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 opens 2.5bb, 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 77.5bbYour cards?

2.5bb

75bb

Tap your two cards.

Small blind / button's range

1,254 of 1,326 combos get here

Fold 91.3%Call 8.7%

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

SB opens 2.5bb, BB goes all-in in Heads-up · SB 0.5bb · no rake · chip EV, 75bb: the small blind / button (SB) folds 91.3% and calls 8.7%. Always call: 88+, 66, AQs+, ATs, AQo+. Mixed: 77, 55, AJs, KJs+, QTs+, JTs, AJo.

Always fold: 22-44, A2s-A9s, K2s-KTs, Q2s-Q9s, J2s-J9s, T2s+, 94s+, 92s, 82s+, 72s+, 62s+, 52s+, 42s+, 32s, A2o-ATo, K2o+, Q2o+, J2o+, T8o+, T3o-T6o, 93o+, 84o+, 74o+, 62o+, 52o+, 43o
Always call: 88+, 66, AQs+, ATs, AQo+
Mixed: 77, 55, AJs, KJs+, QTs+, JTs, 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.