Taking place on Saturday, October 11, 2025, the Des Plaines River Trail Races offer an exceptional running experience along the scenic and tree-lined Des Plaines River Trail at Half Day Forest Preserve in Vernon Hills, IL. Runners can choose from four distances: Half Marathon, Marathon, 50K, and 50 Mile Ultra. The course is flat and fast, run entirely on crushed gravel, and features minimal road crossings, making it ideal for those seeking a smooth trail race or Boston Qualifier (for the marathon distance). All participants receive finisher medals, with 50 Mile finishers earning a commemorative belt buckle. The event emphasizes sustainability as a cupless race, encouraging runners to bring their own hydration systems while enjoying aid stations, a supportive race crew, and a peaceful autumn setting.
Race Date:
11 October, 2025
Scheduled for October 11, 2025, the Des Plaines River Trail 50K begins at Half Day Forest Preserve in Lake County, Illinois. Hosted by the Des Plaines River Trail Races Team, this 31.1-mile trail race offers a smooth, fast surface and peaceful nature views, making it an ideal first-time ultramarathon.
Race Date:
11 October, 2025
The Des Plaines River Trail Marathon is set for Saturday, October 11, 2025, in Lake County, Illinois, starting and finishing at Half Day Forest Preserve. Organized by the Des Plaines River Trail Races Team, this Boston Qualifier features a flat, shaded course perfect for PR attempts on crushed gravel trails.
Race Date:
11 October, 2025
The Des Plaines River Trail 50 Mile takes place on Saturday, October 11, 2025, at Half Day Forest Preserve in Lake County, Illinois. Organized by the Des Plaines River Trail Races Team, this ultra features a fast, flat crushed limestone course through forest and wetlands with generous time limits and fully stocked aid stations.
Race Date:
11 October, 2025
The Des Plaines River Trail Half Marathon takes place on October 11, 2025, in Lake County, Illinois, at Half Day Forest Preserve. Presented by the Des Plaines River Trail Races Team, this 13.1-mile out-and-back course is flat and fast, guiding runners through scenic woodland and wetland habitats.
Weather based on historical averages.
Scheduled for October 11, 2025, the Des Plaines River Trail 50K begins at Half Day Forest Preserve in Lake County, Illinois. Hosted by the Des Plaines River Trail Races Team, this 31.1-mile trail race offers a smooth, fast surface and peaceful nature views, making it an ideal first-time ultramarathon.
The Des Plaines River Trail Race 50k is 50km long.
The Des Plaines River Trail Race 50k takes place in Vernon Hills, IL, USA.
Runna classifies the Des Plaines River Trail Race 50k elevation profile as Flat.
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!
Scheduled for October 11, 2025, the Des Plaines River Trail 50K begins at Half Day Forest Preserve in Lake County, Illinois. Hosted by the Des Plaines River Trail Races Team, this 31.1-mile trail race offers a smooth, fast surface and peaceful nature views, making it an ideal first-time ultramarathon.
The Des Plaines River Trail Race 50k is 50km long.
The Des Plaines River Trail Race 50k takes place in Vernon Hills, IL, USA.
Runna classifies the Des Plaines River Trail Race 50k elevation profile as Flat.
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 Des Plaines River Trail Marathon is set for Saturday, October 11, 2025, in Lake County, Illinois, starting and finishing at Half Day Forest Preserve. Organized by the Des Plaines River Trail Races Team, this Boston Qualifier features a flat, shaded course perfect for PR attempts on crushed gravel trails.
The Des Plaines River Trail Race Marathon is 42km long.
The Des Plaines River Trail Race Marathon takes place in Vernon Hills, IL, USA.
Runna classifies the Des Plaines River Trail Race Marathon elevation profile as Flat.
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 Des Plaines River Trail Marathon is set for Saturday, October 11, 2025, in Lake County, Illinois, starting and finishing at Half Day Forest Preserve. Organized by the Des Plaines River Trail Races Team, this Boston Qualifier features a flat, shaded course perfect for PR attempts on crushed gravel trails.
The Des Plaines River Trail Race Marathon is 42km long.
The Des Plaines River Trail Race Marathon takes place in Vernon Hills, IL, USA.
Runna classifies the Des Plaines River Trail Race Marathon elevation profile as Flat.
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 Des Plaines River Trail 50 Mile takes place on Saturday, October 11, 2025, at Half Day Forest Preserve in Lake County, Illinois. Organized by the Des Plaines River Trail Races Team, this ultra features a fast, flat crushed limestone course through forest and wetlands with generous time limits and fully stocked aid stations.
The Des Plaines River Trail Race 50 Mile is 42km long.
The Des Plaines River Trail Race 50 Mile takes place in Vernon Hills, IL, USA.
Runna classifies the Des Plaines River Trail Race 50 Mile elevation profile as Flat.
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 Des Plaines River Trail 50 Mile takes place on Saturday, October 11, 2025, at Half Day Forest Preserve in Lake County, Illinois. Organized by the Des Plaines River Trail Races Team, this ultra features a fast, flat crushed limestone course through forest and wetlands with generous time limits and fully stocked aid stations.
The Des Plaines River Trail Race 50 Mile is 42km long.
The Des Plaines River Trail Race 50 Mile takes place in Vernon Hills, IL, USA.
Runna classifies the Des Plaines River Trail Race 50 Mile elevation profile as Flat.
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 Des Plaines River Trail Half Marathon takes place on October 11, 2025, in Lake County, Illinois, at Half Day Forest Preserve. Presented by the Des Plaines River Trail Races Team, this 13.1-mile out-and-back course is flat and fast, guiding runners through scenic woodland and wetland habitats.
The Des Plaines River Trail Race Half Marathon is 21km long.
The Des Plaines River Trail Race Half Marathon takes place in Vernon Hills, IL, USA.
Runna classifies the Des Plaines River Trail Race Half Marathon elevation profile as Flat.
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 Des Plaines River Trail Half Marathon takes place on October 11, 2025, in Lake County, Illinois, at Half Day Forest Preserve. Presented by the Des Plaines River Trail Races Team, this 13.1-mile out-and-back course is flat and fast, guiding runners through scenic woodland and wetland habitats.
The Des Plaines River Trail Race Half Marathon is 21km long.
The Des Plaines River Trail Race Half Marathon takes place in Vernon Hills, IL, USA.
Runna classifies the Des Plaines River Trail Race Half Marathon elevation profile as Flat.
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!
Running
Boston Marathon Qualifier
Nature
Boston Marathon Qualifier
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Des Plaines River Trail Races 2025 or Ornery Mule Racing. 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 Des Plaines River Trail Races 2025 website.