Sat, Jul 31, 2027

Heatwave Half Marathon/5K/10K - St. Louis

St. Louis, MO

Registration openAnnual since at least 2026

50m1 Mile5K10KHalf Marathon

Heatwave Half Marathon/5K/10K - St. Louis 2026 Results

Going by the 2026 results, this is a small, friendly field, and the field is fairly quick, so expect a competitive front.

Half Marathon Results · 2026

129finishers

1:29:17winner

2:12:49median

3:22:30cutoff

Top 3: MacKenna Kerpan (1:29:17) · Lincoln Lyons (1:30:22) · Ben Cornell (1:33:04)

5K Results · 2026

103finishers

18:26winner

36:13median

1:06:16cutoff

Top 3: Laney Alig (18:26) · J. Lange (20:34) · Dave Lange (20:49)

10K Results · 2026

91finishers

35:46winner

59:50median

2:39:47cutoff

Top 3: Tanner Coleman (35:46) · Dan Herzmann (39:47) · Lucas Batson (41:51)

The Heatwave Half Marathon/5K/10K - St. Louis has been held every year since at least 2026. That is as far back as RunSignup's records for this race go, so it may well be older.

Where Would You Finish?

Enter a finish time to see where it lands against the most recent 13.1 Miles results.

Median

See how your time stacks up nationally →

How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Oct 25, 2026.

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Distances & Start Times

50m7/31/2027 07:00$17

1 Mile7/31/2027 07:00$22

5K7/31/2027 07:00$32

10K7/31/2027 07:00$32

13.1 Miles7/31/2027 07:00$50

Virtual Race7/31/2027 07:00$42

Volunteer Then Run7/31/2027 07:00$17

13.1 Miles7/31/2027 07:00Free

Going for a Time?

Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.

Not sure what to aim for? The 5K pace chart lists the pace for every finish time.

Plan Your Trip

Where to Stay

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Common Questions About the Heatwave Half Marathon/5K/10K - St. Louis

Will I finish last at the Heatwave Half Marathon/5K/10K - St. Louis?

Almost certainly not. Half the 13.1 Miles field finished slower than 2:12:49, and the last recorded finisher came in around 3:22:30, so there is a long tail of runners behind the middle of the pack. Most fields are far slower than people expect.

Is the Heatwave Half Marathon/5K/10K - St. Louis a good first 13.1 Miles?

It is a small race (129 finishers), which is friendlier and less intimidating than a big-city event, though the field thins out. There is no qualifying time, and the finish-time spread above shows how varied the field really is. If it is your first 13.1 Miles, that spread matters more than the winner's time.

How competitive is the Heatwave Half Marathon/5K/10K - St. Louis?

The 13.1 Miles winner ran 1:29:17 while the median finisher took 2:12:49. That spread points to a relatively quick field, so expect a competitive front end.

Where can I train for the Heatwave Half Marathon/5K/10K - St. Louis?

Join a local run club. Achilles St. Louis, Big Hump Hash House Harriers, Big River Racing and others in St. Louis welcome runners of all paces, and a weekly group run is the most reliable way to hold a training block together.

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