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Triathlon Calendar near Newtown Square 2025-2026

Explore the top triathlons near Newtown Square for 2025-2026! We've gathered 102 exciting races in the area. Check out our detailed list below to find your next local race.

March 2025
Mar
15
Saturday

Big Woods Half Marathon

Trail Run 13 mi
Mar
15
Saturday

Shamrock Shenanigans

Backyard Ultra 5 hr 10 hr
Mar
15
Saturday

Haddonfield Adrenaline 5K

5 km
Mar
15
Saturday

Collingswood HS Athletic Hall of Fame 5K

5 km
Mar
15
Saturday

Conshohocken St. Paddy's Day 5K Classic

5 km
Mar
16
Sunday

Get Lucky 5K - Southampton

5 km
Mar
16
Sunday

St. Patrick's Revenge 5K

5 km
Mar
22
Saturday

First State Half Marathon

10 km 13 mi
Mar
22
Saturday

OLM's Run for Mercy

5 km
Mar
23
Sunday

Brandywine Red Run

5 km
Mar
23
Sunday

Penn Carey Law "3.1L" 5K

5 km
Mar
28
Friday

Spring in the Meadow 5K

5 km
Mar
29
Saturday

Save the Strays 5k

5 km
Mar
29
Saturday

Wilmington Senior Center 5K

5 km
Mar
30
Sunday

Nicole Gallo Sunshine and Bubbles 5K

5 km
Mar
30
Sunday

5K Fun Run/Walk for Blood Clot Awareness

5 km
Mar
30
Sunday

Montchanin Trails 5K

Trail Run 5 km
April 2025
Apr
5
Saturday

Bad to the Bone 5K

5 km
Apr
5
Saturday

Hustle for the House 5K

5 km
Apr
5
Saturday

Manna on Main Street Race to End Hunger

5 km 10 km
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