PokerSolver
PokerSolver/Heads-up · 75bb · SB 0.5bb · no rake · chip EV/SB vs BB iso raise 2.5bb

SB vs BB iso raise 2.5bb

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 75bb · SB limps, BB isolates to 2.5bb · 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
Stacks (bb), if they differ
Pot 3.5bbYour cards?
1bb
2.5bb

Tap your two cards.

Small blind / button's range

1,254 of 1,326 combos get here
Fold 18.2%Call 60.3%Raise 6.25bb 21.2%All-in 75bb 0.3%
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 limps, BB isolates to 2.5bb in Heads-up · SB 0.5bb · no rake · chip EV at 75bb?

SB limps, BB isolates to 2.5bb in Heads-up · SB 0.5bb · no rake · chip EV, 75bb: the small blind / button (SB) folds 18.2%, calls 60.3%, raises 6.25bb 21.2% and goes all-in 75bb 0.3%. Always call: 22-44, A7s, A2s, KQs, KTs, K4s-K6s, Q8s-QTs, Q3s-Q5s, JTs, J7s, J5s, J3s, 94s-96s, 92s, 86s, 84s, 54s, 42s, 32s, A4o-A5o, KTo, K8o, K5o, K2o-K3o, Q9o-QTo, Q5o-Q7o, Q3o, T7o-T8o, 96o+, 75o, 64o+, 54o. Always raise 6.25bb: KK+, 99-JJ, AQs+, ATs, Q2s, 83s, 73s, ATo+, KQo, K9o. Mixed: QQ, 66-88, A8s-A9s, A6s, A3s, KJs, K7s-K8s, K2s-K3s, QJs, Q6s-Q7s, J8s-J9s, J6s, J4s, J2s, T9s, T2s-T7s, 97s+, 93s, 85s, 82s, 74s+, 72s, 64s+, 62s, 52s-53s, 43s, A6o-A9o, A2o-A3o, KJo, K6o-K7o, K4o, QJo, Q8o, Q4o, J3o+, T9o, T5o-T6o, 95o, 85o+, 76o, 74o, 53o, 43o.

Always fold
Q2o, J2o, T2o-T4o, 93o-94o, 83o-84o, 73o, 63o, 52o
Always call
22-44, A7s, A2s, KQs, KTs, K4s-K6s, Q8s-QTs, Q3s-Q5s, JTs, J7s, J5s, J3s, 94s-96s, 92s, 86s, 84s, 54s, 42s, 32s, A4o-A5o, KTo, K8o, K5o, K2o-K3o, Q9o-QTo, Q5o-Q7o, Q3o, T7o-T8o, 96o+, 75o, 64o+, 54o
Always raise 6.25bb
KK+, 99-JJ, AQs+, ATs, Q2s, 83s, 73s, ATo+, KQo, K9o
Always all-in 75bb
No hand plays this every time
Mixed
QQ, 66-88, A8s-A9s, A6s, A3s, KJs, K7s-K8s, K2s-K3s, QJs, Q6s-Q7s, J8s-J9s, J6s, J4s, J2s, T9s, T2s-T7s, 97s+, 93s, 85s, 82s, 74s+, 72s, 64s+, 62s, 52s-53s, 43s, A6o-A9o, A2o-A3o, KJo, K6o-K7o, K4o, QJo, Q8o, Q4o, J3o+, T9o, T5o-T6o, 95o, 85o+, 76o, 74o, 53o, 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.