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Illinois Open Series

Disc Golf Tournaments. Over 19,000 served.

  • 2025 Events
    • IOS #130 Northwood Open
    • IOS #131 Forest City Frenzy presented by Discraft
    • IOS #132 9th Annual Forsyth Open
    • IOS #133 Sinnissippi Open in cooperation with Rock River Disc Golf
    • IOS #134 Case Jackson Memorial presented by Discontinuum
    • IOS #135 Oswego Open
    • IOS #136 Illiana Open
  • Details
  • FAQ
  • History
    • 2024 Events
      • IOS #123 Northwood Open
      • IOS #124 Forest City Frenzy presented by Discraft
      • IOS #125 8th Annual Forsyth Open
      • IOS #126 Sinnissippi Open in cooperation with Rock River Disc Golf
      • IOS #127 Case Jackson Memorial presented by Discontinuum
      • IOS #128 Oswego Open
      • IOS #129 Illiana Open
      • Series Points
      • Club Challenge Information
    • 2023 Events
      • IOS #116 Northwood Open
      • IOS #117 Forest City Frenzy presented by Discraft
      • IOS #118 Sinnissippi Open in cooperation with Rock River Disc Golf
      • IOS #119 Case Jackson Memorial presented by Discontinuum
      • IOS #120 Oswego Open presented by Fox Valley Metro
      • IOS #121 Kennel Lake Open
      • IOS #122 Illiana Open
      • 2023 Series Points
      • 2023 Club Challenge Information
    • 2022 Events
      • IOS #111 Northwood Open
      • IOS #100 Forest City Frenzy presented by Discraft
      • IOS #112 Sinnissippi Open
      • IOS #113 Case Jackson Memorial presented by Discontinuum
      • IOS #114 Oswego Open
      • IOS #115 Illiana Open
      • 2022 Series Points
    • 2021 Events
      • IOS #105 Eureka Open
      • IOS #106 Sinnissippi Open Presented by Food Fitness You
      • IOS #107 Northwood Open
      • IOS #108 Case Jackson Memorial presented by Discontinuum
      • IOS #109 Oswego Open
      • IOS #110 Illiana Open
      • 2021 Registration Schedule
      • 2021 Covid Plan
      • 2021 Series Points
    • 2020 Events
      • 2020 Series Points
      • IOS #100 Forest City Frenzy – Postponed until 2021
      • IOS #101 – Sinnissippi Open Presented by Food Fitness You
      • IOS #102 Case Jackson Memorial presented by Discontinuum
      • IOS #103 – Oswego Open
      • IOS #104 Illiana Open
    • 2019 Events
      • 2019 Series Points
      • IOS #96 Squaw Creek Showdown Presented by Discontinuum
      • IOS #97 – Sinnissippi Open
      • IOS #98 – Oswego Open
      • IOS #99 – Forest City Frenzy
    • 2018 Events
      • 2018 Series Points
      • IOS #89 Mayhem at Mokena
      • IOS #90 Oswego Open
      • IOS #91 Sinnissippi Open Presented by Air Play Sports
      • IOS #92 Squaw Creek Showdown Presented by Discontinuum
      • IOS #93 The Highlander
      • IOS #94 Indian Oaks Open
      • IOS #95 Forest City Frenzy
    • 2017 Events
      • 2017 Series Points
      • IOS #82 Dave Pitner Memorial
      • IOS #83 Oswego Open
      • IOS #84 Sinnissippi Open Presented by Air Play Sports
      • IOS #85 Squaw Creek Showdown Presented by Discontinuum
      • IOS #86 Throwdown at Rolling Knolls
      • IOS #87 Indian Oaks Open
      • IOS #88 Forest City Frenzy
    • 2016 Events
      • 2016 Series Points
      • IOS #75 – Dave Pitner Memorial
      • IOS #76 – Oswego Open
      • IOS #77 – Sinnissippi Open
      • IOS #78 – Forest City Frenzy
      • IOS #79 – Squaw Creek Showdown Presented by Discontinuum
      • IOS #80 – Indian Oaks Open
      • IOS #81 – Echo from the Canyons
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