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The JFK 50 Mile is America’s oldest ultramarathon, featuring a diverse point-to-point course through the Appalachian Trail, C&O Canal towpath, and rolling country roads.
Course Highlights
The JFK 50 Mile course is renowned for its diverse and challenging terrain, offering a point-to-point “horse-shoe” journey through Maryland’s scenic landscapes. The race begins in downtown Boonsboro at an elevation of 570 feet. The initial 5.5 miles involve a steady climb, gaining over 1,100 feet as runners transition from paved roads to the legendary Appalachian Trail (AT). This 13-mile section of the AT is the most technical part of the course, characterized by rocky paths and a steep descent through switchbacks that drop over 1,000 feet toward the Potomac River.
Following the mountain section, runners join the C&O Canal towpath for a 26.3-mile stretch. This portion is almost entirely flat and unpaved, providing a significant mental and physical shift from the technical trails of the ridge. The path follows the river, offering serene views and a consistent surface for maintaining pace. The final 8.4 miles take participants onto gently rolling paved country roads, leading to the finish line at Springfield Middle School in Williamsport, situated at 452 feet above sea level.
Race Details
As America’s oldest ultramarathon, the JFK 50 Mile has been held annually since 1963. The event starts promptly at 6:30 a.m. with a strict mass start; the starting line closes just five minutes later at 6:35 a.m. Runners are given a 13-hour time limit to complete the 50.2-mile course, with specific cut-off times enforced at various aid stations to ensure safety and logistical coordination. For example, participants must reach the 15.5-mile Weverton Aid Station by 11:30 a.m. and the 41.8-mile Dam #4 mark by 5:30 p.m.
The race is highly organized, featuring at least 14 fully stocked aid stations providing water, electrolyte drinks, food, and basic medical supplies. Due to the technical nature of the Appalachian Trail section, personal listening devices are strictly prohibited to ensure runners can hear one another and race officials. Bag transport is provided from the start in Boonsboro to the finish in Williamsport, allowing runners to have fresh clothes and gear waiting for them. The event is hosted by the Cumberland Valley Athletic Club and remains a premier fixture on the ultra-running calendar.
Why Runners Love It
Runners are drawn to the JFK 50 Mile for its rich history and the prestige of participating in a race that originated as part of President John F. Kennedy’s initiative to improve national physical fitness. The “Kennedy Challenge” originally tasked military personnel with covering 50 miles in 20 hours, and while the time limit has tightened, the spirit of endurance remains. The race has a strong military connection, with a dedicated Military Team Competition for the Kennedy Cup, adding a layer of camaraderie and tradition to the event.
The variety of the course is another major draw. Very few races offer the combination of technical mountain single-track, flat river-side towpaths, and scenic road running in a single event. This diversity requires runners to be well-rounded and adapt their strategy throughout the day. The community support is exceptional, with local residents and volunteers creating a festive atmosphere at aid stations and the finish line. Every finisher within the time limit receives a uniquely designed medallion, a symbol of joining a long line of endurance athletes who have conquered one of the most storied races in the United States.
At a Glance
- Location: Boonsboro, MD — United States
- Next Date: 2026-11-21
- Distances: 50.2 Miles
- Start Time: 06:30
Register & Learn More
Visit the official race website for entry details, course maps, and registration: https://www.jfk50mile.org
The JFK 50 Mile is America’s oldest ultramarathon, featuring a diverse point-to-point course through the Appalachian Trail, C&O Canal towpath, and rolling country roads.
Course Highlights
The JFK 50 Mile course is renowned for its diverse and challenging terrain, offering a point-to-point “horse-shoe” journey through Maryland’s scenic landscapes. The race begins in downtown Boonsboro at an elevation of 570 feet. The initial 5.5 miles involve a steady climb, gaining over 1,100 feet as runners transition from paved roads to the legendary Appalachian Trail (AT). This 13-mile section of the AT is the most technical part of the course, characterized by rocky paths and a steep descent through switchbacks that drop over 1,000 feet toward the Potomac River.
Following the mountain section, runners join the C&O Canal towpath for a 26.3-mile stretch. This portion is almost entirely flat and unpaved, providing a significant mental and physical shift from the technical trails of the ridge. The path follows the river, offering serene views and a consistent surface for maintaining pace. The final 8.4 miles take participants onto gently rolling paved country roads, leading to the finish line at Springfield Middle School in Williamsport, situated at 452 feet above sea level.
Race Details
As America’s oldest ultramarathon, the JFK 50 Mile has been held annually since 1963. The event starts promptly at 6:30 a.m. with a strict mass start; the starting line closes just five minutes later at 6:35 a.m. Runners are given a 13-hour time limit to complete the 50.2-mile course, with specific cut-off times enforced at various aid stations to ensure safety and logistical coordination. For example, participants must reach the 15.5-mile Weverton Aid Station by 11:30 a.m. and the 41.8-mile Dam #4 mark by 5:30 p.m.
The race is highly organized, featuring at least 14 fully stocked aid stations providing water, electrolyte drinks, food, and basic medical supplies. Due to the technical nature of the Appalachian Trail section, personal listening devices are strictly prohibited to ensure runners can hear one another and race officials. Bag transport is provided from the start in Boonsboro to the finish in Williamsport, allowing runners to have fresh clothes and gear waiting for them. The event is hosted by the Cumberland Valley Athletic Club and remains a premier fixture on the ultra-running calendar.
Why Runners Love It
Runners are drawn to the JFK 50 Mile for its rich history and the prestige of participating in a race that originated as part of President John F. Kennedy’s initiative to improve national physical fitness. The “Kennedy Challenge” originally tasked military personnel with covering 50 miles in 20 hours, and while the time limit has tightened, the spirit of endurance remains. The race has a strong military connection, with a dedicated Military Team Competition for the Kennedy Cup, adding a layer of camaraderie and tradition to the event.
The variety of the course is another major draw. Very few races offer the combination of technical mountain single-track, flat river-side towpaths, and scenic road running in a single event. This diversity requires runners to be well-rounded and adapt their strategy throughout the day. The community support is exceptional, with local residents and volunteers creating a festive atmosphere at aid stations and the finish line. Every finisher within the time limit receives a uniquely designed medallion, a symbol of joining a long line of endurance athletes who have conquered one of the most storied races in the United States.
At a Glance
- Location: Boonsboro, MD — United States
- Next Date: 2026-11-21
- Distances: 50.2 Miles
- Start Time: 06:30
Register & Learn More
Visit the official race website for entry details, course maps, and registration: https://www.jfk50mile.org