Online Super Series XL Brings $50 Million Guaranteed to the Winning Poker Network

From March 1 to 23, 2026, the Online Super Series XL (OSS XL) returns to the Winning Poker Network (WPN) with more than $50,000,000 in guaranteed prize pools across a massive multi-week schedule.

The series runs network-wide, meaning players can access the full OSS XL lineup through WPN skins — including PokerKing, our partner room on the network.

OSS XL is built around volume and accessibility. The schedule includes 700+ tournaments, with buy-ins ranging from just $0.55 all the way up to $10,300.

While high rollers have multiple six- and seven-figure targets, the core of the schedule sits in the $16.50 to $109 range — the traditional mid-stakes MTT grind zone.

Single-day guarantees range from a few hundred dollars to major headline events, with most tournaments offering $10,000–$100,000 prize pools. Five events come with seven-figure guarantees, anchoring the series at the top end.

The series opens with one of its largest individual tournaments:

• OSS XL #1 “Phil’s Thrill”
  $10,300 buy-in | $1,500,000 guaranteed
  Satellites begin at $95, providing a more accessible route into the flagship opener.

The Main Event structure includes multiple tiers:

• OSS #2 — $2,000,000 GTD | $2,650 buy-in
• OSS #3 — $2,000,000 GTD | $1,050 buy-in
• OSS #4 — $1,000,000 GTD | $215 buy-in

Each features two Day 1 flights before advancing to Day 2 and the final table stage.

Day 1 structure overview:

• 300K–350K starting stacks (roughly 188–219 BB)
• 15-minute blind levels
• 8 hours of late registration
• Unlimited re-entries during registration

Day 2 resumes on March 23, with final tables played the following day.

Beyond the Main Events, the schedule includes several major multiflight tournaments:

• OSS XL #5 MB — $500,000 GTD ($109)
• OSS XL #6 MB — $500,000 GTD ($109)
• OSS XL #8 — $1,500,000 GTD ($630)
• OSS XL #9 MB — $150,000 GTD ($33)
• OSS XL #10 MB — $100,000 GTD ($5.50)

These events provide multiple entry days, giving players additional flexibility to build stacks.

Every Wednesday and Sunday, OSS XL features dedicated Omaha tournaments, including multiple PLO variants.

Buy-ins range from $1.10 to $630, with guarantees reaching $50,000. All PLO events use a reshuffled structure compared to standard NLHE formats, giving Omaha grinders a distinct competitive dynamic.

Volume players can compete across three OSS XL leaderboards with a combined $65,000 prize pool, split into:

• Low (up to $15 buy-ins)
• Medium ($16.50–$88)
• High ($104.50+)

Points are calculated using the formula:

√(prize pool) ÷ √(finishing place)

Top performers receive a mix of cash and tournament tickets.

All OSS XL tournaments are accessible through the WPN step-satellite system, beginning with freerolls and progressing upward.

Major events also feature boosted qualifiers with increased ticket guarantees.

Since OSS XL runs on the Winning Poker Network, players can access the full schedule via PokerKing, our WPN partner room.

If you're looking to grind a broad mid-stakes schedule, chase leaderboard equity, or take a shot at seven-figure guarantees, OSS XL delivers one of the largest online tournament series of the spring calendar.