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ACR Online Super Series Is Back: $20M GTD, 171 Events, Two Weeks Starting May 11
- $20M+ guaranteed over 171 ACR OSS events, May 11-25, 2026
- Main Events & Mystery Bounties for all buy-in levels, leaderboard prizes
- No events on Fridays or Saturdays for player flexibility
ACR Poker's Online Super Series runs May 11 to 25, 2026, with $20M guaranteed across 171 events.
(credit: ACR Poker)
Americas Cardroom's Online Super Series returns May 11 to 25, 2026 with $20,000,000 guaranteed across 171 events. Buy-ins run from $5.50 to $2,650, there are no events on Fridays or Saturdays, and Mystery Bounty Day 1 flights have been running since April 26. Somebody at ACR has their priorities sorted.
ACR Poker OSS May 2026 Details
| Detail | Info |
|---|---|
| Dates | May 11 to 25, 2026 |
| Total Events | 171 |
| Total GTD | $20,000,000+ |
| Buy-Ins | $5.50 to $2,650 |
| Leaderboard | $30,500 |
| No Events On | Fridays and Saturdays |
| Main Event Buy-Ins | $66, $215, $1,050, $2,650 |
Three Main Events and a Price Point for Every Bankroll
All three flagship Main Events share the same structure: Day 1A on May 17, Day 1B on May 24, and Day 2 on May 25. Best stack from multiple Day 1s carries forward. The series also includes a standalone "Other Main Event" at $66 with a $250,000 guarantee, firing Sunday May 24 at 11:30 ET.
| Event | Buy-In | GTD | Day 1A | Day 2 |
|---|---|---|---|---|
| OSS High Main Event | $2,650 | $1,500,000 | May 17 | May 25 |
| OSS Medium Main Event | $1,050 | $1,500,000 | May 17 | May 25 |
| OSS Low Main Event | $215 | $1,000,000 | May 17 | May 25 |
| OSS Multi-Flight Main Event | $630 | $1,000,000 | May 11 | May 25 |
The ACR OSS Mystery Bounty Flights Nobody Told You Were Already Running
Mystery Bounties are part of how ACR operates and the OSS delivers three levels of them. The Dual Mystery Bounty Venoms just wrapped up in April 2026 with some notable paydays. The OSS picks up where they left off, with flights already live at every buy-in tier.
| Event | Buy-In | GTD | Flights | Day 2 |
|---|---|---|---|---|
| Mystery Bounty | $109 | $750,000 | April 26 to May 25 | May 25 |
| Mystery Bounty | $33 | $150,000 | April 26 to May 24 | May 24 |
| Mystery Bounty | $6 | $75,000 | April 26 to May 24 | May 24 |
$30,500 Up for Grabs In OSS May 2026 Leaderboard
The $30,500 OSS leaderboard runs the full two weeks and rewards volume, not just results. Points stack automatically from every tournament entered across all buy-in tiers. Consistent play compounds into real prize money regardless of individual results. The previous OSS XL leaderboard paid its top finisher $15,000 on top of regular cash winnings, with separate High, Medium, and Low tier prizes distributed throughout. This is either good news or a reason to clear your schedule for two weeks. Possibly both.
The Last OSS XL Finished $10M Over GTD
The March 2026 OSS XL drew 569,903 entries from 128 countries and paid out over $60M against a $50M guarantee. The May regular edition runs at a fraction of that scale. The structure, prize mechanic, and track record are identical.
| Event | Entries | Winner | Top Prize |
|---|---|---|---|
| $2,650 OSS XL Main Event | 994 | Rushgold | $480,796 |
| $1,050 OSS XL Main Event | 2,298 | DificilHein | $304,208 |
| $215 OSS XL Main Event | 5,159 | manuelmpc | $151,557 |
| $109 Sunday Moneymaker | 4,225 | PERRYNELL | $64,418 |
ACR Poker OSS Highlight Schedule: Where the Money Lands Each Day
| Date | Standout Events | Top GTD |
|---|---|---|
| May 11 | Series opens, Multi-Flight Main Day 1 fires | $200,000 |
| May 12 | Mystery Bounty flights, Loncar Daily Doubles | $100,000 |
| May 13 | 6-Max PKO block, PLO8 events | $100,000 |
| May 14 | High Roller PKO $630, $200K GTD | $200,000 |
| May 15 | $200K GTD ($630 and $2,650), $100K PKO ($1,050) | $200,000 |
| May 16 | No events | |
| May 17 | No events | |
| May 17 | Main Event Day 1A all three buy-ins, $600K GTD block | $1,500,000 |
| May 18 | $200K GTD ($1,050), $100K PKO ($630) | $200,000 |
| May 19 | Mystery Bounty 6-Max block, $100K GTD ($630) | $100,000 |
| May 20 | PLO8 Mystery Bounty block, $75K GTD ($630) | $75,000 |
| May 21 | $200K GTD ($630 and $2,650), $100K PKO ($1,050) | $200,000 |
| May 22 | No events | |
| May 23 | No events | |
| May 24 | Main Event Day 1B all three buy-ins, Other Main $66, Mystery Bounty finals | $1,500,000 |
| May 25 | All Day 2s: $1.5M Mains x2, $1M Main, $750K Mystery Bounty | $1,500,000 |
171 Events, No Fridays, No Saturdays: There Are Worse Ways to Spend Two Weeks
The OSS runs May 11 to 25 with $20M guaranteed, buy-ins from $5.50 to $2,650, and a schedule that respects the fact that most players have a life outside the client. Twelve playing days, three Major Main Events, four Mystery Bounty multi-flights, and a $30,500 leaderboard that rewards anyone willing to put in the volume.
May 25 is the series finale with every major Day 2 running simultaneously, making it one of the bigger single days on ACR's calendar this spring. The OSS XL beat its guarantee by $10M in March. The regular edition has earned the same expectation.
Full schedule at ACR Poker.
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