PokerSolver/Heads-up · 40bb · SB 0.5bb · no rake · chip EV/BB vs SB open 2bb

BB vs SB open 2bb

Heads-up · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · 40bb · SB opens 2bb · 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 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 3bbYour cards?

1bb

2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 16.5%Call 57.7%Raise 5bb 15.3%All-in 40bb 10.5%

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

What is the GTO play for the big blind (BB) when SB opens 2bb in Heads-up · SB 0.5bb · no rake · chip EV at 40bb?

SB opens 2bb in Heads-up · SB 0.5bb · no rake · chip EV, 40bb: the big blind (BB) folds 16.5%, calls 57.7%, raises 5bb 15.3% and goes all-in 40bb 10.5%. Always call: K6s, K4s, K2s, QTs, Q2s-Q5s, J8s, J6s, J2s-J3s, T8s, T2s-T4s, 92s-94s, 82s-83s, 72s-74s, 62s, 52s, 42s, 32s, A6o, A2o, K2o-K7o, Q2o-Q6o, J9o, J5o-J7o, T6o-T8o, 96o, 85o-86o, 76o, 74o, 64o, 53o+. Always raise 5bb: JJ+, AQs+, A9s-ATs, KQs, K8s, Q8s. Always all-in 40bb: 66, 44, AJo-AQo. Mixed: 77-TT, 55, 22-33, AJs, A2s-A8s, K9s-KJs, K7s, K5s, K3s, QJs, Q9s, Q6s-Q7s, J9s+, J7s, J4s-J5s, T9s, T5s-T7s, 95s+, 84s+, 75s+, 63s+, 53s+, 43s, AKo, A7o-ATo, A3o-A5o, K8o+, Q7o+, JTo, J8o, J2o-J4o, T9o, T4o-T5o, 97o+, 95o, 87o, 75o, 65o, 43o.

Always fold: T2o-T3o, 92o-94o, 82o-84o, 72o-73o, 62o-63o, 52o, 42o, 32o
Always call: K6s, K4s, K2s, QTs, Q2s-Q5s, J8s, J6s, J2s-J3s, T8s, T2s-T4s, 92s-94s, 82s-83s, 72s-74s, 62s, 52s, 42s, 32s, A6o, A2o, K2o-K7o, Q2o-Q6o, J9o, J5o-J7o, T6o-T8o, 96o, 85o-86o, 76o, 74o, 64o, 53o+
Always raise 5bb: JJ+, AQs+, A9s-ATs, KQs, K8s, Q8s
Always all-in 40bb: 66, 44, AJo-AQo
Mixed: 77-TT, 55, 22-33, AJs, A2s-A8s, K9s-KJs, K7s, K5s, K3s, QJs, Q9s, Q6s-Q7s, J9s+, J7s, J4s-J5s, T9s, T5s-T7s, 95s+, 84s+, 75s+, 63s+, 53s+, 43s, AKo, A7o-ATo, A3o-A5o, K8o+, Q7o+, JTo, J8o, J2o-J4o, T9o, T4o-T5o, 97o+, 95o, 87o, 75o, 65o, 43o

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.