Los Angeles River Ultrarun

The LA River Ultrarun is an unofficial run from the start of the Los Angeles River at Canoga Park, all the way down to the Long Beach. The Ultrarun extends beyond the official river endpoint to the Long Beach Lighthouse.

2026 will be the 10th annual LA River Ultrarun.
Start time is September 12, 5am at Owensmouth Ave & Bassett St

Finishing times based on mile pace and a 5am start time:
- 12min 4:15pm
- 13min 5:09pm
- 14min 7:04pm
- 15min 7:58pm
- 16min 9:02pm (cut off time for aid station, subject to change)


LA River Ultrarun Training Plan (July - Sept 2028)
This training plan is to provide guidance to those who have been running with a weekly mileage that can get you to a level where it may be more likely to have the ability to complete the LA River Ultrarun.

Monday - Easy Run
Tuesday - Rest Day
Wednesday - Hill Run / Strength Training
Thursday - Fast Run
Friday - Easy Run
Saturday - Long Run
Sunday - Alternate each week Long Run / Short Run

Easy runs on Monday and Friday are important to get your legs moving, but not so much as to strain yourself. Tuesday rest day so that you have a least one day a week where you are recovering and giving your muscles time to heal. Wednesday Hills will give you strength. Thursday fast runs will continue to give you more strength. Saturday and Sunday long runs will be tiring back to back days, but prepare you for how hard it will be in the later half of 54 miles.

 

Griffith Hill Training
Wednesdays, 6am
Lot One near the Griffith Park Merry Go Round

Preview Runs

Sunday July 27, 7am LA River Ultrarun Start (Owensmouth Ave & Bassett St)
18 miles round trip, first 9 miles of the river run.
GPX File | Garmin Map

Sunday August 2, 1pm Location TBD
1 Hour Afternoon for heat training

Sunday August 9, 12pm Los Angeles Zoo Parking Lot
12 miles round trip on the LA River bike path, middle miles of the run.
GPX File | Garmin Map

 

LA River Ultra Runners Guide

Tips on Gear Lists, Drop Bag, Hydration & Nutrition Tips, Hydration Vest Recommendations, Estimating How Long it Will take you to finish. Download Here: LA River Ultra Runners Guide (Updated 2026.07.20)