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Trail Running Calendar near Mission Viejo 2026-2027

Monthly updates for Mission Viejo

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

Explore the top trail runs near Mission Viejo for 2026-2027! We've gathered 20 exciting races in the area. Check out our detailed list below to find your next local race.

May 2026
May
16
Sa

O'Neill Park Trail Races

Trail Run 10 km Half Marathon ... Marathon 50 km
May
23-24
Sa - Su

Nanny Goat

Trail Run 100 mi
May
27
We

Into the Wild OC Trail Run

Trail Run 5 km
May
30
Sa

OC Trail Runners Group Run

Trail Run 6 mi
June 2026
Jun
6
Sa

Fullerton Fit 5K Trail Run

Trail Run 5 km
Jun
6
Sa

Shadow Strike Unsanctioned Run - Chino Hills

Trail Run 4 mi
Jun
20
Sa

Nixon 5K for Title IX

Trail Run 3 mi
Jun
24
We

Into the Wild OC Trail Run

Trail Run 5 km
July 2026
Jul
15
We

Into the Wild OC Trail Run

Trail Run 5 km
Jul
18
Sa

Harding Hustle

Trail Run 15 km 30 km 50 km
August 2026
Aug
1
Sa

Riley Park Trail Races

Trail Run 5 km 10 km ... Half Marathon 30 km
Aug
26
We

Into the Wild OC Trail Run

Trail Run 5 km
October 2026
Oct
10
Sa

That's No Moon Trail Races

Trail Run 30 km 50 km 50 mi
Oct
24
Sa

Caspers Trail Races

Trail Run
Oct-Nov
28-1
We - Su

Machete Muertos 200

Trail Run 10 mi 20 mi ... 100 mi 200 mi
Oct
31
Sa

Halloween Spooktacular 6 Hour Trail Run

Trail Run
November 2026
Nov
7
Sa

Saddleback Marathon

Trail Run 10 km 13 mi 25 km 26 mi
Nov
26
Th

World Help Huntington Beach Turkey Wobble

Trail Run 5 km 10 km
December 2026
Dec
5
Sa

Into the Wild OC Trail Run

Trail Run 28 km
Dec
12
Sa

Crystal Cove Trail Run

Trail Run 6 km 15 km
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