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Summer half marathons near St. Louis (2027)
Updated
4 half marathons are on the calendar near St. Louis in summer 2027, starting with The "Rockin' Riverfest" 5k, 10K, Half Marathon & Fun Run! on Saturday, July 3 in St Charles. That covers June to August. 4 of them publish an upcoming price increase, so signing up early saves money.
All summer races5K races (8)10K races (6)Half marathons (4)
By date
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Sat Jul 3 · 7:30 AM · St Charles · St. Charles County
5K10KHalf marathonTrail
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Sat Jul 31 · 7:00 AM · St. Louis · St. Louis & Inner Suburbs
1 mile5K10KHalf marathon
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Sat Aug 7 · 7:00 AM · Maryland Heights · West County & Chesterfield
1 mile5K10KHalf marathon
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Sat Aug 14 · 7:00 AM · Saint Louis · St. Louis & Inner Suburbs
1 mile5K10KHalf marathon
Other seasons near St. Louis
Quick answers
How many half marathons are near St. Louis in summer 2027?
4 half marathons are listed near St. Louis in summer 2027. The first is The "Rockin' Riverfest" 5k, 10K, Half Marathon & Fun Run! on Saturday, July 3 in St Charles, and the last is Swifty Fun Run - 1 Mile | 5K | 10K | Half Marathon on August 14.
What is the cheapest half marathon near St. Louis in summer 2027?
Drink MO Beer 1 Mile| 5k | 10k | Half Marathon on August 7 has the lowest listed entry fee: $20. Prices are before the registration platform's processing fee.
When does the next early-bird price end for half marathons near St. Louis?
Heatwave Half Marathon/5K/10K - St. Louis: the Half marathon goes from $50 to $56 after February 2. 3 more of these half marathons publish a later price increase.
Are there half marathons or marathons near St. Louis in summer 2027?
Yes: 4 half marathons and 0 marathons. The first is The "Rockin' Riverfest" 5k, 10K, Half Marathon & Fun Run! on July 3.