The Sierra Azul Trail Challenge is a beloved annual event that takes place in the Sierra Azul Open Space Preserve, located in the foothills of the Santa Cruz Mountains in California. The event offers a range of race distances, including a marathon, half marathon, 10K, and 5K, making it accessible to runners of all experience levels. Participants are treated to breathtaking mountain views, challenging terrain, and scenic trails that wind through the preserve’s diverse landscapes, including dense forests and open ridgelines. Known for its rugged beauty and well-organized races, the Sierra Azul Trail Challenge attracts both trail running enthusiasts and those seeking to push their endurance in an iconic natural setting.
On April 19, 2025, test your endurance at the Sierra Azul Trail Challenge Ultra 50km, a race that ascends 8,802 feet through the rugged beauty of Almaden Quicksilver County Park. It’s a formidable course that offers breathtaking vistas and a true test of stamina for seasoned ultrarunners.
The Sierra Azul Trail Challenge Marathon on April 19, 2025, includes a grueling 7,332 feet of elevation gain, offering a marathon like no other in Almaden Quicksilver County Park. This course is crafted for those who are ready to embrace both the physical and mental demands of trail running in a beautiful setting.
Experience the Sierra Azul Trail Challenge 20 Mile on April 19, 2025, with 5,547 feet of elevation gain through the dramatic landscapes of Almaden Quicksilver County Park. This mid-distance race is perfect for those who crave a substantial challenge without committing to the full ultra distance.
The Sierra Azul Trail Challenge Half Marathon on April 19, 2025, offers runners a tough yet beautiful route with 3,582 feet of elevation gain. It’s the perfect race for those looking to take on a more challenging half marathon in the stunning setting of Almaden Quicksilver County Park.
The Sierra Azul Trail Challenge 7 Mile, taking place on April 19, 2025, combines a shorter distance with 1,663 feet of elevation gain, perfect for those wanting a tough yet manageable trail run. It’s a great way to get a taste of the Sierra Azul’s challenging terrain without committing to longer distances.
Join the Sierra Azul Trail Challenge 5km on April 19, 2025, for a short but intense run that packs 974 feet of elevation gain into just 5 kilometers. It’s a perfect race for beginners looking to experience trail running or for seasoned runners wanting a quick yet challenging workout.
Weather based on historical averages.
On April 19, 2025, test your endurance at the Sierra Azul Trail Challenge Ultra 50km, a race that ascends 8,802 feet through the rugged beauty of Almaden Quicksilver County Park. It’s a formidable course that offers breathtaking vistas and a true test of stamina for seasoned ultrarunners.
The Sierra Azul Trail Challenge Ultra 50km is 50km long.
The Sierra Azul Trail Challenge Ultra 50km takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge Ultra 50km elevation gain is 2683 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!
On April 19, 2025, test your endurance at the Sierra Azul Trail Challenge Ultra 50km, a race that ascends 8,802 feet through the rugged beauty of Almaden Quicksilver County Park. It’s a formidable course that offers breathtaking vistas and a true test of stamina for seasoned ultrarunners.
The Sierra Azul Trail Challenge Ultra 50km is 50km long.
The Sierra Azul Trail Challenge Ultra 50km takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge Ultra 50km elevation gain is 2683 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!
The Sierra Azul Trail Challenge Marathon on April 19, 2025, includes a grueling 7,332 feet of elevation gain, offering a marathon like no other in Almaden Quicksilver County Park. This course is crafted for those who are ready to embrace both the physical and mental demands of trail running in a beautiful setting.
The Sierra Azul Trail Challenge Marathon is 42km long.
The Sierra Azul Trail Challenge Marathon takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge Marathon elevation gain is 2235 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!
The Sierra Azul Trail Challenge Marathon on April 19, 2025, includes a grueling 7,332 feet of elevation gain, offering a marathon like no other in Almaden Quicksilver County Park. This course is crafted for those who are ready to embrace both the physical and mental demands of trail running in a beautiful setting.
The Sierra Azul Trail Challenge Marathon is 42km long.
The Sierra Azul Trail Challenge Marathon takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge Marathon elevation gain is 2235 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!
Experience the Sierra Azul Trail Challenge 20 Mile on April 19, 2025, with 5,547 feet of elevation gain through the dramatic landscapes of Almaden Quicksilver County Park. This mid-distance race is perfect for those who crave a substantial challenge without committing to the full ultra distance.
The Sierra Azul Trail Challenge 20 Mile is 32km long.
The Sierra Azul Trail Challenge 20 Mile takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge 20 Mile elevation gain is 1691 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!
Experience the Sierra Azul Trail Challenge 20 Mile on April 19, 2025, with 5,547 feet of elevation gain through the dramatic landscapes of Almaden Quicksilver County Park. This mid-distance race is perfect for those who crave a substantial challenge without committing to the full ultra distance.
The Sierra Azul Trail Challenge 20 Mile is 32km long.
The Sierra Azul Trail Challenge 20 Mile takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge 20 Mile elevation gain is 1691 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!
The Sierra Azul Trail Challenge Half Marathon on April 19, 2025, offers runners a tough yet beautiful route with 3,582 feet of elevation gain. It’s the perfect race for those looking to take on a more challenging half marathon in the stunning setting of Almaden Quicksilver County Park.
The Sierra Azul Trail Challenge Half Marathon is 21km long.
The Sierra Azul Trail Challenge Half Marathon takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge Half Marathon elevation gain is 1092 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!
The Sierra Azul Trail Challenge Half Marathon on April 19, 2025, offers runners a tough yet beautiful route with 3,582 feet of elevation gain. It’s the perfect race for those looking to take on a more challenging half marathon in the stunning setting of Almaden Quicksilver County Park.
The Sierra Azul Trail Challenge Half Marathon is 21km long.
The Sierra Azul Trail Challenge Half Marathon takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge Half Marathon elevation gain is 1092 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!
The Sierra Azul Trail Challenge 7 Mile, taking place on April 19, 2025, combines a shorter distance with 1,663 feet of elevation gain, perfect for those wanting a tough yet manageable trail run. It’s a great way to get a taste of the Sierra Azul’s challenging terrain without committing to longer distances.
The Sierra Azul Trail Challenge 7 Mile is 11km long.
The Sierra Azul Trail Challenge 7 Mile takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge 7 Mile elevation gain is 507 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!
The Sierra Azul Trail Challenge 7 Mile, taking place on April 19, 2025, combines a shorter distance with 1,663 feet of elevation gain, perfect for those wanting a tough yet manageable trail run. It’s a great way to get a taste of the Sierra Azul’s challenging terrain without committing to longer distances.
The Sierra Azul Trail Challenge 7 Mile is 11km long.
The Sierra Azul Trail Challenge 7 Mile takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge 7 Mile elevation gain is 507 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!
Join the Sierra Azul Trail Challenge 5km on April 19, 2025, for a short but intense run that packs 974 feet of elevation gain into just 5 kilometers. It’s a perfect race for beginners looking to experience trail running or for seasoned runners wanting a quick yet challenging workout.
The Sierra Azul Trail Challenge 5km is 5km long.
The Sierra Azul Trail Challenge 5km takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge 5km elevation gain is 297 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!
Join the Sierra Azul Trail Challenge 5km on April 19, 2025, for a short but intense run that packs 974 feet of elevation gain into just 5 kilometers. It’s a perfect race for beginners looking to experience trail running or for seasoned runners wanting a quick yet challenging workout.
The Sierra Azul Trail Challenge 5km is 5km long.
The Sierra Azul Trail Challenge 5km takes place in San Jose, California, USA.
The Sierra Azul Trail Challenge 5km elevation gain is 297 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!
Sport:
Running
Tags:
Nature
Altitude
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Sierra Azul Trail Challenge 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 Sierra Azul Trail Challenge website.