Race Discovery
Silver Comet Half & Full Marathon
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Silver Comet Half & Full Marathon

Mableton, Georgia, United States View on map
Oct 31, 2026 (America/New_York local time)
Running

About this race

The Silver Comet Half Marathon & Full Marathon are out and back USATF Certified races held entirely on the beautiful Silver Comet Trail just outside Atlanta in Mableton Georgia the last Saturday of each October.  The marathon is a Boston Qualifier event.  

Our grass root events are perfect for first timers or competitive runners seeking PRs.  The Silver Comet Trail is beautiful and provides a flat and fast course.

Please find more information at SilverCometRaces.com 

Runners may also be interested in the Silver Comet 10K on the 2nd Saturday of March every year - continues to be the flattest and the fastest 10K in the Atlanta metro area! Come snag your best AJC Peachtree Road Race qualifying time!  This is a point to point race starting from 4875 Floyd Road, Mableton GA to Finish at Silver Comet Trailhead 4573 Mavell Road, Smyrna GA 

Pick your distance

Running

26th Annual Silver Comet Half Marathon

Oct 31, 2026 Half-Marathon 7:45 AM
$95.00
Open

15th Annual Silver Comet Marathon

Oct 31, 2026 Marathon 7:15 AM
$130.00
Open

Typical race-day weather

Based on 1 year of Open-Meteo archive data for this event's race dates in Mableton, plus the 3 days either side.

Temp (°C)
Minimum temperature (race-week average) 8.2° / Maximum temperature (race-week average) 20.5°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-week average) 5.7° / Maximum feels like — heat index / wind chill (race-week average) 20.5°
Peak wind (km/h)
Strongest wind of the day (race-week average)
15.0
Precip (mm)
Precipitation over the day (race-week average)
0.0mm
Humidity
Mean relative humidity (race-week average)
53.0%
Sunrise
Sunrise at the start line on October 31, 2026 (EDT)
Sunset
Sunset at the start line on October 31, 2026 (EDT)
Daylight
Hours between sunrise and sunset on race day
10h 50m

The sun rises at 7:56 AM and sets at 6:46 PM local time (EDT) in Mableton on October 31, 2026 — 10h 50m 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 Mableton

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, 8 Mableton events

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