Frontline OCR
- Date
- May 22, 2027
- Location
- Byron Motosports Park, Byron, IL
- Distance
- Special Forces -10K Elite · Endurance · Heroes 1 - Competitive 10K & more
From the Organizer
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.
Every obstacle is purpose-built to challenge your limits and reflects the toughness required on the real frontline. There are no shortcuts. No scheduled breaks. Just you, the course, and the chance to prove what you're made of.
This is not your average race. It's a test of courage, resilience, and readiness.
Prove you belong. Earn your badge on May 23rd, 2026.
Join us on the Frontline, or sit on the sideline.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
73°
Typical Low
52°
Chance of Rain
41%
Based on US Climate Normals data from Rockford Gtr Rockford Ap, 10 mi from the venue.
Host City
About Byron, IL
Population
3,742
as of 2023
Elevation
725 ft
Nearest Airport
RFD
Chicago Rockford International Airport · 10 mi
Major Hub
ORD
Chicago O'Hare International Airport · 71 mi
Time Zone
Central Time
From Endurance Grid
A small town race. Lodging near the start could be limited, so book early.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Frontline OCR, put it on the calendar, and turn “someday” into a start date.
Coming Up
More Running races near Byron, IL
Lifescape 4th of July Classic Run/Walk
14 miles away
Byron Fest 5K & 1 Mile Fun Run
5K
Less than a mile away
Mullarkey's Bar and Grill Spirits Run
10 miles away
2026 MAD TUNA TOURNAMENT
14 miles away
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Frontline OCR?
- Frontline OCR is a running race held in Byron, Illinois on May 22, 2027. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Frontline OCR?
- Saturday, May 22, 2027 in Byron, Illinois at Byron Motosports Park, Byron, IL. Check the event page for exact start times and wave schedules.
- How do I register for the Frontline OCR?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Frontline OCR
May 22, 2027