PokerSolver/Heads-up · 40bb · SB 0.5bb · no rake · chip EV/SB vs BB 3-bet 5bb

SB vs BB 3-bet 5bb

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 40bb · SB opens 2bb, BB 3-bets to 5bb · 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

PlayersBlinds & rakeStacks

Stacks (bb), if they differSBBB

Pot 7bbYour cards?

2bb

5bb

Tap your two cards.

Small blind / button's range

1,250 of 1,326 combos get here

Fold 42.2%Call 51.1%All-in 40bb 6.7%

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 2bb, BB 3-bets to 5bb in Heads-up · SB 0.5bb · no rake · chip EV at 40bb?

SB opens 2bb, BB 3-bets to 5bb in Heads-up · SB 0.5bb · no rake · chip EV, 40bb: the small blind / button (SB) folds 42.2%, calls 51.1% and goes all-in 40bb 6.7%. Always call: QQ+, 22-55, A8s-AJs, A4s-A6s, K9s+, K2s-K6s, Q2s+, J5s+, J2s, T6s-T8s, T2s, 95s+, 84s+, 74s+, 62s+, 52s+, 42s+, 32s, A9o-ATo, A3o, K9o+, Q9o+, J9o+, T9o. Always all-in 40bb: AQo+. Mixed: 66-JJ, AQs+, A7s, A2s-A3s, K7s-K8s, J3s-J4s, T9s, T3s-T4s, 92s-93s, 83s, 73s, AJo, A4o-A8o, A2o, K7o-K8o, K4o-K5o, K2o, Q8o, Q5o, J8o, T7o-T8o, 98o, 86o+, 76o, 65o, 54o.

Always fold: 82s, 72s, K6o, K3o, Q6o-Q7o, Q2o-Q4o, J2o-J7o, T5o-T6o, 94o-97o, 84o-85o, 74o-75o, 64o, 53o, 43o
Always call: QQ+, 22-55, A8s-AJs, A4s-A6s, K9s+, K2s-K6s, Q2s+, J5s+, J2s, T6s-T8s, T2s, 95s+, 84s+, 74s+, 62s+, 52s+, 42s+, 32s, A9o-ATo, A3o, K9o+, Q9o+, J9o+, T9o
Always all-in 40bb: AQo+
Mixed: 66-JJ, AQs+, A7s, A2s-A3s, K7s-K8s, J3s-J4s, T9s, T3s-T4s, 92s-93s, 83s, 73s, AJo, A4o-A8o, A2o, K7o-K8o, K4o-K5o, K2o, Q8o, Q5o, J8o, T7o-T8o, 98o, 86o+, 76o, 65o, 54o

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.