MCRRC Seneca Slopes 9K
Gaithersburg, MD
Sun, Dec 6, 2026
In 119 days · Sun, Dec 6, 2026
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Sunday, December 6th, 2026
Seneca Creek State Park, Gaithersburg MD
32–46°F · low rain risk
See last 10 years
On this date: rain 2 of the last 10 years
2025
29–39°F
dry
2024
26–34°F
dry
2023
35–43°F
dry
2022
35–49°F
rain
2021
42–66°F
dry
2020
31–42°F
dry
2019
31–53°F
dry
2018
25–41°F
dry
2017
38–55°F
dry
2016
37–42°F
rain
Best months to race in Maryland →
About this race
Event Overview
Welcome to the NON-MEMBER registration page for the MCRRC Seneca Slopes 9K!
Volunteer Opportunities
This page may also be used to sign up to volunteer - please see the "volunteer" tab to the left.
Race Information
This race is part of our free, low-key series for members. Please refer to the "Low-Key Race Entry Procedure" on our website for more information.
Event Details
- Date: 2026-12-06
- Location: Seneca Creek State Park, Gaithersburg, MD
- Registration Link: Click here to register
Course map
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