Potomac River Run Marathon

Potomac River Run Marathon 2027 Course Analysis

Potomac River Run Marathon is a full marathon held in Washington, United States of America. It is scheduled for Sunday 2 May 2027. The course is run on mixed surface with 67m of total climbing, with its high point near 35m above sea level. For registration and full race details, visit the official Potomac River Run Marathon website.

Elevation Profile

This is a very flat course, with only 67m of total climbing and little change in altitude throughout. Flat profiles let you hold an even pace from start to finish, which makes this a fast, PB-friendly race.

Expected Race Day Weather

Based on historical weather data for May, the expected race day conditions are as follows. Hot conditions are expected, with temperatures between 20°C and 29°C. Heat is one of the biggest performance factors in distance running - for every degree above 15°C, finish times can slow by roughly 1-2%. Extra hydration and a conservative start are strongly recommended. There is a moderate chance of rain (23%). Runners may want to prepare for wet conditions but shouldn't expect persistent rainfall.

Surface Type: Mixed

Potomac River Run Marathon features a mixed-surface course, combining sections of road with unpaved terrain such as gravel paths, parkland, or boardwalks. Mixed courses add variety but also introduce some unpredictability in footing. Expect slightly slower times than on a pure road course, and road-trail hybrid shoes may be the best footwear option.

Looking for an easier marathon or a tougher challenge? You can also compare Potomac River Run Marathon against other marathons to find the right race for your goals.