PokerSolver/Heads-up · 40bb · SB 0.5bb · no rake · chip EV/BB vs SB open 3bb

BB vs SB open 3bb

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 40bb · SB opens 3bb · 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 4bbYour cards?

1bb

3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 42.5%Call 35.9%Raise 7.5bb 12.4%All-in 40bb 9.2%

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

What is the GTO play for the big blind (BB) when SB opens 3bb in Heads-up · SB 0.5bb · no rake · chip EV at 40bb?

SB opens 3bb in Heads-up · SB 0.5bb · no rake · chip EV, 40bb: the big blind (BB) folds 42.5%, calls 35.9%, raises 7.5bb 12.4% and goes all-in 40bb 9.2%. Always call: A7s, A4s, A2s, K9s, K2s-K7s, QTs, Q8s, Q6s, Q2s-Q4s, J9s, J3s-J6s, T8s, T5s-T6s, 97s, 84s, 62s+, 53s+, A3o, QTo, JTo, T8o+, 98o. Always raise 7.5bb: JJ+, 99, AJs. Always all-in 40bb: 77, 55, 22, AJo. Mixed: TT, 88, 66, 33-44, AQs+, A8s-ATs, A5s-A6s, A3s, KTs+, K8s, QJs, Q9s, Q7s, Q5s, JTs, J7s-J8s, J2s, T9s, T7s, T4s, T2s, 98s, 92s-96s, 85s+, 82s-83s, 73s+, 52s, 42s+, 32s, AQo+, A4o-ATo, A2o, K4o+, QJo, Q6o-Q9o, J7o-J9o, T7o, 97o, 86o+, 76o, 65o.

Always fold: T3s, 72s, K2o-K3o, Q2o-Q5o, J2o-J6o, T2o-T6o, 92o-96o, 82o-85o, 72o-75o, 62o-64o, 52o+, 42o+, 32o
Always call: A7s, A4s, A2s, K9s, K2s-K7s, QTs, Q8s, Q6s, Q2s-Q4s, J9s, J3s-J6s, T8s, T5s-T6s, 97s, 84s, 62s+, 53s+, A3o, QTo, JTo, T8o+, 98o
Always raise 7.5bb: JJ+, 99, AJs
Always all-in 40bb: 77, 55, 22, AJo
Mixed: TT, 88, 66, 33-44, AQs+, A8s-ATs, A5s-A6s, A3s, KTs+, K8s, QJs, Q9s, Q7s, Q5s, JTs, J7s-J8s, J2s, T9s, T7s, T4s, T2s, 98s, 92s-96s, 85s+, 82s-83s, 73s+, 52s, 42s+, 32s, AQo+, A4o-ATo, A2o, K4o+, QJo, Q6o-Q9o, J7o-J9o, T7o, 97o, 86o+, 76o, 65o

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.