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Race Overview
The Silver Comet Marathon runs on the paved Silver Comet Trail, a former railroad corridor west of Atlanta in Mableton, Georgia. The out-and-back course starts near the trail's Floyd Road trailhead, heads southwest toward the Alabama state line, then finishes near the Mavell Road trailhead in Smyrna. It is USATF-certified and a Boston Marathon qualifier, marketed as flat and fast. The race has run annually for over a decade alongside a half marathon on the same morning, part of the Silver Comet Races series that also puts on a spring 10K.
WikipediaFAQ
When is the 2026 Silver Comet Marathon?
The 2026 Silver Comet Marathon will be held on Saturday October 31, 2026.
Is the Silver Comet Marathon a Boston Marathon Qualfier?
Yes, the Silver Comet Marathon is an official Boston Marathon qualifier.
What is the time limit for the Silver Comet Marathon?
The time limit for the Silver Comet Marathon is 6 hours.
Silver Comet Marathon Weather History
Silver Comet Marathon Weather Averages
Average Temp: 62°, Average Low: 53°, Average High: 72°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 54° | 57° | 61° | 65° | 67° | 69° |
| Feel | 54° | 56° | 61° | 65° | 67° | 69° |
| Rain | - | - | - | - | - | - |
| Wind | 4mph | 5mph | 5mph | 7mph | 8mph | 8mph |
| Dew | 51° | 52° | 54° | 54° | 54° | 53° |
| RunScore |  | | | | | |
Silver Comet Marathon 2025
Oct 25, 2025
Clear conditions throughout the day.
Low: 41°, High: 71°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp |  42° | 49° | 56° | 62° | 64° | 67° |
| Feel | 41° | 46° | 56° | 62° | 64° | 67° |
| Rain | - | - | - | - | - | - |
| Wind | 3mph | 6mph | 7mph | 9mph | 9mph | 9mph |
| Dew | 38° | 40° | 39° | 37° | 37° | 37° |
| RunScore | |  | | | | |
Silver Comet Marathon 2024
Oct 26, 2024
Clear conditions throughout the day.
Low: 55°, High: 84°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 55° | 58° | 64° | 72° | 77° | 82° |
| Feel | 55° | 58° | 64° | 72° | 77° | 82° |
| Rain | - | - | - | - | - | - |
| Wind | 0mph | 0mph | 0mph | 2mph | 2mph | 6mph |
| Dew | 53° | 56° | 58° | 59° | 59° | 57° |
| RunScore | | |  | | | |
Silver Comet Marathon 2023
Oct 28, 2023
Clear conditions throughout the day.
Low: 55°, High: 80°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 57° | 60° | 65° | 71° | 75° | 76° |
| Feel | 57° | 60° | 65° | 71° | 75° | 76° |
| Rain | - | - | - | - | - | - |
| Wind | 0mph | 0mph | 1mph | 2mph | 4mph | 4mph |
| Dew | 54° | 55° | 58° | 59° | 58° | 57° |
| RunScore | | | | | | |
Silver Comet Marathon 2022
Oct 29, 2022
Partly cloudy throughout the day.
Low: 52°, High: 66°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 52° |  54° | 56° | 59° | 59° | 63° |
| Feel | 52° | 54° | 56° | 59° | 59° | 63° |
| Rain | - | - | - | - | - | - |
| Wind | 7mph | 9mph | 9mph | 9mph | 11mph | 8mph |
| Dew | 46° | 48° | 50° | 51° | 52° | 52° |
| RunScore | | | | | | |
Silver Comet Marathon 2021
Oct 30, 2021
Cloudy skies throughout the day with late afternoon rain.
Low: 51°, High: 58°, Light Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 53° | 53° | 54° | 55° | 57° | 57° |
| Feel | 53° | 53° | 54° | 55° | 57° | 57° |
| Rain | - | - | - | - | - | - |
| Wind | 6mph | 6mph | 6mph | 7mph | 11mph | 12mph |
| Dew | 51° | 52° | 52° | 53° | 52° | 50° |
| RunScore | | | | | | |
Silver Comet Marathon 2019
Oct 26, 2019
Partly cloudy throughout the day with rain.
Low: 67°, High: 74°, Moderate Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 67° | 67° | 69° | 69° | 70° | 70° |
| Feel | 67° | 67° | 69° | 69° | 70° | 70° |
| Rain | light | - | - | light | - | - |
| Wind | 8mph | 10mph | 10mph | 12mph | 13mph | 8mph |
| Dew | 64° | 64° | 64° | 64° | 64° | 65° |
| RunScore | | | | | | |