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Triathlon Calendar near Millstadt 2025-2026

Explore the top triathlons near Millstadt for 2025-2026! We've gathered 35 exciting races in the area. Check out our detailed list below to find your next local race.

July 2025
Jul
19
Saturday

Get Your Butt Kicked @ Route 66

Trail Run 2 mi
Jul
20
Sunday

Ballwin Triathlon

Triathlon
Jul
26
Saturday

Kimmswick 5K

5 km
August 2025
Aug
9
Saturday

Drink MO Beer 10k

5 km 10 km
Aug
9
Saturday

Swifty Fun Run - St. Louis

5 km 10 km 13 mi
Aug
16
Saturday

Feed My Sheep Ministry

5 km
Aug
17
Sunday

Ballwin Days 5K

5 km
Aug
22-24
Fr - Su

St. Paul Strassenlauf

Aug
24
Sunday

Summer Sizzler - St. Louis

5 km 10 km 15 km
September 2025
Sep
6
Saturday

Northside Trap Run

5 km
Sep
6
Saturday

CiderMan Triathlon

Triathlon
Sep
13
Saturday

Holy Trinity Catholic Church Titan Trot 5K

5 km
Sep
14
Sunday

Millstadt Parks Biathlon

Duathlon
Sep
14
Sunday

Dogtown Doggy Dash

5 km
Sep
27
Saturday

Belleville Main Street Marathon

13 mi 26 mi
October 2025
Oct
5
Sunday

Mid-America Transplant Celebrate Life 5K

5 km
Oct
11
Saturday

Harvest Moon Run

5 km
Oct
18-19
Sa - Su

The Great St. Louis Halloween Race

5 km 10 km 13 mi
Oct
18
Saturday

Minnie Ha Ha 12 Hour Run

Backyard Ultra 6 hr 12 hr
Oct
24
Friday

Moonlight Howl 5K

5 km
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