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

BB vs SB 3-bet 7.5bb

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 50bb · SB limps, BB isolates to 3bb, SB 3-bets to 7.5bb · 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 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

PlayersBlinds & rakeStacks

Stacks (bb), if they differSBBB

Pot 10.5bbYour cards?

3bb

7.5bb

Tap your two cards.

Big blind's range

1,070 of 1,326 combos get here

Fold 60.7%Call 29.1%All-in 50bb 10.2%

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

What is the GTO play for the big blind (BB) when SB limps, BB isolates to 3bb, SB 3-bets to 7.5bb in Heads-up · SB 0.5bb · no rake · chip EV at 50bb?

SB limps, BB isolates to 3bb, SB 3-bets to 7.5bb in Heads-up · SB 0.5bb · no rake · chip EV, 50bb: the big blind (BB) folds 60.7%, calls 29.1% and goes all-in 50bb 10.2%. Always call: AA, 88, AJs, A7s, A2s-A3s, KTs+, K8s, QJs, JTs, T8s+, ATo, KQo, QJo. Always all-in 50bb: QQ, TT, AKs, AKo. Mixed: KK, JJ, 99, 22-77, AQs, A8s-ATs, A4s-A6s, K9s, K2s-K7s, Q5s-QTs, Q2s, J7s-J9s, J5s, J3s, T7s, T5s, 97s+, 95s, 84s+, 73s+, 63s+, 52s+, 43s, AJo-AQo, A5o-A9o, A3o, K5o-KJo, Q9o-QTo, JTo, T9o, 98o.

Always fold: Q3s-Q4s, J6s, J4s, J2s, T6s, T2s-T3s, 96s, 92s-94s, 82s-83s, 72s, 62s, 42s, 32s, A2o, K4o, K2o, Q8o, Q5o, J7o-J9o, J4o-J5o, J2o, T7o-T8o, T5o, 95o-97o, 84o+, 74o+, 63o+, 53o+
Always call: AA, 88, AJs, A7s, A2s-A3s, KTs+, K8s, QJs, JTs, T8s+, ATo, KQo, QJo
Always all-in 50bb: QQ, TT, AKs, AKo
Mixed: KK, JJ, 99, 22-77, AQs, A8s-ATs, A4s-A6s, K9s, K2s-K7s, Q5s-QTs, Q2s, J7s-J9s, J5s, J3s, T7s, T5s, 97s+, 95s, 84s+, 73s+, 63s+, 52s+, 43s, AJo-AQo, A5o-A9o, A3o, K5o-KJo, Q9o-QTo, JTo, T9o, 98o

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.