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Half Marathon Calendar near Tualatin Mountains 2026-2027

Monthly updates for Tualatin Mountains

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

Explore the top half marathons near Tualatin Mountains for 2026-2027! We've gathered 32 exciting races in the area. Check out our detailed list below to find your next local race.

April 2026
Apr
25
Sa

US Road Running - Camas

5 km 10 km 13 mi
Apr
26
Su

Spring Classic Duathlon & Half Marathon

Duathlon 5 km 10 km 13 mi
Apr
26
Su

Oxbow Trail Runs

Trail Run 5 km 10 km Half Marathon
May 2026
May
3
Su

Cinco de Mayo - Portland

5 km 10 km Half Marathon
May
9
Sa

Hippie Chick Half Marathon

5 km 7 mi 13 mi
May
10
Su

Super Mom Half Marathon - Portland

5 km 10 km 13 mi
May
17
Su

Reflection Run Washougal

5 km 10 km 12 mi 13 mi
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 13 mi
May
30
Sa

Sole Sisters Half Marathon

5 km 10 km 13 mi
May
31
Su

Oregon Wine Country Half Marathon

5 km Half Marathon
June 2026
Jun
13-21
Sa - Su

Helvetia Half Marathon

5 km 10 km Half Marathon
Jun
20
Sa

Grateful Dad

5 km 10 km 13 mi
Jun
27
Sa

US Road Running - Camas

5 km 10 km 13 mi
Jun
27
Sa

Crown Z Trail Run

Trail Run 5 km 10 km Half Marathon
July 2026
Jul
4
Sa

Foot Traffic Flat

5 km 11 km Half Marathon Marathon
Jul
4
Sa

Christmas Half Marathon in July - Portland (Washougal)

5 km 10 km 13 mi
Jul
12
Su

Fueled by Fine Wine

Trail Run 5 km 7 mi 13 mi
Jul
25
Sa

US Road Running - Camas

5 km 10 km 13 mi
August 2026
Aug
1
Sa

ORRC Pumpkin Ridge Run Half Marathon

5 km 10 km 13 mi
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