Americas Cardroom OSS 2026 Returns With $20M Guaranteed!

ACR poker, aka Americas Cardroom, is bringing back one of its biggest online poker tournament series of the year, with the Online Super Series (OSS) returning from May 11 to May 25.

The popular ACR Poker series features more than $20 million in guaranteed prize pools spread across 171 tournaments, with buy-ins ranging from $5.50 all the way up to $2,650. For players searching for large online poker tournaments, big guarantees, and accessible buy-ins, the OSS once again delivers one of the biggest schedules currently available online.

ACR Poker OSS Main Events

Several major Main Events headline the Americas Cardroom OSS schedule, including:

• $2,650 Main Event — $1.5 Million Guaranteed
• $1,050 Main Event — $1.5 Million Guaranteed
• $215 Main Event — $1 Million Guaranteed
• $66 Main Event — $250,000 Guaranteed

All Main Event Day 2s take place on Monday, May 25.

Alongside the headline events, players can also compete in a $630 multi-flight tournament carrying a $1 million guarantee running throughout the series.

Mystery Bounty Tournaments Continue to Grow

Mystery Bounty tournaments remain one of the most popular online poker formats in 2026, and ACR Poker has included several large guaranteed Mystery Bounty events as part of the OSS.

Highlighted tournaments include:

• $750K Guaranteed Mystery Bounty
• $150K Guaranteed Mystery Bounty
• $75K Guaranteed Mystery Bounty

Many of these events began running in late April, giving players multiple Day 1 opportunities to build stacks before the final stages.

Low Buy-Ins to High Roller Events

One of the reasons the Online Super Series continues to attract strong traffic is the range of buy-ins available throughout the schedule.

Players can jump into:

• Micro-stakes tournaments from $5.50
• Mid-stakes MTTs around the $55 to $215 range
• High roller events up to $2,650

Unlike some poker series that focus almost entirely on high-stakes grinders, the OSS schedule gives recreational players and smaller bankrolls plenty of opportunities to compete for large prize pools.

Chris Moneymaker Promotes the OSS

Americas Cardroom ambassador Chris Moneymaker is once again helping promote the series. Moneymaker famously won the 2003 WSOP Main Event, helping fuel the original online poker boom and becoming one of the most recognisable names in poker history.

Having a former WSOP champion actively involved with the platform continues to give ACR Poker strong visibility within the online poker community.

ACR Poker Leaderboard Promotion

In addition to the tournament guarantees, Americas Cardroom is also running a $30,500 leaderboard competition throughout the OSS.

The leaderboard rewards players who consistently perform well across multiple tournaments during the series, adding extra value for grinders planning to play a full schedule.

Why Players Continue to Choose Americas Cardroom

Americas Cardroom has remained one of the most popular online poker sites for tournament players thanks to its consistently large guarantees and active tournament schedule.

Some of the biggest reasons players continue to play on ACR Poker include:

• Large guaranteed tournament series
• Frequent online poker festivals
• Strong tournament traffic
• Buy-ins for all bankroll levels
• Mystery Bounty events
• Satellite qualifiers into major events
• Large-field MTTs
• Additional leaderboard value

For players searching for major online poker tournaments in 2026, the return of the OSS once again makes Americas Cardroom one of the busiest destinations in online poker over the next two weeks.

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