PokerSolver/Heads-up · 50bb · 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) · 50bb · 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 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 3bbYour cards?

1bb

2bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here

Fold 15.8%Call 59%Raise 5bb 17.9%All-in 50bb 7.3%

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 50bb?

SB opens 2bb in Heads-up · SB 0.5bb · no rake · chip EV, 50bb: the big blind (BB) folds 15.8%, calls 59%, raises 5bb 17.9% and goes all-in 50bb 7.3%. Always call: 22-33, A6s, K7s, K4s-K5s, Q6s-Q7s, J3s-J5s, T5s, T2s-T3s, 92s-95s, 82s-83s, 72s-74s, 64s, 62s, 52s, 42s, 32s, A6o, A4o, A2o, KTo, K2o-K5o, QTo, Q2o-Q7o, J5o-J9o, T6o-T8o, 95o-97o, 85o+, 75o, 64o+, 54o. Always raise 5bb: JJ+, A8s+, A5s, KJs+, K8s, QTs+, T9s, 98s, 65s, A9o, KJo+. Always all-in 50bb: 66, AQo+. Mixed: 77-TT, 44-55, A7s, A2s-A4s, K9s-KTs, K6s, K2s-K3s, Q8s-Q9s, Q2s-Q5s, J6s+, J2s, T6s-T8s, T4s, 96s-97s, 84s+, 75s+, 63s, 53s+, 43s, ATo-AJo, A7o-A8o, A5o, A3o, K6o-K9o, QJo, Q8o-Q9o, JTo, J2o-J4o, T9o, T2o-T5o, 98o, 84o, 76o, 63o, 53o, 43o.

Always fold: 92o-94o, 82o-83o, 72o-74o, 62o, 52o, 42o, 32o
Always call: 22-33, A6s, K7s, K4s-K5s, Q6s-Q7s, J3s-J5s, T5s, T2s-T3s, 92s-95s, 82s-83s, 72s-74s, 64s, 62s, 52s, 42s, 32s, A6o, A4o, A2o, KTo, K2o-K5o, QTo, Q2o-Q7o, J5o-J9o, T6o-T8o, 95o-97o, 85o+, 75o, 64o+, 54o
Always raise 5bb: JJ+, A8s+, A5s, KJs+, K8s, QTs+, T9s, 98s, 65s, A9o, KJo+
Always all-in 50bb: 66, AQo+
Mixed: 77-TT, 44-55, A7s, A2s-A4s, K9s-KTs, K6s, K2s-K3s, Q8s-Q9s, Q2s-Q5s, J6s+, J2s, T6s-T8s, T4s, 96s-97s, 84s+, 75s+, 63s, 53s+, 43s, ATo-AJo, A7o-A8o, A5o, A3o, K6o-K9o, QJo, Q8o-Q9o, JTo, J2o-J4o, T9o, T2o-T5o, 98o, 84o, 76o, 63o, 53o, 43o

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.