PokerSolver/Heads-up · 75bb · SB 0.5bb · no rake · chip EV/SB vs BB 3-bet 6.25bb

SB vs BB 3-bet 6.25bb

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 75bb · SB opens 2.5bb, BB 3-bets to 6.25bb · 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 8.75bbYour cards?

2.5bb

6.25bb

Tap your two cards.

Small blind / button's range

1,254 of 1,326 combos get here

Fold 31.3%Call 66.1%All-in 75bb 2.5%

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 3-bets to 6.25bb in Heads-up · SB 0.5bb · no rake · chip EV at 75bb?

SB opens 2.5bb, BB 3-bets to 6.25bb in Heads-up · SB 0.5bb · no rake · chip EV, 75bb: the small blind / button (SB) folds 31.3%, calls 66.1% and goes all-in 75bb 2.5%. Always call: KK+, 22-TT, A8s+, A2s-A6s, KTs+, K3s-K7s, Q2s+, J2s+, T2s+, 94s+, 92s, 83s+, 72s+, 62s+, 52s+, 43s, 32s, A9o-AJo, A3o-A7o, KJo+, K8o-K9o, Q8o+, J8o+, T8o+, 97o+, 86o+, 76o, 65o, 53o+. Mixed: JJ-QQ, A7s, K8s-K9s, K2s, 42s, AQo+, A8o, A2o, KTo, K2o-K7o, Q7o, Q4o, 96o, 75o, 64o, 43o.

Always fold: 82s, Q5o-Q6o, Q2o-Q3o, J2o-J7o, T3o-T6o, 93o-95o, 84o-85o, 74o, 62o-63o, 52o
Always call: KK+, 22-TT, A8s+, A2s-A6s, KTs+, K3s-K7s, Q2s+, J2s+, T2s+, 94s+, 92s, 83s+, 72s+, 62s+, 52s+, 43s, 32s, A9o-AJo, A3o-A7o, KJo+, K8o-K9o, Q8o+, J8o+, T8o+, 97o+, 86o+, 76o, 65o, 53o+
Always all-in 75bb: No hand plays this every time
Mixed: JJ-QQ, A7s, K8s-K9s, K2s, 42s, AQo+, A8o, A2o, KTo, K2o-K7o, Q7o, Q4o, 96o, 75o, 64o, 43o

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.