In 319 days · Sat, Jul 31, 2027
Don't let race day sneak up
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Saturday, July 31st, 2027
TBD, St. Louis MO
1 Mile · 5K · 10K · Half
70–87°F · some rain risk
See last 10 years
On this date: rain 6 of the last 10 years
2026
70–81°F
rain
2025
72–81°F
rain
2024
76–91°F
rain
2023
70–86°F
dry
2022
69–85°F
dry
2021
70–83°F
rain
2020
68–74°F
rain
2019
67–84°F
dry
2018
66–77°F
rain
2017
63–86°F
dry
Best months to race in Missouri →
About this race
Overview
Join us for the Heatwave Half Marathon, 10K, & 5K! A sun-soaked summer challenge that’s perfect for the whole family.
Event Highlights
- Great Swag: designer shirt & custom medal
- Chip-timing: with live results and awards
- Free Photos: capture your race moments
- Free Ice Cream: at the finish to help you cool off
Plenty of hot fun in the summer sun!
Get Involved
Grab your friends and family—you won’t want to miss this one!
Virtual Race Option
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 Pricing
Youth-based pricing is available: ages 12 & under are only $17!
Registration Details
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!)
Important Registration Info
Register by midnight on Thursday, two Thursdays before race day, to guarantee your shirt!
Event Information
Date: 2027-07-31
Location: TBD, St. Louis, MO
Course map
Hotels for race weekend
Live prices near the start line, Jul 30 – Aug 1, 2027.
Train with a club
Run clubs near St. Louis to train with before race day.
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