Heatwave Half Marathon - St. Louis
The Heatwave Half Marathon offers a classic summer road race experience in St. Louis.
Race Date
Aug 1, 2026
Location
St. Louis, MO
Quick facts
- Date
- Saturday, August 1, 2026
- Location
- St. Louis, Missouri
- Distance
- Half marathon (13.1 mi) + 50m, 1 Miles, 5K, 10K, 13.1 Miles, Volunteer Then Run, Virtual Race
- Course
- Loop Course
- Terrain
- Road
- USATF certified
- Not listed
Highlights
Good For
Atmosphere
Course
The Experience
The Heatwave Half Marathon, 10K, and 5K present a classic summer road race challenge in St. Louis. This event is designed for runners seeking a straightforward, timed race with solid amenities, including a designer shirt and custom medal for all half marathon, 10K, and 5K finishers. The course is a loop, predominantly flat, making it a good candidate for those looking to test their speed.
The race aims to provide a fun, family-friendly atmosphere under the summer sun. Post-race, participants can cool down with free ice cream, a welcome perk given the typical warm weather conditions. For those unable to attend in person, a virtual race option allows runners to participate from anywhere and still receive the event's signature swag.
Race-provided description
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 medalChip-timing with live results and awardsFree photosFREE ice cream at the finish to help you cool offPlenty 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!
Logistics
Race Day
Saturday, August 1, 2026
Start Time
7:00 AM
Giveaway
Tank Top
Start Location
Grant Trail, St. Louis, MO, 63123
Course Info
Course Type
Loop Course
Terrain
road
Scenery
Urban
Surface
Paved
Difficulty
Ultra-Flat
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Course Map
Quality Score
first year
no finisher counts yet
small race — neutral
needs a few years of results
3 timing sources · 7 photos
no finisher data yet
no winner time yet
typical high 87°F
Race Day Weather
5-year historical avgStart (Low)
71°
Afternoon (High)
87°
Hot conditions — adjust pace expectations, prioritize hydration
0.2"
Precipitation
9 mph
Wind
74%
Humidity
Race Photos
Frequently asked
When is the Heatwave Half Marathon - St. Louis?
The Heatwave Half Marathon - St. Louis is held on Saturday, August 1, 2026, starting at 7:00 AM.
Where does the Heatwave Half Marathon - St. Louis take place?
It takes place in St. Louis, Missouri.
What distances does the Heatwave Half Marathon - St. Louis offer?
The half marathon (13.1 miles), plus 50m, 1 Miles, 5K, 10K, 13.1 Miles, Volunteer Then Run, Virtual Race.
Is the Heatwave Half Marathon - St. Louis course flat and good for a PR?
The Heatwave Half Marathon - St. Louis is a ultra-flat, loop course course.
HalfRuns editorial — independent, no paid placement.
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