
The Annadel Half Marathon, scheduled for April 6, 2025, in Santa Rosa, California, offers runners a 13.1-mile trail race through the picturesque Trione-Annadel State Park. The course includes 519 meters of elevation gain, traversing rocky trails, serene woodlands, and vibrant wildflower meadows. Designed for intermediate and advanced runners, the event provides a challenging yet rewarding experience. Participants can enjoy excellent race-day support, chip timing, and a lively post-race celebration. As a non-profit fundraising event, the Annadel Half Marathon contributes to the enhancement of the park for all to enjoy.
Races
The Annadel Half Marathon, hosted by Annadel Half Marathon, is scheduled for April 6, 2025, in Santa Rosa, California. This 13.1-mile race challenges runners with 519 meters of elevation gain along the rugged trails of Trione-Annadel State Park.
The Annadel 10K, hosted by Annadel Half Marathon, takes place on April 6, 2025, at Trione-Annadel State Park in Santa Rosa, California. This 6.2-mile course offers 176 meters of elevation gain, blending technical trails with breathtaking natural beauty.
The Annadel 5K, hosted by Annadel Half Marathon, invites runners of all levels to a scenic 3.1-mile race on April 6, 2025, in Santa Rosa, California. Featuring 65 meters of elevation gain, this out-and-back course is a great introduction to trail running.
Weather based on historical averages.
FAQs
What is the Annadel Half Marathon?
How long is the Annadel Half Marathon?
Where does the Annadel Half Marathon take place?
What is the elevation gain of the Annadel Half Marathon?
How can I prepare for the Annadel Half Marathon?
How do I choose the right training plan for the Annadel Half Marathon?
The Annadel Half Marathon, hosted by Annadel Half Marathon, is scheduled for April 6, 2025, in Santa Rosa, California. This 13.1-mile race challenges runners with 519 meters of elevation gain along the rugged trails of Trione-Annadel State Park.
The Annadel Half Marathon is 21km long.
The Annadel Half Marathon takes place in Santa Rosa, California, USA.
The Annadel Half Marathon elevation gain is 519 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 Annadel Half Marathon?
The Annadel Half Marathon, hosted by Annadel Half Marathon, is scheduled for April 6, 2025, in Santa Rosa, California. This 13.1-mile race challenges runners with 519 meters of elevation gain along the rugged trails of Trione-Annadel State Park.
How long is the Annadel Half Marathon?
The Annadel Half Marathon is 21km long.
Where does the Annadel Half Marathon take place?
The Annadel Half Marathon takes place in Santa Rosa, California, USA.
What is the elevation gain of the Annadel Half Marathon?
The Annadel Half Marathon elevation gain is 519 metres, which Runna classifies as a Hilly race.
How can I prepare for the Annadel 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 Annadel 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 Annadel 10km?
How long is the Annadel 10km?
Where does the Annadel 10km take place?
What is the elevation gain of the Annadel 10km?
How can I prepare for the Annadel 10km?
How do I choose the right training plan for the Annadel 10km?
The Annadel 10K, hosted by Annadel Half Marathon, takes place on April 6, 2025, at Trione-Annadel State Park in Santa Rosa, California. This 6.2-mile course offers 176 meters of elevation gain, blending technical trails with breathtaking natural beauty.
The Annadel 10km is 10km long.
The Annadel 10km takes place in Santa Rosa, California, USA.
The Annadel 10km elevation gain is 176 metres, which Runna classifies as a Moderate 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 Annadel 10km?
The Annadel 10K, hosted by Annadel Half Marathon, takes place on April 6, 2025, at Trione-Annadel State Park in Santa Rosa, California. This 6.2-mile course offers 176 meters of elevation gain, blending technical trails with breathtaking natural beauty.
How long is the Annadel 10km?
The Annadel 10km is 10km long.
Where does the Annadel 10km take place?
The Annadel 10km takes place in Santa Rosa, California, USA.
What is the elevation gain of the Annadel 10km?
The Annadel 10km elevation gain is 176 metres, which Runna classifies as a Moderate race.
How can I prepare for the Annadel 10km?
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 Annadel 10km?
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 Annadel 5km?
How long is the Annadel 5km?
Where does the Annadel 5km take place?
What is the elevation gain of the Annadel 5km?
How can I prepare for the Annadel 5km?
How do I choose the right training plan for the Annadel 5km?
The Annadel 5K, hosted by Annadel Half Marathon, invites runners of all levels to a scenic 3.1-mile race on April 6, 2025, in Santa Rosa, California. Featuring 65 meters of elevation gain, this out-and-back course is a great introduction to trail running.
The Annadel 5km is 5km long.
The Annadel 5km takes place in Santa Rosa, California, USA.
The Annadel 5km elevation gain is 65 metres, which Runna classifies as a Moderate 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 Annadel 5km?
The Annadel 5K, hosted by Annadel Half Marathon, invites runners of all levels to a scenic 3.1-mile race on April 6, 2025, in Santa Rosa, California. Featuring 65 meters of elevation gain, this out-and-back course is a great introduction to trail running.
How long is the Annadel 5km?
The Annadel 5km is 5km long.
Where does the Annadel 5km take place?
The Annadel 5km takes place in Santa Rosa, California, USA.
What is the elevation gain of the Annadel 5km?
The Annadel 5km elevation gain is 65 metres, which Runna classifies as a Moderate race.
How can I prepare for the Annadel 5km?
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 Annadel 5km?
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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This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Annadel Half Marathon, 10k & 5k or Annadel Half Marathon. 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 Annadel Half Marathon, 10k & 5k website.












































