PokerSolver
PokerSolver/Heads-up · 50bb · SB 0.5bb · no rake · chip EV/SB vs BB 3-bet 7.5bb

SB vs BB 3-bet 7.5bb

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 50bb · SB opens 3bb, BB 3-bets to 7.5bb · 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 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 · 50bb · SB 0.5bb · no rake · chip EVChange game
Stacks (bb), if they differ
Pot 10.5bbYour cards?
3bb
7.5bb

Tap your two cards.

Small blind / button's range

1,262 of 1,326 combos get here
Fold 42.2%Call 51.6%All-in 50bb 6.2%
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 3bb, BB 3-bets to 7.5bb in Heads-up · SB 0.5bb · no rake · chip EV at 50bb?

SB opens 3bb, BB 3-bets to 7.5bb in Heads-up · SB 0.5bb · no rake · chip EV, 50bb: the small blind / button (SB) folds 42.2%, calls 51.6% and goes all-in 50bb 6.2%. Always call: KK+, 22-66, A9s-AQs, A5s, KQs, K7s-K9s, K2s-K4s, Q6s+, Q2s-Q4s, J7s+, J3s-J5s, T6s+, T3s, 98s, 95s-96s, 85s+, 76s, 62s+, 53s+, 43s, 32s, A9o, A6o, A3o-A4o, KTo+, K8o, Q9o+, J8o+, T9o, 76o, 65o. Always all-in 50bb: JJ, AKo. Mixed: QQ, 77-TT, AKs, A6s-A8s, A2s-A4s, KTs-KJs, K5s-K6s, T4s-T5s, T2s, 93s, 72s, 52s, 42s, ATo-AQo, A8o, A5o, A2o, K9o, K5o-K7o, Q8o, Q5o-Q6o, T8o, 97o, 87o, 75o, 54o.

Always fold
94s, 92s, 82s-84s, 73s, K2o-K4o, Q7o, Q2o-Q4o, J2o-J7o, T2o-T7o, 93o-96o, 84o-86o, 73o-74o, 62o-64o, 52o-53o, 43o
Always call
KK+, 22-66, A9s-AQs, A5s, KQs, K7s-K9s, K2s-K4s, Q6s+, Q2s-Q4s, J7s+, J3s-J5s, T6s+, T3s, 98s, 95s-96s, 85s+, 76s, 62s+, 53s+, 43s, 32s, A9o, A6o, A3o-A4o, KTo+, K8o, Q9o+, J8o+, T9o, 76o, 65o
Always all-in 50bb
JJ, AKo
Mixed
QQ, 77-TT, AKs, A6s-A8s, A2s-A4s, KTs-KJs, K5s-K6s, T4s-T5s, T2s, 93s, 72s, 52s, 42s, ATo-AQo, A8o, A5o, A2o, K9o, K5o-K7o, Q8o, Q5o-Q6o, T8o, 97o, 87o, 75o, 54o
Settings: Heads-up · 50bb · SB 0.5bb · no rake · chip EV (small blind 0.5bb, big blind 1bb, 50bb 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 32.63). 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.