Mendon Trail Run

Since 1994, The Rochester Orienteering Club has offered The Mendon Trail Run. The Mendon Trail Run raises funds to support the activities of the Club, which is one of the most active Orienteering Clubs in the US (to learn more, or to attend one of our events, see https://roc.us.orienteering.org/).

The trail run features distances of 10K, 20K, 30K and 50K on the east side of beautiful Mendon Ponds Park.

This year's event will be on Saturday, Oct. 25, 2025. The 50K starts at 8:00 am; the other distances start at 10:00 am.

Aid station for 20k, 30k and 50k runners about 3.5 miles into the loop, plus one water stop in the S/F area.

Course Description

10 km loop course entirely on trails or grassy fields. The course will be marked, turns marked at trail junctions, and traffic cones at the road crossing. The course has many rolling hills. Nearly all of the course is runnable (not particularly technical), although there is one fairly short rocky downhill section where the footing can be a little tricky. Estimated 1000 feet of climb per 10k loop. It should be noted that the total elevation difference between low point and high point on the course is only 150 feet; it should also be noted that the course is essentially never flat! There will be two crossings of park roads per loop. Runners are responsible for their own safety when crossing roads.