*** TRAIL CONDITIONS UPDATE ON 2.20.26, READ HERE. ***

The 5K, 10K (6.55 miles), & Half Marathon courses run along the Little & Middle Patuxent River. The races start and finish at the Guilford Pratt Truss Bridge on Guilford Road in Columbia, MD. The races are a loop course along the Patuxent and Wincopin Trails. 3 miles of the course is packed gravel trail and 3 miles of the course is on natural surface trail. A very small portion of the course is on paved/sidewalk surface. 

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The course will be marked with neon pink signage on trees at or near course turns/intersections. Each runner is responsible for completing the correct course. "Following the person in front of you" may lead to running in the wrong direction. Keep an eye out for course signage at all times.

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Due to snow melting, the trail is expected to be slushy and muddy. Please be prepared for this and wear appropriate clothes and shoes. Non-slick trail or running shoes are recommended.

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The following are prohibited from the course: pets, baby joggers/strollers, in-line skates, bicycles, and any other non-official wheeled vehicles.  

 

5K course - (one loop) is 3.1 miles in length (out & back).

10K course - (one loop) is 6.55 miles in length.

Half marathon - is the 10K loop twice.

 

To view the course map, click HERE. 

To view the venue map, click HERE.​

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HALF MARATHON COURSE REQUIREMENT

All runners in the Half Marathon will reach mile 6.55 (start 2nd loop) within 2 hours after the start of the last wave (12:15 PM). Runners that have not completed this distance within 2 hours will not be permitted to continue on the course. 

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WATER STATIONS

There are NO water stations on the 5K course.

Participants are encouraged to carry their own hydration.

 

There are two water stations on the 6.55 mile looped course. 

Water Station # 1 at mile 1.5

(all runners will pass through this station twice each loop)

Water Station # 2 at mile 6

(all runners will pass through this station twice each loop)

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BATHROOMS

Porta-potties will be stationed at the start/finish line and at the water station at mile 1.5.