Potomac River Run Marathon (October)

Potomac River Run Marathon (October) 2026 Course Analysis

Potomac River Run Marathon (October) is a full marathon held in Washington, United States of America. It is scheduled for Saturday 17 October 2026. The course is run on road 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 (October) 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 October, the expected race day conditions are as follows. Near-ideal running temperatures are expected, ranging from 5°C to 18°C. This temperature range is widely considered optimal for marathon performance, allowing efficient heat dissipation without cold-related issues. There is a high chance of rain (63%). Runners should prepare for wet conditions, including appropriate footwear and clothing choices.

Surface Type: Road

Potomac River Run Marathon (October) 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 Marathon (October) against other marathons to find the right race for your goals.