Lace up your running shoes and join us for an inaugural and unforgettable autumn adventure through the scenic trails of Orion Oaks County Park! The Rooted Half Marathon & 5k offers an experience for every skill level, from seasoned trail runners to first-time 5k participants to someone out for a supported hike. Enjoy the stunning fall backdrop as you are immersed in the natural surroundings so lush you would think you are in a northern Michigan forest and not an urban area! The course features well-maintained, multi-use trails that wind through wooded and grassy areas, offering a mix of flat to gently rolling terrain suitable for all abilities.
Whether you're pushing for a personal best or enjoying a leisurely hike, you'll find the perfect challenge. And you don't have to go it alone—5K runners can sign up for the Doggie Division and bring your leashed dog to share in the fun!
After you cross the finish line, celebrate your accomplishment with a truly great finisher award that will serve as a memento of your epic fall run.
Have more fun and share the experience with family and friends! During registration you will be given the opportunity to join or create a PACK which is a social group. PACKS can span across any race distance, onsite or virtual.
7:30 AM onsite registration and packet pick-up
9:00 AM Half Marathon start
9:15 AM 5K start
9:20 AM 5K Doggie Division start
Please note: This is a dog park with dog pens. The race start and finish area will be inside one of the dog pens that opens onto the park trail system. Dogs MUST be leashed at all times while in the event staging area. There will be a couple of pens at the park which will be open to off leash dogs. Dogs must also stay on leash while on the trails. The only place during the event where your dog can be off leash are the OPEN dog pens. For the safety of all participants and dogs please adhere to this directive.
Choose from a cozy crewneck sweatshirt or trucker hat. Or get crazy and snag both items!
Register for the The Rooted Virtual Half Marathon or the 5K Run/Walk and get all the same swag! Choose your own route and time to run! Packet mailing is included in entry fee.
Sep 27, 2026
Distance — 13.1 Miles
Type — Running
09:00
$65.00
Sep 27, 2026
Distance — 3.1 Miles
Type — Running
09:15
$45.00
Sep 27, 2026
Distance — 3.1 Miles
Type — Running
09:20
$50.00
Sep 27, 2026
Distance — 3.1 Miles
Type — Running
09:20
$55.00
Sep 27, 2026
Distance — 13.1 Miles
Type — Running
09:20
$75.00
These values represent the 3-year monthly averages for September in Lake Orion.
Lake Orion is a village in the northern outskirts of Metro Detroit in Oakland County, Michigan, United States. The population was 2,973 at the 2010 census. "Lake Orion" can refer to either the village or the much larger Orion Township, of which the village is a part.
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