Set for July 12, 2025, the San Lorenzo River Trail Run is a premier trail racing event in Santa Cruz, California, hosted at Harvey West Park. Participants can choose from a variety of distances: 10K, Half Marathon, 30K, Marathon, and 50K, along with a free ¼-mile Kid’s Run for children aged 6 and under. The course winds through towering 1,500-year-old coastal redwoods, lush stream canyons, open meadows, and high chaparral-covered ridges, with the longer distances featuring multiple crossings of the San Lorenzo River. All distances are precisely measured using a Rolatape® surveyor’s wheel, ensuring accuracy. Finishers receive custom medals, and top performers in each age group are awarded additional prizes. The event emphasizes sustainability by being cupless, encouraging runners to bring their own hydration containers.
Races
The San Lorenzo River Trail 50K takes place on Saturday, July 12, 2025, in Santa Cruz, California. Hosted by Coastal Trail Runs, this demanding ultramarathon features 1,577 meters of elevation gain and leads runners through the majestic redwoods, river canyons, and technical trails of Henry Cowell Redwoods State Park.
The San Lorenzo River Trail Marathon is scheduled for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this challenging 26.2-mile race features approximately 1,326 meters (4,350 feet) of elevation gain, guiding runners through ancient redwood forests, stream canyons, and multiple crossings of the San Lorenzo River.
The San Lorenzo River Trail 30K is set for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this 30-kilometer race features 914 meters of elevation gain and challenges runners with rugged terrain, steep ascents, and stunning views of the San Lorenzo River and towering redwoods.
The San Lorenzo River Trail Half Marathon is scheduled for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this 13.1-mile adventure includes 663 meters of elevation gain, taking runners through dense redwood forest, single-track climbs, and scenic river crossings in Henry Cowell Redwoods State Park.
The San Lorenzo River Trail 10K will take place on Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this scenic and moderately challenging 10K features 244 meters of elevation gain, winding through the lush redwood trails and serene riverside paths of Henry Cowell Redwoods State Park.
Weather based on historical averages.
FAQs
What is the San Lorenzo River Trail 50K?
How long is the San Lorenzo River Trail 50K?
Where does the San Lorenzo River Trail 50K take place?
What is the elevation gain of the San Lorenzo River Trail 50K?
How can I prepare for the San Lorenzo River Trail 50K?
How do I choose the right training plan for the San Lorenzo River Trail 50K?
The San Lorenzo River Trail 50K takes place on Saturday, July 12, 2025, in Santa Cruz, California. Hosted by Coastal Trail Runs, this demanding ultramarathon features 1,577 meters of elevation gain and leads runners through the majestic redwoods, river canyons, and technical trails of Henry Cowell Redwoods State Park.
The San Lorenzo River Trail 50K is 50km long.
The San Lorenzo River Trail 50K takes place in Santa Cruz, CA, USA.
The San Lorenzo River Trail 50K elevation gain is 1577 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised 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 personalised 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!
What is the San Lorenzo River Trail 50K?
The San Lorenzo River Trail 50K takes place on Saturday, July 12, 2025, in Santa Cruz, California. Hosted by Coastal Trail Runs, this demanding ultramarathon features 1,577 meters of elevation gain and leads runners through the majestic redwoods, river canyons, and technical trails of Henry Cowell Redwoods State Park.
How long is the San Lorenzo River Trail 50K?
The San Lorenzo River Trail 50K is 50km long.
Where does the San Lorenzo River Trail 50K take place?
The San Lorenzo River Trail 50K takes place in Santa Cruz, CA, USA.
What is the elevation gain of the San Lorenzo River Trail 50K?
The San Lorenzo River Trail 50K elevation gain is 1577 metres, which Runna classifies as a Hilly race.
How can I prepare for the San Lorenzo River Trail 50K?
The best way to train for the next race is to use a personalised 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!
How do I choose the right training plan for the San Lorenzo River Trail 50K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised 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!
What is the San Lorenzo River Trail Marathon?
How long is the San Lorenzo River Trail Marathon?
Where does the San Lorenzo River Trail Marathon take place?
What is the elevation gain of the San Lorenzo River Trail Marathon?
How can I prepare for the San Lorenzo River Trail Marathon?
How do I choose the right training plan for the San Lorenzo River Trail Marathon?
The San Lorenzo River Trail Marathon is scheduled for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this challenging 26.2-mile race features approximately 1,326 meters (4,350 feet) of elevation gain, guiding runners through ancient redwood forests, stream canyons, and multiple crossings of the San Lorenzo River.
The San Lorenzo River Trail Marathon is 42km long.
The San Lorenzo River Trail Marathon takes place in Santa Cruz, CA, USA.
The San Lorenzo River Trail Marathon elevation gain is 1326 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised 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 personalised 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!
What is the San Lorenzo River Trail Marathon?
The San Lorenzo River Trail Marathon is scheduled for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this challenging 26.2-mile race features approximately 1,326 meters (4,350 feet) of elevation gain, guiding runners through ancient redwood forests, stream canyons, and multiple crossings of the San Lorenzo River.
How long is the San Lorenzo River Trail Marathon?
The San Lorenzo River Trail Marathon is 42km long.
Where does the San Lorenzo River Trail Marathon take place?
The San Lorenzo River Trail Marathon takes place in Santa Cruz, CA, USA.
What is the elevation gain of the San Lorenzo River Trail Marathon?
The San Lorenzo River Trail Marathon elevation gain is 1326 metres, which Runna classifies as a Hilly race.
How can I prepare for the San Lorenzo River Trail Marathon?
The best way to train for the next race is to use a personalised 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!
How do I choose the right training plan for the San Lorenzo River Trail Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised 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!
What is the San Lorenzo River Trail 30K?
How long is the San Lorenzo River Trail 30K?
Where does the San Lorenzo River Trail 30K take place?
What is the elevation gain of the San Lorenzo River Trail 30K?
How can I prepare for the San Lorenzo River Trail 30K?
How do I choose the right training plan for the San Lorenzo River Trail 30K?
The San Lorenzo River Trail 30K is set for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this 30-kilometer race features 914 meters of elevation gain and challenges runners with rugged terrain, steep ascents, and stunning views of the San Lorenzo River and towering redwoods.
The San Lorenzo River Trail 30K is 30km long.
The San Lorenzo River Trail 30K takes place in Santa Cruz, CA, USA.
The San Lorenzo River Trail 30K elevation gain is 914 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised 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 personalised 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!
What is the San Lorenzo River Trail 30K?
The San Lorenzo River Trail 30K is set for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this 30-kilometer race features 914 meters of elevation gain and challenges runners with rugged terrain, steep ascents, and stunning views of the San Lorenzo River and towering redwoods.
How long is the San Lorenzo River Trail 30K?
The San Lorenzo River Trail 30K is 30km long.
Where does the San Lorenzo River Trail 30K take place?
The San Lorenzo River Trail 30K takes place in Santa Cruz, CA, USA.
What is the elevation gain of the San Lorenzo River Trail 30K?
The San Lorenzo River Trail 30K elevation gain is 914 metres, which Runna classifies as a Hilly race.
How can I prepare for the San Lorenzo River Trail 30K?
The best way to train for the next race is to use a personalised 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!
How do I choose the right training plan for the San Lorenzo River Trail 30K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised 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!
What is the San Lorenzo River Trail Half Marathon?
How long is the San Lorenzo River Trail Half Marathon?
Where does the San Lorenzo River Trail Half Marathon take place?
What is the elevation gain of the San Lorenzo River Trail Half Marathon?
How can I prepare for the San Lorenzo River Trail Half Marathon?
How do I choose the right training plan for the San Lorenzo River Trail Half Marathon?
The San Lorenzo River Trail Half Marathon is scheduled for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this 13.1-mile adventure includes 663 meters of elevation gain, taking runners through dense redwood forest, single-track climbs, and scenic river crossings in Henry Cowell Redwoods State Park.
The San Lorenzo River Trail Half Marathon is 21km long.
The San Lorenzo River Trail Half Marathon takes place in Santa Cruz, CA, USA.
The San Lorenzo River Trail Half Marathon elevation gain is 663 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised 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 personalised 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!
What is the San Lorenzo River Trail Half Marathon?
The San Lorenzo River Trail Half Marathon is scheduled for Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this 13.1-mile adventure includes 663 meters of elevation gain, taking runners through dense redwood forest, single-track climbs, and scenic river crossings in Henry Cowell Redwoods State Park.
How long is the San Lorenzo River Trail Half Marathon?
The San Lorenzo River Trail Half Marathon is 21km long.
Where does the San Lorenzo River Trail Half Marathon take place?
The San Lorenzo River Trail Half Marathon takes place in Santa Cruz, CA, USA.
What is the elevation gain of the San Lorenzo River Trail Half Marathon?
The San Lorenzo River Trail Half Marathon elevation gain is 663 metres, which Runna classifies as a Hilly race.
How can I prepare for the San Lorenzo River Trail Half Marathon?
The best way to train for the next race is to use a personalised 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!
How do I choose the right training plan for the San Lorenzo River Trail Half Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised 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!
What is the San Lorenzo River Trail 10K?
How long is the San Lorenzo River Trail 10K?
Where does the San Lorenzo River Trail 10K take place?
What is the elevation gain of the San Lorenzo River Trail 10K?
How can I prepare for the San Lorenzo River Trail 10K?
How do I choose the right training plan for the San Lorenzo River Trail 10K?
The San Lorenzo River Trail 10K will take place on Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this scenic and moderately challenging 10K features 244 meters of elevation gain, winding through the lush redwood trails and serene riverside paths of Henry Cowell Redwoods State Park.
The San Lorenzo River Trail 10K is 10km long.
The San Lorenzo River Trail 10K takes place in Santa Cruz, CA, USA.
The San Lorenzo River Trail 10K elevation gain is 244 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised 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 personalised 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!
What is the San Lorenzo River Trail 10K?
The San Lorenzo River Trail 10K will take place on Saturday, July 12, 2025, in Santa Cruz, California. Organized by Coastal Trail Runs, this scenic and moderately challenging 10K features 244 meters of elevation gain, winding through the lush redwood trails and serene riverside paths of Henry Cowell Redwoods State Park.
How long is the San Lorenzo River Trail 10K?
The San Lorenzo River Trail 10K is 10km long.
Where does the San Lorenzo River Trail 10K take place?
The San Lorenzo River Trail 10K takes place in Santa Cruz, CA, USA.
What is the elevation gain of the San Lorenzo River Trail 10K?
The San Lorenzo River Trail 10K elevation gain is 244 metres, which Runna classifies as a Hilly race.
How can I prepare for the San Lorenzo River Trail 10K?
The best way to train for the next race is to use a personalised 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!
How do I choose the right training plan for the San Lorenzo River Trail 10K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised 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!
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Sport:
Running
Tags:
Kid friendly
Park
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by San Lorenzo River Trail Run or Coastal 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 San Lorenzo River Trail Run website.
