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

BB vs SB all-in

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 40bb · SB goes all-in · Big blind 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

PlayersBlinds & rakeStacks

Stacks (bb), if they differSBBB

Pot 41bbYour cards?

1bb

40bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 75.5%Call 24.5%

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

What is the GTO play for the big blind (BB) when SB goes all-in in Heads-up · SB 0.5bb · no rake · chip EV at 40bb?

SB goes all-in in Heads-up · SB 0.5bb · no rake · chip EV, 40bb: the big blind (BB) folds 75.5% and calls 24.5%. Always call: 66+, 44, AQs+, ATs, KJs+, ATo+, KJo+. Mixed: 55, 22-33, AJs, A2s-A9s, K8s-KTs, K4s-K6s, K2s, QTs+, Q3s-Q7s, J6s+, J3s, T8s+, T2s-T6s, 97s+, 94s, 87s, 75s, 62s, 53s+, 43s, A6o-A9o, A4o, K7o-KTo, K5o, Q8o-QTo, Q6o, JTo, J4o, T6o.

Always fold: K7s, K3s, Q8s-Q9s, Q2s, J4s-J5s, J2s, T7s, 95s-96s, 92s-93s, 82s-86s, 76s, 72s-74s, 63s+, 52s, 42s, 32s, A5o, A2o-A3o, K6o, K2o-K4o, QJo, Q7o, Q2o-Q5o, J5o-J9o, J2o-J3o, T7o+, T2o-T5o, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call: 66+, 44, AQs+, ATs, KJs+, ATo+, KJo+
Mixed: 55, 22-33, AJs, A2s-A9s, K8s-KTs, K4s-K6s, K2s, QTs+, Q3s-Q7s, J6s+, J3s, T8s+, T2s-T6s, 97s+, 94s, 87s, 75s, 62s, 53s+, 43s, A6o-A9o, A4o, K7o-KTo, K5o, Q8o-QTo, Q6o, JTo, J4o, T6o

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.