PokerSolver
PokerSolver/3-handed · BTN 20bb, SB 10bb, BB 20bb · SB 0.5bb · no rake · chip EV/BB vs SB iso raise 3bb

BB vs SB iso raise 3bb

3-handed · SB 0.5bb · no rake · chip EV (blinds 0.5/1bb, no ante) · BTN 20bb, SB 10bb, BB 20bb · BTN limps, SB isolates to 3bb · Big blind to act

Fits exactlyGGPoker Spin & Gold x4, x5PokerStars Spin & Go x4, x5partypoker SPINS Overdrive 3-3.99x, 4-4.99x, 5-9.99xWPT Global Global Spins x2, x3, x5
Close16 games
  • GGPoker Spin & Gold x10pays 80/20 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • GGPoker Spin & Gold x50, x100pays 60/30/10 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • GGPoker Spin & Gold Maxpays 50/30/20 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • PokerStars Spin & Go x10pays 80/20 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • PokerStars Spin & Go x25, x50, x100pays 80/12/8 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • PokerStars Spin & Go top tierpays 83.33/10/6.67 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • Winamax Expresso x2, x3, x4, x5, x10, x20its pages do not say whether any level has an ante
  • Winamax Expresso x100, x400, x1,000, jackpotpays 80/12/8 there: under ICM calls of an all-in are tighter; this chart is chip EV; its pages do not say whether any level has an ante
  • partypoker SPINS Overdrive 10-24.99xpays 80/20 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • partypoker SPINS Overdrive 25-119.99x, 120-239.99x, 240x+pays 83.34/8.33/8.33 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • iPoker Twister x2, x3, x5, x8its pages do not say whether any level has an ante
  • iPoker Twister x50its sources disagree on the split (winner takes all, or 80/10/10); its pages do not say whether any level has an ante
  • iPoker Twister x1,000pays 80/10/10 there: under ICM calls of an all-in are tighter; this chart is chip EV; its pages do not say whether any level has an ante
  • WPT Global Global Spins x10, x25pays 80/10/10 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • WPT Global Global Spins x120, x240, x6,000pays 83.33/8.33/8.33 there: under ICM calls of an all-in are tighter; this chart is chip EV
  • ACR Poker SPINZ x2, x3, x4, x5, x10, x25, x50, x100, x12,000its prize split is not published; its blinds are not published
Cash
3-handed · BTN 20bb, SB 10bb, BB 20bb · SB 0.5bb · no rake · chip EVChange game
Stacks (bb), if they differ
Pot 5bbYour cards?
1bb
1bb
3bb

Tap your two cards.

Big blind's range

1,326 of 1,326 combos get here
Fold 83.9%Call 3.5%Raise 7.5bb 4.5%All-in 20bb 8.2%
Tap a hand, or type one above, to see its exact mix.

What is the GTO play for the big blind (BB) when BTN limps, SB isolates to 3bb in 3-handed · SB 0.5bb · no rake · chip EV at BTN 20bb, SB 10bb, BB 20bb?

BTN limps, SB isolates to 3bb in 3-handed · SB 0.5bb · no rake · chip EV, BTN 20bb, SB 10bb, BB 20bb: the big blind (BB) folds 83.9%, calls 3.5%, raises 7.5bb 4.5% and goes all-in 20bb 8.2%. Always all-in 20bb: AA, QQ, AQs, ATs, A5s, AKo. Mixed: KK, 22-JJ, AKs, AJs, A6s-A9s, A2s-A4s, K8s+, K6s, Q8s-QTs, JTs, J8s, T9s, T4s, 96s, 75s+, 65s, 62s, A7o-AQo, A5o, KJo+, QJo, T9o.

Always fold
K7s, K2s-K5s, QJs, Q2s-Q7s, J9s, J2s-J7s, T5s-T8s, T2s-T3s, 97s+, 92s-95s, 82s+, 72s-74s, 63s-64s, 52s+, 42s+, 32s, A6o, A2o-A4o, K2o-KTo, Q2o-QTo, J2o+, T2o-T8o, 92o+, 82o+, 72o+, 62o+, 52o+, 42o+, 32o
Always call
No hand plays this every time
Always raise 7.5bb
No hand plays this every time
Always all-in 20bb
AA, QQ, AQs, ATs, A5s, AKo
Mixed
KK, 22-JJ, AKs, AJs, A6s-A9s, A2s-A4s, K8s+, K6s, Q8s-QTs, JTs, J8s, T9s, T4s, 96s, 75s+, 65s, 62s, A7o-AQo, A5o, KJo+, QJo, T9o
Settings: 3-handed · BTN 20bb, SB 10bb, BB 20bb · SB 0.5bb · no rake · chip EV (small blind 0.5bb, big blind 1bb, stacks BTN 20bb, SB 10bb, BB 20bb, 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 8.96). 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; pokerstars.com/poker/spin-and-go (stacks and prize tables; fetched 2026-10-31); blinds from worldpokerdeals.com/blog/pokerstars-new-spin-go-multipliers-and-1000-spins (2026-05-27; its blind table lists no ante), 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); winamax.fr/expresso (stacks, first blinds and prize tables; the same on winamax.es), fetched 2026-10-31; worldpokerdeals.com/blog/ipoker-twister-guide (2026-01-29; stacks and splits) and pokerstrategy.com/strategy/sit-and-go/twister-poker-let-go (first blinds), fetched 2026-10-31; worldpokerdeals.com/blog/winning-poker-network-new-1-000-000-spin-go (2025-12-05; stacks only), fetched 2026-10-31.