OSS Returns to ACR Poker in May 2026

The Online Super Series, with a guaranteed prize pool over $20,000,000, will run from May 11th to 25th, 2026. However, flights for some tournaments have been running since the end of April — you’ll find these and other details about the series in this article.

Key Details of OSS

• 171 tournaments
• Buy-ins from $5.50 to $2,650
• Guarantees up to $1,500,000
• Start daily except Friday and Saturday
• Four Main Events
• $30,500 Leaderboard

OSS Main Events

The series features four highlights: three 2-day events and one single-day event.

All three 2-day Main Events have the same schedule:

• Day 1A starts at 15:05 UTC on May 17th, 2026
• Day 1B starts at 15:05 UTC on May 24th, 2026
• Day 2 starts at 17:30 UTC on May 25th, 2026

They have an almost identical structure:

• Format — 8-Max
• Starting stack — 218.75 bb in #1 and #2, 187.5 bb in #3
• Unlimited re-entry
• Late Registration — 32 levels of 15 minutes
• Duration of Day 1 — 37 levels in #1 and #2, 35 levels in #3

The only single-day Main Event — OSS #4 with a $66 buy-in and a $250,000 guaranteed prize pool — starts at 15:30 UTC on May 24th, 2026.

By the way, the first major satellite starts on May 3rd at 21:05 UTC — it is $95 Beast & SnC OSS #1 MEGA – 20 Seats GTD.

OSS Multi-Flighted Secondary Events

Flights for three events — #6, #7 and #8 — will start simultaneously every day from the end of April until the start of Day 2 of each of them:

OSS Leaderboard

The series features a $30,500 leaderboard with prizes paid out in cash and tickets.

Points are calculated for participation in OSS tournaments according to the formula:

Square Root (prize pool) / Square Root (finishing place in ITM)

You can track the leaderboard directly on the ACR Poker website — there is a dedicated page for this purpose.