8s, Q6s-Q7s, Q2s-Q4s, J2s+, T9s, T2s-T7s, 95s+, 93s, 85s, 82s-83s, 72s+, 64s+, 62s, 53s, 42s+, A2o-ATo, K9o+, K4o-K7o, K2o, QJo, Q7o-Q9o, Q4o, J7o+, J3o-J5o, T9o, T6o, T4o, 97o+, 94o-95o, 86o+, 84o, 75o+, 63o
Always call: 77+, AQs+, AQo+
Mixed: 66, ATs, A7s-A8s, KJs, QJs, AJo

Settings: Heads-up · 75bb · SB 0.5bb · no rake · chip EV (small blind 0.5bb, big blind 1bb, 75bb 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 35.88). 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.