=PR= Races: Monster Mash Dash 5K & 1Mile
Available distances
About
The Monster Mash Dash takes place in McLean, in Fairfax County, Virginia, pairing a competitive 5K with a fun, family-friendly 1-mile run. Runners of all ages are welcome, and participants are encouraged to dress up in Halloween costumes.
The race doubles as a community event, with proceeds and participation supporting Franklin Sherman Elementary School.
Prepare for =PR= Races: Monster Mash Dash 5K & 1Mile with RunRun
An AI-generated training plan, adjusted every week based on your real sessions. Built around your goal, current level and race date.
- Personalized plan based on your VO2max, history and weekly availability
- Strava and Garmin sync: your sessions are analyzed and the plan adapts
- Target paces, long runs, key sessions: everything is calculated for race day
Races nearby
Other upcoming races around McLean.
Historic Drawbridge Half
Nov 7, 2026 · Falls Church, VA · 4 mi away
26.2 mi · 13.1 mi · 3.1 mi
Friends of Montessori Education 5K + 1 Mile Fun Run
Nov 1, 2026 · Arlington, VA · 5 mi away
3.1 mi · 1 mi
Tunnel Hill 100 & 50 mile runs
Nov 9, 2026 · Vienna, VA · 5 mi away
100 mi · 50 mi
Marine Corps Marathon
Oct 25, 2026 · Arlington, VA · 6 mi away
26.2 mi · 10 mi
Inova Battle of the Branches 5K
Nov 8, 2026 · Fairfax, VA · 6 mi away
3.1 mi
SOMERSET ELEMENTARY Back-to-School Classic 8K
Oct 25, 2026 · Silver Spring, MD · 7 mi away
5 mi · 1.2 mi