In 299 days · Sat, May 22, 2027
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Saturday, May 22nd, 2027
Byron Motosports Park, Byron IL
10K · 5K · 1 Mile
54–73°F · some rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2026
49–68°F
dry
2025
46–58°F
dry
2024
56–70°F
dry
2023
50–79°F
dry
2022
46–61°F
dry
2021
64–81°F
dry
2020
53–70°F
dry
2019
50–79°F
rain
2018
57–70°F
dry
2017
45–68°F
rain
Best months to race in Illinois →
About this race
Race Overview
Frontline OCR is more than a race. It's a tribute. The Frontline OCR Foundation is a 501(c)(3) non-profit organization. This event was created to honor the grit and sacrifice of military personnel, veterans, and first responders by putting participants through an obstacle course that mirrors the physical and mental battles faced in the line of duty.
Obstacles and Challenge
Every obstacle is purpose-built to challenge your limits and reflects the toughness required on the real frontline.
- Purpose-built Obstacles: No shortcuts.
- Course Structure: No scheduled breaks.
- Personal Challenge: Just you, the course, and the chance to prove what you’re made of.
Race Significance
This is not your average race. It's a test of courage, resilience, and readiness.
Event Details
- Date: May 22, 2027
- Location: Byron Motorsports Park, Byron, IL
- Registration: Join here.
- Call to Action: Prove you belong. Earn your badge.
Join Us
Join us on the Frontline, or sit on the sideline.
Course map
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