The Illinois Open Series is a series of disc golf tournaments in Northern Illinois that has been running for over 10 years. It originated with players who sought to run tournaments that they would want to play in.

Last year, we had over 500 distinct players participate in at least one event. Many compete for series trophies by playing multiple events over the year. Whether you compete at just one event near your home course or follow the series around Northern Illinois, you can expect a fun day of disc golf at a professionally organized event. Every event is sanctioned by the Professional Disc Golf Association (PDGA).

What to expect at an IOS

Tournament Details

2018 Events & Registration