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Trail Running Calendar near Rancho Santa Margarita 2026-2027

Monthly updates for Rancho Santa Margarita

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

Explore the top trail runs near Rancho Santa Margarita for 2026-2027! We've gathered 14 exciting races in the area. Check out our detailed list below to find your next local race.

January 2026
Jan
10
Sa

OC Trail Runners Group Run

Trail Run 8 mi
March 2026
Mar
21
Sa

Whiting Ranch Trail Races

Trail Run 6 km 10 km 13 mi 30 km
April 2026
Apr
4
Sa

Billy Goat Mountain Climb

Trail Run 10 km 13 mi 17 mi
Apr
4
Sa

Rock It in El Moro Canyon

Trail Run 6 km 10 mi
Apr
25
Sa

Machete Trail Madness 100K

Trail Run 10 km 50 km 100 km
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 3 hr 6 hr ... 100 mi 24 hr
June 2026
Jun
6
Sa

Fullerton Fit 5K Trail Run

Trail Run 5 km
July 2026
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 ... 30 km 6 hr
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 10 km Half Marathon ... Marathon 50 km
Oct-Nov
28-1
We - Su

Machete Muertos 200

Trail Run 10 mi 20 mi ... 100 mi 200 mi
November 2026
Nov
7
Sa

Saddleback Marathon

Trail Run 10 km Half Marathon 25 km Marathon