Potomac River Run Half Marathon

Potomac River Run Half Marathon 2026 Course Analysis

Potomac River Run Half Marathon is a half marathon held in Washington, United States of America. It is scheduled for Sunday 13 September 2026. The course is run on road surface with 42m of total climbing, with its high point near 51m above sea level. For registration and full race details, visit the official Potomac River Run Half Marathon website.

Elevation Profile

This is a very flat course, with only 42m 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 September, 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: Road

Potomac River Run Half Marathon is run on road surfaces, which provide the fastest and most predictable conditions for racing. Road courses allow for consistent pacing and are typically the best choice for a personal best.

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