Fairfax close

Triathlon Calendar near Fairfax 2025-2026

Explore the top triathlons near Fairfax for 2025-2026! We've gathered 144 exciting races in the area. Check out our detailed list below to find your next local race.

March 2025
Mar
11
Tuesday

Tuesday Night 5k

5 km
Mar
13
Thursday

National K9 Veterans Day 10k

5 km 10 km
Mar
14
Friday

Pi Day 10k

5 km 10 km
Mar
15
Saturday

Rock 'n' Roll Washington DC

5 km 13 mi
Mar
15
Saturday

Lucky Clover 5k

5 km
Mar
15
Saturday

Shamrock Shuffle 10k - Lorton

10 km
Mar
16
Sunday

Shamrock 5K Run

5 km
Mar
16
Sunday

Leprechaun Leap 10k - Fairfax Station

10 km
Mar
16
Sunday

Spring Backyard Burn Trail Run - Laurel Hill

Trail Run 5 mi 10 mi
Mar
16
Sunday

St. Patrick's Port City 10k

10 km
Mar
16
Sunday

St. Patrick's Marathon

5 km 13 mi 26 mi
Mar
16
Sunday

Lucky Leprechaun 5K - Herndon

5 km
Mar
22
Saturday

Hope for Horses 10k

10 km
Mar
22
Saturday

Molon Lave 5k

Trail Run 5 km
Mar
22
Saturday

Rock Creek 10k

10 km
Mar
22-23
Sa - Su

Boxers & Briefs 5K

5 km
Mar
23
Sunday

Virginia Marathon

5 km 10 km 13 mi 26 mi
Mar
23
Sunday

Doggy Dash 10k

10 km
Mar
23
Sunday

MCRRC Piece of Cake 10K

5 km 10 km
Mar
23
Sunday

Operation Enduring Warrior Half

5 km 10 km 13 mi
Articles
Mizuno Wave Rider 28: Elevating the Legacy of a Running Icon
Garmin Forerunner Review: Garmin Forerunner Series
Stride with Confidence: A Comprehensive Guide to Saucony Running Shoes
Essential Running Form Techniques for Enhanced Performance and Injury Prevention