Race Discovery
4K Trail Run
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2021 - 4K Trail Run

Boston, Massachusetts, United States View on map
Sep 22, 2021 – Sep 30, 2021 (America/New_York local time)
Running

2021 distances

Running

Virtual Runner

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Sep 22, 2021 4K 9:00 AM
$45.00
Closed

On Island Wednesday 4K Trail Run

Sep 22, 2021 4K 4:00 PM
Free
Closed

On Island Thursday 4K Trail Run

Sep 22, 2021 4K 4:00 PM
Free
Closed

Race-day weather

Conditions on September 22, 2021 — historical Open-Meteo data.

Temp (°C)
Minimum temperature (recorded on race day) 15.0° / Maximum temperature (recorded on race day) 22.0°
Feels Like (°C)
Minimum feels like — heat index / wind chill (recorded on race day) 14.5° / Maximum feels like — heat index / wind chill (recorded on race day) 22.0°
Peak wind (km/h)
Strongest wind of the day (recorded on race day)
19.6
Precip (mm)
Precipitation over the day (recorded on race day)
3.6mm
Humidity
Mean relative humidity (recorded on race day)
77.6%
Sunrise
Sunrise at the start line on September 22, 2021 (EDT)
Sunset
Sunset at the start line on September 22, 2021 (EDT)
Daylight
Hours between sunrise and sunset on race day
12h 09m

The sun rises at 6:32 AM and sets at 6:41 PM local time (EDT) in Boston on September 22, 2021 — 12h 09m 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.

Reviews

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2021 results — 4K Trail Run

Virtual Runner · 153 finishers

View all results
Leading finishers of the 2021 4K Trail Run
Place Name Time Pace
1 Jon Dugas 15:32 6:15 /mi
2 Tara Dooley 16:54 6:48 /mi
3 Chuck Gallagher 16:54 6:48 /mi
4 Ali Montacer 16:59 6:50 /mi
5 Wes Gardner 16:59 6:50 /mi

Every finisher is on the results page, filterable by distance, gender and age group.

Other races near Boston

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

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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, 52 Boston events

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