Race Discovery
Headwaters Monster Mash Fun Run Dash
Headwaters Monster Mash Fun Run Dash logo

Headwaters Monster Mash Fun Run Dash

Washington, Virginia, United States View on map
Oct 03, 2026 (America/New_York local time)
Running

About this race

Join Headwaters, the Rappahannock County Public Education Foundation, for a morning of fun, wellness, and community! Our 5K course offers a great way to support the students and teachers of Rappahannock County Public Schools (RCPS), with all registration fees going directly to benefit RCPS. 

We won't be using official timing, so you're free to run, walk, or dash at your own pace! Gather your friends and family, and remember to dress up in your best costume or fall attire for a chance to win a prize!

#MonsterMashFunRunDash

Pick your distance

Running

5K Fun Run

Oct 03, 2026 5K 10:00 AM
$25.00
Closed

Typical race-day weather

Based on 2 years of Open-Meteo archive data for this event's race dates in Washington, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 12.3° / Maximum temperature (race-week average) 23.6°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 11.9° / Maximum feels like — heat index / wind chill (race-week average) 24.5°
Peak wind (km/h)
Strongest wind of the day (race-week average)
13.0
Precip (mm)
Precipitation over the day (race-week average)
1.6mm
Humidity
Mean relative humidity (race-week average)
72.7%
Sunrise
Sunrise at the start line on October 3, 2026 (EDT)
Sunset
Sunset at the start line on October 3, 2026 (EDT)
Daylight
Hours between sunrise and sunset on race day
11h 42m

The sun rises at 7:10 AM and sets at 6:52 PM local time (EDT) in Washington on October 3, 2026 — 11h 42m of daylight.

Course

No course map published yet.

The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.

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Other races near Washington

Different organizers, within 40 miles, in the next three months

Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.

  • Entries, prices, waves and inclusions — the event's official registration page
  • Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
  • Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
  • Comparisons and counts — Race Discovery calendar, 1 Washington event

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