Delaware Triathlon Calendar 2025-2026

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Explore the best triathlons in Delaware for 2025-2026! Our updated list features 56 exciting races across the region. Find your next race in Delaware below and join the running community at these great events!

September 2025
Sep
28
Sunday

Dogfish Dash

3 km 6 km
October 2025
Oct
4
Saturday

Pearls of Hope 5k

5 km
Oct
11
Saturday

Delaware School for the Deaf 5k Run/Walk

5 km
Oct
11
Saturday

Wilmington High School Alumni 5K Run/Walk

5 km
Oct
11
Saturday

Freedom From Seizures 5K

5 km
Oct
12
Sunday

Bowers Heritage Day 5k

5 km
Oct
12
Sunday

Tender Hearts 5K

5 km
Oct
18
Saturday

Delaware Trail Fest

Trail Run 12 km 24 km 12 hr
Oct
18
Saturday

Superhero for Hope Run/Walk 5K

5 km
Oct
18
Saturday

Lace Up for Ag Literacy 5K Run/Walk

5 km
Oct
19
Sunday

Delaware Distance Classic 15K

5 km 15 km
Oct
19
Sunday

Tommy C 5k Run Walk

5 km
Oct
19
Sunday

Sussex SuperHero 5K

5 km
Oct
19
Sunday

Mariners Bethel 6.2m Trail Run

Trail Run 2 mi 3 mi 6 mi
Oct
25
Saturday

Creepy Crawl 5k

5 km
Oct
25
Saturday

Christ Church Running of the Rams at Hagley 5k

5 km
Oct
25
Saturday

Boo & Brew 5K

5 km
Oct
26
Sunday

Sheldon Shuffle 5K

5 km
November 2025
Nov
1
Saturday

Delaware School for the Deaf 5k Run/Walk

5 km
Nov
2
Sunday

The Spinnaker Run 5k Run/Walk

5 km
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