
SEB Mud Run is an obstacle course race on October 3, 2026 in Castaic, CA, with entry fees from $25 to $65.
🕓 Event Schedule
6:00 AM – Registration & Check-in Opens
Live Demonstration by Special Weapons Team
7:30 AM – Kids’ 1-Mile Fun Mud Run Kicks Off
8:30 AM – Registration & Check-in Closes
9:00 AM – Open and Competitive Individual Waves Begin
➡️ Participants will be released in waves every 5–10 minutes
Race Attire
Suit up for the mud!
Recommended gear: Boots, pants, and your exclusive SEB Mud Run tank top
Prefer performance wear? Go for it—just be ready to get dirty!
Registration Details
Open to the Public
LASAA Members: FREE pre-registration ($20 Race Day)
Non-Members: $65 Pre Registration
Day-of Registration: $80 for non-members
🎽 All 4 Mile Course participants receive an official SEB Mud Run tank top!
Kids 1 Mile Run $25 Pre-Registration $30 Race Day
💦 Post-Race Amenities
On-site showers and rinse-off stations
Changing tents available
🧼 What to bring:
Soap, shampoo, and towel
Clean shoes and dry clothes for after the race
⚠️ Important Disclaimer
This is not an LASD-sanctioned event and is not covered under Workers' Compensation in the event of injury.
(Reference MPP 3-09/300.00 & 3-09/300.05)
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
85°
Typical Low
59°
Chance of Rain
5%
Based on US Climate Normals data from Newhall 5nw, 6 mi from the venue.
City Elevation
1,293 ft
Nearest Airport
BUR
Hollywood Burbank/Bob Hope Airport · 25 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Every finish line starts with a single decision. Claim your spot at SEB Mud Run, put it on the calendar, and turn “someday” into a start date.
17
Days to train
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Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
Obstacle course races combine running with walls, rope climbs, carries, and mud — testing strength, grip, endurance, and mental toughness all at once.
No two races feel the same, and it is a truly unique endurance sport.
Obstacle course races (OCR) combine running over different terrain with a series of physical obstacles — walls, rope climbs, monkey bars, carries, and crawls. The barrier to entry is lower than it looks.
SEB Mud Run
Oct 3, 2026