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Half Marathon Calendar near St. Helens 2025-2026

Monthly updates for St. Helens

Get new running races (and updates) in your inbox every month.

Explore the top half marathons near St. Helens for 2025-2026! We've gathered 24 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
24
Sa

US Road Running - Camas

5 km 10 km Half Marathon
February 2026
Feb
22
Su

Vancouver Lake Half Marathon

4 mi Half Marathon
Feb
28
Sa

US Road Running - Camas

5 km 10 km Half Marathon
March 2026
Mar
15
Su

Shamrock Run Fest

5 km 8 km 13 mi
Mar
28
Sa

US Road Running - Camas

5 km 10 km Half Marathon
April 2026
Apr
5
Su

Stub Stewart Trail Challenge

Trail Run 7 mi 13 mi 20 mi 26 mi
Apr
12
Su

ORRC Vernonia Marathon

13 mi 26 mi
Apr
25
Sa

US Road Running - Camas

5 km 10 km Half Marathon
Apr
26
Su

Spring Classic Duathlon & Half Marathon

Duathlon 5 km 10 km Half Marathon
May 2026
May
3
Su

Cinco de Mayo - Portland

5 km 10 km Half Marathon
May
17
Su

Reflection Run Washougal

5 km 10 km 12 mi Half Marathon
May
23-25
Sa - Mo

Stumptown Trail Runs

Trail Run Half Marathon 50 km
May
23
Sa

US Road Running - Camas

5 km 10 km Half Marathon
June 2026
Jun
20
Sa

Grateful Dad

5 km 10 km Half Marathon
Jun
27
Sa

US Road Running - Camas

5 km 10 km Half Marathon
July 2026
Jul
4
Sa

Foot Traffic Flat

5 km 10 km Half Marathon Marathon
August 2026
Aug
1
Sa

ORRC Pumpkin Ridge Run Half Marathon

5 km 10 km Half Marathon
Aug
22
Sa

US Road Running - Camas

5 km 10 km Half Marathon
Aug
29-30
Sa - Su

Appletree Marathon

5 km Half Marathon Marathon
September 2026
Sep
26
Sa

US Road Running - Camas

5 km 10 km Half Marathon