Organized by Troy’s California Trail Runs, the Fall edition is a full-day trail festival centered inside Sly Park Recreation Area, giving runners route choices from short family-friendly options up to a challenging 50K. Most distances start together in the morning (typical start 8:00 AM, with check-in and race briefing beforehand) and follow scenic single-track around Jenkinson Lake through pine forest and rolling foothills. Expect plenty of shade, “buttery” horse-trail tread, some technical footing on tighter sections, and well-marked loops that suit both experienced trail runners and newcomers. Logistics (parking/aid/check-in) are run from the park group area; consult the event page for exact start/parking instructions and any entry limits.
Races
50 km
Marathon
17 miles
Half Marathon
8 miles
10 km
5 km
Race Date:
25 October, 2025
Also under Troy’s California Trail Runs, the 50K Ultra run on October 25, 2025 in Pollock Pines, CA, features the greatest elevation gain of the event at approximately 1,524 meters, covering the full looped terrain around Jenkinson Lake with steeper climbs and long trail sections.
Race Date:
25 October, 2025
Organized by Troy’s California Trail Runs, the Trail Marathon on October 25, 2025, at Sly Park Recreation Area includes about 1,229 meters of elevation gain, with a course made from multiple loops around the lake and additional trail segments that test endurance on rolling steep-ish sections.
Race Date:
25 October, 2025
The 17-Mile race is staged on October 25, 2025 by the same organizer at Sly Park, CA, carrying approximately 774 meters of elevation gain with two loops (one hiking trail + one horse trail) combining rolling terrain and technical trail segments.
Race Date:
25 October, 2025
Also presented by Troy’s California Trail Runs on October 25, 2025, the Half Marathon at Sly Park offers roughly 530 meters of total ascent over trails around Jenkinson Lake plus additional out-and-back sections, set in the scenic El Dorado National Forest.
Race Date:
25 October, 2025
The 8-Mile race, under Troy’s California Trail Runs on October 25, 2025, in Pollock Pines, California, includes around 300 meters of elevation gain as it loops once around Jenkinson Lake with some rolling hills and trail shortcuts.
Race Date:
25 October, 2025
Also hosted by Troy’s California Trail Runs, the 10K takes place on October 25, 2025 at Sly Park, CA, featuring approximately 264 meters of climbing over a mix of hiking trails and horse trails with mild technical sections.
Race Date:
25 October, 2025
Organized by Troy’s California Trail Runs, the 5K at Trail Run at Sly Park (Fall) is held on Saturday, October 25, 2025 at Sly Park Recreation Area, Pollock Pines, California, offering about 164 meters of elevation gain on a shaded rolling single-track course.
Weather based on historical averages.
FAQs
What is the Trail Run at Sly Park 50K?
How long is the Trail Run at Sly Park 50K?
Where does the Trail Run at Sly Park 50K take place?
What is the elevation gain of the Trail Run at Sly Park 50K?
How can I prepare for the Trail Run at Sly Park 50K?
How do I choose the right training plan for the Trail Run at Sly Park 50K?
Also under Troy’s California Trail Runs, the 50K Ultra run on October 25, 2025 in Pollock Pines, CA, features the greatest elevation gain of the event at approximately 1,524 meters, covering the full looped terrain around Jenkinson Lake with steeper climbs and long trail sections.
The Trail Run at Sly Park 50K is 50km long.
The Trail Run at Sly Park 50K takes place in Pollock Pines, CA, USA.
The Trail Run at Sly Park 50K elevation gain is 1524 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!
What is the Trail Run at Sly Park 50K?
Also under Troy’s California Trail Runs, the 50K Ultra run on October 25, 2025 in Pollock Pines, CA, features the greatest elevation gain of the event at approximately 1,524 meters, covering the full looped terrain around Jenkinson Lake with steeper climbs and long trail sections.
How long is the Trail Run at Sly Park 50K?
The Trail Run at Sly Park 50K is 50km long.
Where does the Trail Run at Sly Park 50K take place?
The Trail Run at Sly Park 50K takes place in Pollock Pines, CA, USA.
What is the elevation gain of the Trail Run at Sly Park 50K?
The Trail Run at Sly Park 50K elevation gain is 1524 meters, which Runna classifies as a Hilly race.
How can I prepare for the Trail Run at Sly Park 50K?
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!
How do I choose the right training plan for the Trail Run at Sly Park 50K?
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!
What is the Trail Run at Sly Park Marathon?
How long is the Trail Run at Sly Park Marathon?
Where does the Trail Run at Sly Park Marathon take place?
What is the elevation gain of the Trail Run at Sly Park Marathon?
How can I prepare for the Trail Run at Sly Park Marathon?
How do I choose the right training plan for the Trail Run at Sly Park Marathon?
Organized by Troy’s California Trail Runs, the Trail Marathon on October 25, 2025, at Sly Park Recreation Area includes about 1,229 meters of elevation gain, with a course made from multiple loops around the lake and additional trail segments that test endurance on rolling steep-ish sections.
The Trail Run at Sly Park Marathon is 42km long.
The Trail Run at Sly Park Marathon takes place in Pollock Pines, CA, USA.
The Trail Run at Sly Park Marathon elevation gain is 1229 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!
What is the Trail Run at Sly Park Marathon?
Organized by Troy’s California Trail Runs, the Trail Marathon on October 25, 2025, at Sly Park Recreation Area includes about 1,229 meters of elevation gain, with a course made from multiple loops around the lake and additional trail segments that test endurance on rolling steep-ish sections.
How long is the Trail Run at Sly Park Marathon?
The Trail Run at Sly Park Marathon is 42km long.
Where does the Trail Run at Sly Park Marathon take place?
The Trail Run at Sly Park Marathon takes place in Pollock Pines, CA, USA.
What is the elevation gain of the Trail Run at Sly Park Marathon?
The Trail Run at Sly Park Marathon elevation gain is 1229 meters, which Runna classifies as a Hilly race.
How can I prepare for the Trail Run at Sly Park Marathon?
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!
How do I choose the right training plan for the Trail Run at Sly Park Marathon?
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!
What is the Trail Run at Sly Park 17 Mile?
How long is the Trail Run at Sly Park 17 Mile?
Where does the Trail Run at Sly Park 17 Mile take place?
What is the elevation gain of the Trail Run at Sly Park 17 Mile?
How can I prepare for the Trail Run at Sly Park 17 Mile?
How do I choose the right training plan for the Trail Run at Sly Park 17 Mile?
The 17-Mile race is staged on October 25, 2025 by the same organizer at Sly Park, CA, carrying approximately 774 meters of elevation gain with two loops (one hiking trail + one horse trail) combining rolling terrain and technical trail segments.
The Trail Run at Sly Park 17 Mile is 27km long.
The Trail Run at Sly Park 17 Mile takes place in Pollock Pines, CA, USA.
The Trail Run at Sly Park 17 Mile elevation gain is 774 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!
What is the Trail Run at Sly Park 17 Mile?
The 17-Mile race is staged on October 25, 2025 by the same organizer at Sly Park, CA, carrying approximately 774 meters of elevation gain with two loops (one hiking trail + one horse trail) combining rolling terrain and technical trail segments.
How long is the Trail Run at Sly Park 17 Mile?
The Trail Run at Sly Park 17 Mile is 27km long.
Where does the Trail Run at Sly Park 17 Mile take place?
The Trail Run at Sly Park 17 Mile takes place in Pollock Pines, CA, USA.
What is the elevation gain of the Trail Run at Sly Park 17 Mile?
The Trail Run at Sly Park 17 Mile elevation gain is 774 meters, which Runna classifies as a Hilly race.
How can I prepare for the Trail Run at Sly Park 17 Mile?
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!
How do I choose the right training plan for the Trail Run at Sly Park 17 Mile?
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!
What is the Trail Run at Sly Park Half Marathon?
How long is the Trail Run at Sly Park Half Marathon?
Where does the Trail Run at Sly Park Half Marathon take place?
What is the elevation gain of the Trail Run at Sly Park Half Marathon?
How can I prepare for the Trail Run at Sly Park Half Marathon?
How do I choose the right training plan for the Trail Run at Sly Park Half Marathon?
Also presented by Troy’s California Trail Runs on October 25, 2025, the Half Marathon at Sly Park offers roughly 530 meters of total ascent over trails around Jenkinson Lake plus additional out-and-back sections, set in the scenic El Dorado National Forest.
The Trail Run at Sly Park Half Marathon is 21km long.
The Trail Run at Sly Park Half Marathon takes place in Pollock Pines, CA, USA.
The Trail Run at Sly Park Half Marathon elevation gain is 530 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!
What is the Trail Run at Sly Park Half Marathon?
Also presented by Troy’s California Trail Runs on October 25, 2025, the Half Marathon at Sly Park offers roughly 530 meters of total ascent over trails around Jenkinson Lake plus additional out-and-back sections, set in the scenic El Dorado National Forest.
How long is the Trail Run at Sly Park Half Marathon?
The Trail Run at Sly Park Half Marathon is 21km long.
Where does the Trail Run at Sly Park Half Marathon take place?
The Trail Run at Sly Park Half Marathon takes place in Pollock Pines, CA, USA.
What is the elevation gain of the Trail Run at Sly Park Half Marathon?
The Trail Run at Sly Park Half Marathon elevation gain is 530 meters, which Runna classifies as a Hilly race.
How can I prepare for the Trail Run at Sly Park Half Marathon?
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!
How do I choose the right training plan for the Trail Run at Sly Park Half Marathon?
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!
What is the Trail Run at Sly Park 8 Mile?
How long is the Trail Run at Sly Park 8 Mile?
Where does the Trail Run at Sly Park 8 Mile take place?
What is the elevation gain of the Trail Run at Sly Park 8 Mile?
How can I prepare for the Trail Run at Sly Park 8 Mile?
How do I choose the right training plan for the Trail Run at Sly Park 8 Mile?
The 8-Mile race, under Troy’s California Trail Runs on October 25, 2025, in Pollock Pines, California, includes around 300 meters of elevation gain as it loops once around Jenkinson Lake with some rolling hills and trail shortcuts.
The Trail Run at Sly Park 8 Mile is 13km long.
The Trail Run at Sly Park 8 Mile takes place in Pollock Pines, CA, USA.
The Trail Run at Sly Park 8 Mile elevation gain is 300 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!
What is the Trail Run at Sly Park 8 Mile?
The 8-Mile race, under Troy’s California Trail Runs on October 25, 2025, in Pollock Pines, California, includes around 300 meters of elevation gain as it loops once around Jenkinson Lake with some rolling hills and trail shortcuts.
How long is the Trail Run at Sly Park 8 Mile?
The Trail Run at Sly Park 8 Mile is 13km long.
Where does the Trail Run at Sly Park 8 Mile take place?
The Trail Run at Sly Park 8 Mile takes place in Pollock Pines, CA, USA.
What is the elevation gain of the Trail Run at Sly Park 8 Mile?
The Trail Run at Sly Park 8 Mile elevation gain is 300 meters, which Runna classifies as a Hilly race.
How can I prepare for the Trail Run at Sly Park 8 Mile?
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!
How do I choose the right training plan for the Trail Run at Sly Park 8 Mile?
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!
What is the Trail Run at Sly Park 10K?
How long is the Trail Run at Sly Park 10K?
Where does the Trail Run at Sly Park 10K take place?
What is the elevation gain of the Trail Run at Sly Park 10K?
How can I prepare for the Trail Run at Sly Park 10K?
How do I choose the right training plan for the Trail Run at Sly Park 10K?
Also hosted by Troy’s California Trail Runs, the 10K takes place on October 25, 2025 at Sly Park, CA, featuring approximately 264 meters of climbing over a mix of hiking trails and horse trails with mild technical sections.
The Trail Run at Sly Park 10K is 10km long.
The Trail Run at Sly Park 10K takes place in Pollock Pines, CA, USA.
The Trail Run at Sly Park 10K elevation gain is 264 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!
What is the Trail Run at Sly Park 10K?
Also hosted by Troy’s California Trail Runs, the 10K takes place on October 25, 2025 at Sly Park, CA, featuring approximately 264 meters of climbing over a mix of hiking trails and horse trails with mild technical sections.
How long is the Trail Run at Sly Park 10K?
The Trail Run at Sly Park 10K is 10km long.
Where does the Trail Run at Sly Park 10K take place?
The Trail Run at Sly Park 10K takes place in Pollock Pines, CA, USA.
What is the elevation gain of the Trail Run at Sly Park 10K?
The Trail Run at Sly Park 10K elevation gain is 264 meters, which Runna classifies as a Hilly race.
How can I prepare for the Trail Run at Sly Park 10K?
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!
How do I choose the right training plan for the Trail Run at Sly Park 10K?
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!
What is the Trail Run at Sly Park 5K?
How long is the Trail Run at Sly Park 5K?
Where does the Trail Run at Sly Park 5K take place?
What is the elevation gain of the Trail Run at Sly Park 5K?
How can I prepare for the Trail Run at Sly Park 5K?
How do I choose the right training plan for the Trail Run at Sly Park 5K?
Organized by Troy’s California Trail Runs, the 5K at Trail Run at Sly Park (Fall) is held on Saturday, October 25, 2025 at Sly Park Recreation Area, Pollock Pines, California, offering about 164 meters of elevation gain on a shaded rolling single-track course.
The Trail Run at Sly Park 5K is 5km long.
The Trail Run at Sly Park 5K takes place in Pollock Pines, CA, USA.
The Trail Run at Sly Park 5K elevation gain is 164 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!
What is the Trail Run at Sly Park 5K?
Organized by Troy’s California Trail Runs, the 5K at Trail Run at Sly Park (Fall) is held on Saturday, October 25, 2025 at Sly Park Recreation Area, Pollock Pines, California, offering about 164 meters of elevation gain on a shaded rolling single-track course.
How long is the Trail Run at Sly Park 5K?
The Trail Run at Sly Park 5K is 5km long.
Where does the Trail Run at Sly Park 5K take place?
The Trail Run at Sly Park 5K takes place in Pollock Pines, CA, USA.
What is the elevation gain of the Trail Run at Sly Park 5K?
The Trail Run at Sly Park 5K elevation gain is 164 meters, which Runna classifies as a Hilly race.
How can I prepare for the Trail Run at Sly Park 5K?
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!
How do I choose the right training plan for the Trail Run at Sly Park 5K?
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!
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Sport:
Running
Tags:
Nature
Park
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Trail Run at Sly Park (Fall) 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 Trail Run at Sly Park (Fall) website.
