The Mt. Umunhum Ultras on June 7, 2025, features an exciting series of races with over 15,000 feet of elevation gain. The event will challenge runners on a variety of trail distances, from a 5K to a 52-mile ultra marathon. Set in the Santa Clara Valley, Sierra Azul Open Space Preserve, and the Santa Cruz Mountains, the race offers diverse terrain with steep climbs and breathtaking views.
Race Date:
07 June, 2025
The Mt. Umunhum Ultra 52 Mile on June 7, 2025, presents a formidable challenge with 3,841 meters of elevation gain through the scenic Sierra Azul Open Space Preserve. Designed for seasoned ultrarunners, this race offers steep ascents, technical trails, and rewarding views that make every mile an adventure.
Weather based on historical averages.
The Mt. Umunhum Ultra 52 Mile on June 7, 2025, presents a formidable challenge with 3,841 meters of elevation gain through the scenic Sierra Azul Open Space Preserve. Designed for seasoned ultrarunners, this race offers steep ascents, technical trails, and rewarding views that make every mile an adventure.
The Mt. Umunhum Ultra 52 Mile is 83km long.
The Mt. Umunhum Ultra 52 Mile takes place in San Jose, California, USA.
The Mt. Umunhum Ultra 52 Mile elevation gain is 3841 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Mt. Umunhum Ultra 52 Mile on June 7, 2025, presents a formidable challenge with 3,841 meters of elevation gain through the scenic Sierra Azul Open Space Preserve. Designed for seasoned ultrarunners, this race offers steep ascents, technical trails, and rewarding views that make every mile an adventure.
The Mt. Umunhum Ultra 52 Mile is 83km long.
The Mt. Umunhum Ultra 52 Mile takes place in San Jose, California, USA.
The Mt. Umunhum Ultra 52 Mile elevation gain is 3841 meters, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Nature
Altitude
Park
Fun Run
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Mt. Umunhum Ultras or Troy’s California Trail Runs. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Mt. Umunhum Ultras website.