ACR Poker OSS XL Sunday Offers $4.06M in Guarantees

ACR Poker has been part of the online poker landscape since 2001 and continues to attract players from the U.S., Latin America and other international markets.

The room is also investing beyond its tournament schedule. Recent software upgrades shaped by player feedback are designed to make the client faster, smoother and easier to use.

Combined with regular rewards, major guarantees and a packed tournament calendar, those improvements give players plenty of reasons to stay active.

But September is where things really heat up. ACR Poker is running eight major multi-day events with a combined $9.725 million guaranteed.

Buy-ins range from just $5.50 all the way up to $2,650, covering everything from low-cost Mystery Bounties to major championship events.

That broad spread gives smaller bankrolls, regular grinders and high-stakes players several shots at one of the busiest tournament months on ACR Poker’s current schedule.

ACR Loads $4.06M Into OSS XL Sunday

ACR Poker is putting more than $4 million in published guarantees on the table on Sunday, September 13, including a $500K Main Event, several major high rollers and Mini Phil’s Thrill.

Sunday is already the biggest day of the week for many online tournament players. On September 13, ACR Poker is taking that familiar Sunday grind to another level.

The second Sunday of OSS XL features $4,065,500 in published guarantees, with buy-ins stretching from micro-stakes entries to $2,650 high-stakes tournaments.

The headline schedule includes the first flight of the $500K GTD Main Event, a $600K GTD major, another $500K GTD high-stakes event, a $300K GTD PKO and the return of Mini Phil’s Thrill with $250K guaranteed.

And there is plenty more further down the buy-in ladder.

$500K OSS XL Main Event Gets Underway

One of Sunday’s most important tournaments is also surprisingly affordable.

The $66 OSS XL Main Event begins with Day 1A on September 13, putting a $500,000 guarantee within reach of players well below the traditional high-stakes level.

A second starting flight follows on September 20, before surviving players return for Day 2 on September 27.

The $66 direct buy-in is already relatively low for a half-million-dollar Main Event, but ACR Poker is opening the door even further with $6.60 satellites.

That creates a route from a single-digit qualifier into one of the central tournaments of the entire OSS XL schedule.

$600K Guarantee Tops the Sunday

The biggest single-event guarantee on the published Sunday slate belongs to a $630 tournament with $600,000 GTD.

High-stakes grinders also have a $1,050 event with $500,000 guaranteed, giving the upper end of the schedule two major targets.

Another $630 tournament carries $250K GTD, while players at the $215 level can compete for another $250K guarantee.

Bounty players are well covered too. A $2,650 Progressive Knockout comes with $300,000 guaranteed, adding a major PKO to an already stacked high-stakes lineup.

That variety is important. September 13 is not simply a collection of standard Hold’em tournaments, with bounty formats and other variants running alongside the traditional events.

Mini Phil’s Thrill Returns With $250K GTD

Another major attraction is Mini Phil’s Thrill.

The $2,650 NLHE event returns on September 13 with $250,000 guaranteed, continuing to provide a lower-priced alternative to ACR Poker’s original $10,300 Phil’s Thrill.

The tournament already produced an interesting storyline on the opening OSS XL Sunday.

ACR Poker CEO Phil Nagy, playing under the screen name Justsomefish72, reached the Mini Phil’s Thrill final table while also finishing runner-up in the $10,300 Phil’s Thrill on the same day.

September 13 gives Nagy and the rest of ACR Poker’s high-stakes crowd another chance to battle for one of the room’s newer weekly titles.

Low Stakes Meet Big Guarantees

Perhaps the strongest feature of the September 13 schedule is the sheer range of buy-ins.

Players do not need hundreds or thousands of dollars to find substantial guarantees. The $27.50 Sunday Smash offers $100,000 GTD, while an $88 PKO puts $150,000 guaranteed on the table.

Across the day, OSS XL also features Mystery Bounties, PKOs, standard tournaments and Omaha variants.

Buy-ins include $1.65, $2.20, $5.50, $6.60, $8.80, $11 and $16.50. That means the same Sunday offering $2,650 high rollers also provides plenty of options for micro- and low-stakes grinders.

That accessibility is a major part of OSS XL. The festival features more than $50 million in overall guarantees, but a large bankroll is far from essential to take part.

Anniversary Adds More Action

The OSS XL schedule is not the only major tournament action running on September 13.

ACR Poker’s 25th Anniversary Tournament also has another regular Day 1 flight scheduled for Sunday.

The event features a $250 buy-in and $2.5 million guarantee, but its structure is what really makes it stand out.

Instead of carrying only a player’s best qualifying stack forward, the Anniversary Tournament uses a cumulative-stack format.

Qualify once and those chips move forward. Qualify again in another flight and the second stack is added to the first.

As a result, players who have already secured a Day 2 seat can continue firing additional flights and potentially arrive at the next stage with a significantly larger stack.

The tournament now features 41 Day 1 flights, making it another major part of ACR Poker’s September schedule.

A $4.06M Monster Sunday at ACR Poker

Across the published OSS XL schedule alone, September 13 features $4,065,500 in guarantees.

But the real strength of the day is not one single headline tournament.

Players can enter a $500K Main Event for $66, chase six-figure guarantees at modest stakes, move up to $630 and $1,050 majors, play a $2,650 PKO or compete in Mini Phil’s Thrill.

At the same time, Hold’em, Omaha, PKOs and Mystery Bounties give grinders several different formats to choose from.

OSS XL continues through September 29, with several of its biggest Main Events and finals still to come. But for players looking for one especially busy day to hit the virtual felt, September 13 stands out as a monster Sunday at ACR Poker.

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ACR OSS XL Sunday Quick Facts

• 💰 Total GTD: $4,065,500 on September 13
• 📅 Date: Sunday, September 13, 2026
• 🔥 Series: OSS XL
• 💵 Series GTD: $50M+
• 🎟️ Buy-Ins: From $1.65 to $2,650
• 👑 $66 Main Event: $500K GTD, Day 1A starts September 13
• 🎫 Main Event Satellites: From $6.60
• 🏆 $630 Major: $600K GTD
• 💎 $1,050 Major: $500K GTD
• 🚀 $630 Event: $250K GTD
• 🎯 $215 Event: $250K GTD
• 💥 $2,650 PKO: $300K GTD
• 🔥 Mini Phil’s Thrill: $2,650 buy-in, $250K GTD
• 💸 Sunday Smash: $27.50 buy-in, $100K GTD
• 🎯 $88 PKO: $150K GTD
• 🃏 Formats: NLHE, PLO, PKO and Mystery Bounty
• 🎉 25th Anniversary Event: $250 buy-in, $2.5M GTD also running
• 📈 Anniversary Format: Cumulative qualifying stacks
• ✈️ Anniversary Flights: 41 Day 1s
• 🗓️ OSS XL Ends: September 29