Illinois Open Series

Established 2003

illinoisopenseries.com

Home courses (5)

Lemon Lake County Park Crown Point, IN Eagle Ridge / Civic Center Oswego, IL Anna Page Park Rockford, IL Fairfield Park Round Lake, IL Sinnissippi Park Sterling, IL

Tournaments

May 2-3 Sat-Sun
IOS #137 Forest City Frenzy presented by Discraft PDGA A-tier · Sat-Sun, May 2-3, 2026 Anna Page ParkRockford, IL 58 / 2884
A-tier
May 23 Sat
IOS #138 Case Jackson Memorial (MPO/MA2/MA4/FA2/FA4/MA40) Presented by Discontinuum and Play It Again Sports Mundelein PDGA B-tier · Sat, May 23, 2026 Fairfield ParkRound Lake, IL 2 Wed, Mar 4 at 7:00pm CST
B-tier
May 24 Sun
IOS #138 Case Jackson Memorial (All Others) Presented by Discontinuum and Play It Again Sports Mundelein PDGA B-tier · Sun, May 24, 2026 Fairfield ParkRound Lake, IL 2 Wed, Mar 4 at 7:00pm CST
B-tier
Jun 13 Sat
IOS #139 Sinnissippi Open in cooperation with Rock River Disc Golf (MPO/MA2/MA4/FA2/FA4/MA40) PDGA B-tier · Sat, Jun 13, 2026 Sinnissippi ParkSterling, IL 2 Wed, Mar 4 at 7:00pm CST
B-tier
Jun 14 Sun
IOS #139 Sinnissippi Open in cooperation with Rock River Disc Golf (All Others) PDGA B-tier · Sun, Jun 14, 2026 Sinnissippi ParkSterling, IL 2 Wed, Mar 4 at 7:00pm CST
B-tier
Jul 10-12 Fri-Sun
IOS #140 Forsyth Open presented by Discraft PDGA A-tier · Fri-Sun, Jul 10-12, 2026 Forsyth DGCForsyth, IL 3 Sun, Mar 1 at 6:00pm CST
A-tier
More tournaments ›

Leagues

No current leagues listed.

About

Staff Contact ›

Scott Pitner Tournament Director Emeritus
Mike Krupicka Tour Director
Nate Heinold Tournament & Merchandise Director