JANUARY 12, 2019

The San Diego 50 & Trail Marathon is made possible with cooperation and support from the San Dieguito River Park.

January 12, 2019



Registration for the San Diego 50 Mile & Trail Marathon begins June 10 for SURF members and June 17 for general registration! The field is limited to 300 total runners between both distances, so be sure to sign up early as we will sell out!


$100 June 1 – July 31
$125 August 1 – October 31
$150 November 1 – January 15


$80 June 1 – July 31
$100 August 1 – October 31
$120 November 1 – January 15

Refunds and Transfers:

Partial refunds of 50% will be returned to registrants who notify race director prior to October 31st that they are dropping from the race. After this date refunds will not be allowed. I know all too well that injuries are a part of long distance running events, unfortunately because of the costs associated with putting on the race, full refunds and last minute cancellations can’t be accommodated. Thank you for your understanding.



Start/Finish: San Pasqual Valley Trailhead

San Dieguito River Park
18195 Bandy Canyon Road
Escondido, CA 92025

Turn on to Bandy Canyon Rd from San Pasqual Valley Rd/Hwy 78 and make an IMMEDIATE Right turn in to the parking lot.


Early starters must announce their intentions to start early to the Race Director via email prior to race day. Please email racedirector@offroadpursuits.com.

Participants opting for the early start will not be eligible for overall or age group awards and will have their results posted separately.

Be sure to check the Aid Station Opening Times and be prepared to carry enough nutrition and hydration in the event you pass the first few aid stations before they open.

Participants wishing to use the SD50 as a qualifier for a future 100 mile event MUST start at the 6:30am time and finish under the 13 hour cutoff.


All runners are required to carry a minimum amount of hydration with them throughout the event. Marathon participants must have no less than a hydration belt (10 oz). 50 Mile participants must carry at least a 20 oz Hand Bottle throughout the event. These can be substituted with various belts, packs, bottles that best fit your running needs, but all participants must carry their own fluid container. This not only helps ensure your safety and performance on the course, but also helps us cut down on waste and keep the event as green as possible.

Aid stations will be well stocked with water, electrolyte drink, gels, snacks and salt tabs. However, it is STRONGLY encouraged that you carry your own salt and gels; use the aid stations to supplement as needed. Again, this is to best ensure your safety and performance on the course and cut down on waste.


This event is held with the cooperation of the San Dieguito River Park and Black Mountain Open Space. These trails are fantastic multi-use trails meant for the enjoyment of the entire San Diego community.

DO NOT trash the trails. Anything you carry with you from the start can be carried to an aid station. Anything picked up from an aid station can be left there or carried to the next. Anyone seen littering the trails will be IMMEDIATELY disqualified, will not receive an official finish result, and will be banned from all future Off Road Pursuits events. If you see someone drop something, let them know so they can go back and pick it up. If they do not, please alert the next Aid Station. There isn’t much I take seriously in life, but the care and preservation of our trails is one of them. Pack it in, pack it out!


Drop Bags are allowed and will be available at the following Aid Stations: Mile 20 & Mile 30.

Drop bags are to be provided by the runner and clearly labeled with the runner’s LAST NAME and BIB # and must be at the race start no later than 6AM. Drop bags will not be returned to the Start area until after the Mile 30 Aid Station (Bing Crosby 2) closes. This means bags will not be returned to the start area until 5PM at the absolute earliest! Bags must be claimed at the Finish; any bag not claimed by the completion of the event will be discarded and all useable items will be donated. Bags will NOT be held beyond race day.


Whether you are starting in the early wave or standard wave for the 50 Mile, you will benefit from a headlamp for the start.

If you will be running after 5PM, you MUST have a headlamp or flashlight to be allowed to continue. Aid Station volunteers will not allow you to continue running without a light source after 5PM. If you do not carry a headlamp from the start, be sure to have one in your drop bag at the Bing Crosby Aid Station.


Any drops that happen during the race must be immediately reported to the aid station captain. Upon dropping out, please turn your bib in to the aid station.

Anyone dropping out without notifying the aid station will be disqualified and banned from future Off Road Pursuits events. This action can result in costly search and rescue efforts and is taken seriously. Please don’t make your volunteers spend all night searching for you when you are home on the couch!


There is a 13 hour time limit for the 50 mile event with intermediary cutoffs at aid stations. The 50 mile early start will give runners an extra hour (14 hours) to complete the course. The Marathon has no limit, you just have to beat the 50 milers. There is no early start for the Marathon.


Pacers are NOT allowed on the course at any time. No non-volunteer outside assistance is allowed except within the approved “Crew Access” Aid Stations. Anyone receiving outside assistance away from these areas or accompanied by a pacer on course will be disqualified. You are more than welcome to run the entire race with someone else that is a registered participant, however, outside pacing assistance will not be allowed.


The San Diego 50 and Trail Marathon will be held rain or shine. In case of rain, the event will be held per the Head Park Ranger’s discretion.


Packet pick-up will be available at Laces Running Company. Dates and times will be posted closer to race day.

Laces Running Company is located at:
10549 Scripps Poway Pkwy, Suite H
San Diego, Ca 92131

Packets not picked up prior to race day will be available on race morning at the start/finish area. Please arrive early enough to get your packet and check-in.



5:00am – Early Start Mandatory Check In *
5:30am – 50 Mile Early Start
5:30am – 6:15am – 50 Mile Mandatory Check In
6:30am – 50 Mile Start**


6:30am – 7:15am – Marathon Mandatory Check In*
7:30am – Marathon Start

*Mandatory Check In:

Even if you picked up your packet prior to race day, it is MANDATORY that you check in prior to starting the event. This will allow us to know who is out on the course and helps ensure your safety. Anyone that starts the race without checking in first will be disqualified.

**50 Mile Time Cutoff:

There is a 13 hour time limit for 50 Mile runners (starting at the standard time). ALL runners must be off the course by 7:30pm.


The San Diego 50 Mile & Trail Marathon course will feature the beautiful trails of the San Dieguito River Park. The course is a mix of double track, single track, fire road and a very small amount of paved running.

Aid Stations are located approximately every 4-6 miles. They are fully stocked with water, electrolyte drink, energy gels, fruit, and snacks.

New 50 Mile Course Coming for 2019. Course Info Coming Soon.

Updated Course Description Coming Soon
Updated Course Map/Elevation Profile Coming Soon
Updated 50 Mile Aid Station Info Coming Soon
SD Trail Marathon Course Map

Click Map to Enlarge

SD Trail Marathon Elevation Profile

Click to Enlarge

  • Mile 5.7
  • Mile 10
  • Mile 13.1 – WATER ONLY
  • Mile 16.2
  • Mile 20.5


All participants will receive a long sleeve technical running shirt and finishers will receive unique medals. Awards will be presented for the following categories in both the 50 Mile & Trail Marathon distances:

Overall Male 1st, 2nd, 3rd
Overall Female 1st, 2nd, 3rd

First Place Male and Female in the following Age Groups:
19 and Under
20 – 29
30 – 39
40 – 49
50 – 59
60 – 69
70 and Above
*Note: The Top-3 Overall winners will be pulled out of the Age Groups for distribution of awards.


Southern California Ultra Grand Prix

The San Diego 50 is a Proud Member of the SoCal UltraRunner’s Grand Prix!