
Heatwave Half Marathon/5K/10K - Denver is a running race on July 17, 2027 in Denver, CO, with entry fees from $17 to $85.
From the Organizer
Join us for the Heatwave Half Marathon, 10K, & 5K!
A sun-soaked summer challenge that’s perfect for the whole family.
The fun includes –
Grab your friends and family—you won’t want to miss this one!
Can’t make the race? No problem! We offer a virtual race option where you can run anywhere, at any time, and still earn the fun swag!
Youth-based pricing is available: ages 12 & under are only $17!
Half Marathon/10K/5K registration includes a custom bib, designer shirt, and an awesome finisher medal!
1 Mile registration is untimed and includes a custom bib, designer shirt, and an awesome finisher medal!
Kid’s Dash is a fun, untimed dash for ages 10 and under. Registration includes a mini bib, youth-sized shirt, and a specially crafted medal for our youngest runners! (If your child wants to run the kid’s dash without swag, they’re welcome to run free on race day!)
Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!
Weather
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
87°
Typical Low
60°
Chance of Rain
27%
Based on US Climate Normals data from Marston Fltr Plt, 3 mi from the venue.
Host City
Population
713,734
as of 2023
City Elevation
5,286 ft
Nearest Airport
DEN
Denver International Airport · 18 mi
Time Zone
Mountain Time
From Endurance Grid
A big city race. Expect multiple lodging options and plenty to do the day before.
Race Location
Your Next Start Line
Every finish line starts with a single decision. Claim your spot at Heatwave Half Marathon/5K/10K - Denver, put it on the calendar, and turn “someday” into a start date.
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From Endurance Grid
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.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
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Heatwave Half Marathon/5K/10K - Denver
Jul 17, 2027