Heritage Eagles 5K

Welcome to the Platte River Half Marathon, Relay & 5k 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!

Whether you’re an experienced runner looking to set a new PR, a newcomer looking to tackle your first half-marathon, or a team of runners wanting to run an exciting relay race, join us for a day of adrenaline-pumping running, scenic views, and all-around fun. What’s more, we donate a portion of the proceeds to Salute Colorado. Thank you for your support, and we can’t wait to see you at the finish line!

Questions? Visit our race website here.

Entry fees are non-refundable and non-transferable. There are no deferrals to future years.

A local favorite! Runners of all ages and abilities are invited to participate in the 45th Annual High Line Canal Run along the scenic High Line Canal. This race is chip timed and registration includes a post-race pancake breakfast from Flippin’ Flapjacks and a beer garden from Breckenridge brewery as well as professional race photos and awards in 5-year increments.

10K begins at 7:30 AM & 5K begins at 9:00 AM

Join the festivities at our HRCA Mother’s Day 5K at Cresthill Middle School in Highlands Ranch on Saturday, May 9, 2026, starting at 9:00 a.m.! Celebrate the moms in your life with a family-friendly morning of fresh air, fun, and community spirit. This welcoming course is perfect for everyone—first-time runners, seasoned athletes, kids, and parents with strollers. Bring your loved ones, lace up your shoes, and enjoy a meaningful start to your Mother’s Day weekend!

Keep your eyes peeled — a kettlebell will be hidden along the course! 💐 Be the first to find it and return it to the finish line, and you’ll win $100!

All participants will receive the following:

• Race t-shirt

• Custom giveaway

• Custom race bib

• Pancake breakfast from Flippin' Flapjacks

We are so thrilled to announce the return of our annual Gluten Free Gallop 5K for its 13th year!

Join Denver Celiacs to raise awareness of celiac disease and all gluten-related disorders. Our 13th Annual Gluten Free Gallop 5K will take place at Clement Park in Littleton, CO, on Saturday, May 16, 2026, from 9:00 AM-12:00 PM. This year we will also be offering our very popular ROCK Fun Run again! This is a fun, family, stroller, and dog friendly event. This event will include food trucks, lots of samples, freebies, and kids activities!

The 5k will be two laps around Johnson Reservoir at the Robert Clement Park in Littleton, CO. The race will begin at 9 AM sharp near shelters J, K, and L. Look for the large entrance arch and Denver Celiacs' white tent. Race registration will also be near shelters J, K, and L, and will open at 8:30 AM.

Get your shoes, water, and sunglasses ready! The course offers scenic foothills views and a great atmosphere to relax and connect after the run!