Frontline OCR

Open now

Date: May 22, 2027
Sport: Obstacle course
Location: Byron, IL
Distances: 1.6K · 5K · 10K · 10K
Entry: $39 – $550
Registration opens: May 23, 2026
Registration closes: May 23, 2027

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Listing from runsignup. Always confirm details with the organiser.