ACR Poker OSS XL: 8 Multi-Day Events, $9.725M GTD

September at ACR Poker is not built for one-shot tournaments. Eight major multi-day and multi-flight events are running right now, with buy-ins from $5.50 to $2,650 and $9.725 million guaranteed between them.

If you have ever busted a big Sunday and wished you had another bullet, this is the month for you.

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What Is Running at ACR Poker in September 2026

Two things are happening at the same time, and together they create the biggest multi-day schedule ACR Poker has run this year.

• OSS XL – the Online Super Series XL runs through September 29th with 336 events and more than $50 million in total guarantees.
• The 25th Anniversary Tournament – a $250 buy-in event with a $2.5 million guarantee and 41 Day 1 flights.

Strip out the single-session events, and you are left with eight tournaments that give you more than one way in. Here is the full picture.

All Eight Multi-Day Events

The Three ACR Poker OSS XL Main Events

Most series give you one Main Event. OSS XL gives you three, at three very different price points.

$2,650 Main Event – $2.5 Million Guaranteed

This is the headline tournament of the series and the biggest guarantee on the OSS XL schedule.

• Day 1A: Sunday, September 20th
• Day 1B: Sunday, September 27th
• Day 2: Monday, September 28th
• Final table: Tuesday, September 29th

$1,050 Main Event – $2 Million Guaranteed

Same schedule, same structure, less than half the buy-in. If $2,650 is outside your bankroll but you still want a shot at a seven-figure prize pool, this is the one.

$66 Main Event – $500,000 Guaranteed

This is where most players should be looking, and it starts first.

• Day 1A: Sunday, September 13th
• Day 1B: Sunday, September 20th
• Day 2: Sunday, September 27th

ACR Poker is also running $6.60 satellites into it. That is a 100-to-1 shot at a half-million-dollar prize pool. Fire a few and you have a cheap route into a headline event.

Four More Multi-Flight Events Worth $2.225 Million

The Main Events are not the only tournaments giving you multiple bullets. Four more multi-flight events are running, and three of them are Mystery Bounties.

$630 Multi-Flight – $1.5 Million Guaranteed

The biggest of the four. Day 1 flights continue throughout September, so you can pick your spot and re-enter across different days before Day 2 on September 28th.

$109 Mystery Bounty – $500,000 Guaranteed

Flights run through September 21st, with Day 2 later that same day. Mystery Bounty format means every knockout after the bubble pays out a random prize, so your equity is not tied to a deep run alone.

$33 and $5.50 Mystery Bounties

Two cheap routes into the same format:

• $33 buy-in – $150,000 guaranteed, Day 1 flights through September 27th
• $5.50 buy-in – $75,000 guaranteed, Day 1 flights through September 27th

That $5.50 event is the story of the whole series. The same schedule, with a $2,650 Main Event, also lets you chase a multi-day title for less than the price of a coffee.

The $2.5 Million 25th Anniversary Tournament Is Still Building

This one deserves its own section because it doesn’t work like a normal multi-flight event.

ACR Poker’s 25th Anniversary Tournament carries a $2.5 million guarantee for a $250 buy-in and has now expanded to 41 Day 1 flights.

Why the Cumulative-Stack Format Matters

In a standard multi-flight tournament, you qualify once, and that stack is what you take to Day 2. Qualify twice, and you keep the bigger one. The rest is wasted.

The Anniversary Tournament does not work that way. It uses a cumulative-stack format:

• Qualify once and your chips advance to Day 2
• Qualify again and the new stack is added to the first
• Keep qualifying and keep stacking

So if you are already through, you are not done. Every extra flight you win makes your Day 2 starting stack bigger. That is a real edge for anyone willing to put in volume over the final flights.

Remaining Anniversary Schedule

• Regular and Turbo Day 1 flights running now
• Day 2: Monday, September 28th
• Final table: Tuesday, September 29th
• Satellites from $1.05 into selected Saturday Turbo flights

Enter the 25th Anniversary Tournament at ACR Poker

How to Pick the Right Events for Your Bankroll

Eight events is a lot to sort through. Here is the quick version.

Why Play These at ACR Poker

Guarantees only matter if the site behind them delivers. A few things worth knowing:

• 25 years of operation – the Anniversary Tournament exists because ACR Poker has been running since 2001
• Deep tournament schedule – 336 OSS XL events and more than $50 million guaranteed in a single series
• Fast, flexible cashiering – crypto and card deposits supported, with crypto payouts the quickest route out
• Softer fields – the low buy-in flights pull heavy recreational traffic, especially on weekends

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Read our full ACR Poker review or check the latest ACR Poker bonus code offers before you deposit.

Time Is Running Short

Most of the big Day 2s and final tables land on September 28th and 29th. That means the window to build a stack is now, not next week.

The $66 Main Event Day 1A goes on Sunday, September 13th. The Anniversary flights are still running. The $5.50 and $33 Mystery Bounties run through Day 1s on September 27th.

If you want in on any of it, register before the flights close.

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