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From March 16th to 31st, 2025 on the network WPN runs the OSS — classical Online Super Series with the guarantee of $25,000,000 + $35,000 leadrboards.

Details of OSS 2025

• Three tiers of events depending on buy-ins: small (S), medium (M) and high (H)
• Two Main Events with $1,500,000 and $1,000,000 guarantees
• Three Mystery Bounty events with guarantees up to $750,000
• $35,000 Leaderboards

Key Events of OSS 2025

Two of the Online Super Series Main Events have a two-day structure: their Day 1’s start on March 23rd and 30 while Day 2 takes place on March 31st:

• Buy-in $1,050 — guarantee of $1,500,000
• Buy-in $215 — guarantee of $750,000

The third Main Event is multiflight with the $630 buy-in and the $1,000,000 guarantee. Its flights start on March 9th, Day 2 on March 31st.

Finally, OSS has three Mystery Bounty multiflight events. Their flights start on March 9th but Day 2 start on different days:

• Buy-in $5.50 — guarantee of $100,000: March 30th
• Buy-in $33 — guarantee of $250,000: March 30th
• Buy-in $109 — guarantee of $750,000: March 31th

OSS 2025 $35,000 Leaderboards

The Online Super Series has leaderboard with a $35,000 prizepool. To calculate amount of points from each series’ tournament, PokerKing uses formula:

Square Root (prize pool) / Square Root (finishing place in ITM)

There are two variants of the OSS leaderboard for different buy-ins: High and Low.