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Triathlon Calendar near Glen Carbon 2025-2026

Explore the top triathlons near Glen Carbon for 2025-2026! We've gathered 26 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
24
Saturday

Time Travel Half-Marathon - St. Louis

5 km 10 km 13 mi
February 2026
Feb
28
Saturday

Shrewsbury Thrifty Fifty

1 hr 50 km 50 mi
March 2026
Mar
21-22
Sa - Su

American Bottoms 100

55 mi 110 mi
Mar
28
Saturday

Schon Park 9 Endurance Run

Backyard Ultra 3 hr 6 hr 9 hr
April 2026
Apr
11
Saturday

Greater St. Louis Marathon

5 km 10 km 13 mi 26 mi
Apr
11
Saturday

Double Chubb 50K

Trail Run 8 mi 25 km 50 km
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