6745 S. Santa Fe Dr., Littleton CO
Sunday, April 12th, 2026
Welcome to the Platte River Half Marathon &: Relay race, one of the most exciting and popular races in the Denver Metro Area! This race is held annually in Littleton, CO. We’re thrilled to announce that registration for our upcoming 2026 event on Sunday, April 12th is open for the half-marathon and relay race. The race starts and finishes next to the beautiful Platte River Trail and adjacent to the popular Breckenridge Brewery campus. Join us for an epic post-race party at the Brewery with food, vendors, live music, and of course beer!
What’s more, we donate a portion of the proceeds to the Leukemia &: Lymphoma Society. Thank you for your support, and we can’t wait to see you at the finish line!
Visit our race website here.
Entry fees are non-refundable and non-transferable. There are no deferrals to future years.
The race will take place at 6745 S. Santa Fe Dr., Littleton, CO.
For additional details, please visit the race page here.
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