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Triathlon Calendar near Naperville Park District 2025-2026

Explore the top triathlons near Naperville Park District for 2025-2026! We've gathered 116 exciting races in the area. Check out our detailed list below to find your next local race.

October 2025
Oct
19
Sunday

Naperville Half Marathon

5 km 10 km 13 mi
Oct
25
Saturday

Fancy Nonsense 25K/50K

Trail Run 25 km 50 km
Oct
25
Saturday

Bat Race 10K

5 km 10 km
Oct
26
Sunday

Haunted Halloween Half Marathon

5 km 13 mi
Oct
26
Sunday

Endeavor Health Fraidycat 8k

5 km 8 km
Oct
31
Friday

Larry St. Onge Memorial Run

5 km 10 km
November 2025
Nov
15
Saturday

The Forge Trail Run Festival

Trail Run 10 km 20 km 30 km 60 km
Nov
23
Sunday

Lincolnwood Turkey Trot 10K

5 km 10 km
Nov
27
Thursday

The Fox & The Turkey Races

4 mi
Nov
27
Thursday

St. Charles Turkey Trot

5 km
Nov
27
Thursday

Grant Park Turkey Trot 10K

5 km 10 km
December 2025
Dec
6
Saturday

Santa Hustle Chicago

5 km 10 km
January 2026
Jan
1
Thursday

Resolution Run - Olympia Fields

6 km
Jan
31
Saturday

F3 Lake Half Marathon

5 km 13 mi
April 2026
Apr
18
Saturday

Chicken Run

5 km 10 km
May 2026
May
9
Saturday

Mother's Day Run/Walk - St. Charles

5 km
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