Heatwave Half Marathon - Denver | Denver, CO, United States

About the Event

Join us for the Heatwave Half Marathon, 10K, & 5K!
A sun-soaked summer challenge that’s perfect for the whole family.

The fun includes –

Great Swag – designer shirt & custom medal
Chip-timing with live results and awards
Free photos
FREE ice cream at the finish to help you cool off
Plenty of hot fun in the summer sun!

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!

Races Offered

1 Mile

Jul 11, 2026

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Distance — 1 Miles

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Type — Running

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07:00

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$22.00

10 K

Jul 11, 2026

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Distance — 10K

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Type — Running

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07:00

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$32.00

5 K

Jul 11, 2026

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Distance — 5K

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Type — Running

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07:00

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$32.00

Half-Marathon

Jul 11, 2026

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Distance — 13.1 Miles

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Type — Running

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07:00

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$55.00

Half-Marathon Relay

Jul 11, 2026

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Distance — 13.1 Miles

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Type — Running

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07:00

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$55.00

Kids Dash

Jul 11, 2026

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Distance — 50m

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Type — Running

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07:00

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$17.00

Virtual Race

Jul 11, 2026

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Distance — Virtual Race

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Type — Running

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07:00

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$42.00

Volunteer Then Run

Jul 11, 2026

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Distance — Volunteer Then Run

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Type — Running

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07:00

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$17.00

Weather History

These values represent the 3-year monthly averages for July in Denver.

thermostat Temperature

15.3° / 32.0°

wb_sunny Feels like

14.0° / 29.4°

light_mode Avg sunshine hours

12h 57m

water_drop Avg rainfall

1.0 mm

ac_unit Avg snowfall

—

air Avg wind speed

7.6 km/h (Light breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Hard and dry surface

sunny Max UV Index

Very High (8.0)

humidity_mid Humidity

43.7%

wb_twilight Sunrise

05:45

nightlight Sunset

20:24

About Denver

Learn more about the host city, Denver.

Denver is the capital of the western U.S. state of Colorado and the dominant city of the Rocky Mountain Region. Founded in 1858 as the placer gold mining camp known as the Cherry Creek Diggings, the "Mile-High City" is today the most populous city within a 560-mile (900 km) radius and the center of the Front Range Urban Corridor of more than five million residents. Denver embraces its cowboy and mining past but also looks toward the future with a vibrant arts and performing arts scene, dozens of great outdoor festivals, and distinct neighborhoods each offering a unique experience. You'll find everything a cosmopolitan city has to offer including a spectacular view of and easy access to the beautiful Rocky Mountains, which arise only 12 miles (19 km) west of the Colorado State Capitol.