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Race Overview
In this race, you will experience some of Montgomery County's finest single-track trails as you meander along beautiful Seneca Creek in Seneca State Park. This scenic trail is muddy, rocky, rooty, hilly and steep in sections with no major elevation gain/loss. This is a challenging, but beautiful run for all!
The Seneca Creek Greenway Trail Marathon and 50K is a low-key, low-priced and fun filled event along the beautiful Seneca Creek Greenway Trail and parallel trails. Marathon and 50K participants will have the option to choose their final distance when returning to the finish (either stop for the "marathon" or keep going for the 50K.
WikipediaThe Seneca Creek Greenway Trail Marathon and 50K is a low-key, low-priced and fun filled event along the beautiful Seneca Creek Greenway Trail and parallel trails. Marathon and 50K participants will have the option to choose their final distance when returning to the finish (either stop for the "marathon" or keep going for the 50K.
FAQ
When is the 2027 Seneca Creek Greenway Trail Marathon?
The 2027 Seneca Creek Greenway Trail Marathon will be held on Saturday March 6, 2027.
Is the Seneca Creek Greenway Trail Marathon a Boston Marathon Qualfier?
No, the Seneca Creek Greenway Trail Marathon is NOT a Boston Marathon qualifier.
What is the time limit for the Seneca Creek Greenway Trail Marathon?
The time limit for the Seneca Creek Greenway Trail Marathon is 9.75 hours.
Seneca Creek Greenway Trail Marathon Weather History
Seneca Creek Greenway Trail Marathon Weather Averages
Average Temp: 43°, Average Low: 35°, Average High: 52°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 38° | 40° | 43° | 45° | 47° | 48° | 50° | 51° | 50° | 50° |
| Feel | 33° | 35° | 37° | 41° | 43° | 45° | 47° | 47° | 47° | 47° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 8mph | 9mph | 10mph | 10mph | 10mph | 11mph | 11mph | 12mph | 11mph | 10mph |
| Dew | 29° | 29° | 29° | 29° | 29° | 29° | 29° | 28° | 28° | 28° |
| RunScore |  | | | | | | | | |  |
Seneca Creek Greenway Trail Marathon 2026
Mar 7, 2026
Partly cloudy throughout the day.
Low: 42°, High: 62°, Light Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp |  42° |  43° | 45° | 47° | 49° | 51° | 51° | 53° | 55° |  59° |
| Feel | 38° | 39° | 40° | 43° | 46° | 51° | 51° | 53° | 55° | 59° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 7mph | 7mph | 8mph | 8mph | 6mph | 7mph | 6mph | 9mph | 9mph | 8mph |
| Dew | 42° | 43° | 44° | 46° | 46° | 49° | 50° | 52° | 53° | 54° |
| RunScore | | | | |  | | | | | |
Seneca Creek Greenway Trail Marathon 2025
Mar 8, 2025
Partly cloudy throughout the day.
Low: 34°, High: 48°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 43° | 44° | 44° | 44° | 46° | 47° | 48° | 47° | 46° | 45° |
| Feel | 35° | 38° | 38° | 40° | 42° | 41° | 42° | 40° | 39° | 38° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 14mph | 14mph | 13mph | 8mph | 9mph | 14mph | 14mph | 21mph | 19mph | 14mph |
| Dew | 32° | 30° | 29° | 25° | 23° | 22° | 19° | 18° | 19° | 18° |
| RunScore |  | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2024
Mar 9, 2024
Cloudy skies throughout the day with rain.
Low: 40°, High: 48°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 40° | 40° | 41° | 42° |  43° | 44° | 46° | 47° | 48° | 48° |
| Feel | 35° | 35° | 36° | 38° | 38° | 42° | 46° | 43° | 45° | 48° |
| Rain | light | light | light | light | light | light | light | light | light | moderate |
| Wind | 7mph | 8mph | 7mph | 7mph | 9mph | 5mph | 1mph | 7mph | 5mph | 2mph |
| Dew | 39° | 40° | 41° | 42° | 43° | 44° | 45° | 46° | 47° | 47° |
| RunScore | | | | | | | | | |  |
Seneca Creek Greenway Trail Marathon 2023
Mar 11, 2023
Cloudy skies throughout the day.
Low: 35°, High: 45°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 36° | 37° | 38° | 41° | 45° | 44° | 45° | 43° | 42° | 42° |
| Feel | 27° | 28° | 29° | 34° | 39° | 38° | 40° | 38° | 37° | 38° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 15mph | 17mph | 16mph | 12mph | 12mph | 13mph | 9mph | 10mph | 10mph | 6mph |
| Dew | 25° | 25° | 25° | 27° | 28° | 27° | 28° | 27° | 26° | 26° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2021
Mar 13, 2021
Clear conditions throughout the day.
Low: 40°, High: 57°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 42° | 43° | 45° | 48° | 49° | 52° | 53° | 55° | 56° | 57° |
| Feel | 38° | 38° | 40° | 46° | 47° | 52° | 53° | 55° | 56° | 57° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 7mph | 9mph | 10mph | 4mph | 6mph | 3mph | 10mph | 8mph | 7mph | 7mph |
| Dew | 11° | 8° | 8° | 9° | 9° | 10° | 13° | 12° | 13° | 12° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2020
Mar 7, 2020
Clearing in the afternoon.
Low: 35°, High: 49°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 37° | 39° | 43° | 44° | 46° | 47° | 47° | 49° | 49° | 48° |
| Feel | 30° | 31° | 36° | 36° | 40° | 42° | 40° | 45° | 45° | 45° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 12mph | 14mph | 12mph | 18mph | 15mph | 11mph | 19mph | 9mph | 9mph | 7mph |
| Dew | 23° | 22° | 22° | 22° | 20° | 17° | 18° | 15° | 14° | 12° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2019
Mar 2, 2019
Cloudy skies throughout the day with early morning snow or rain.
Low: 32°, High: 43°, Light Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 32° | 33° | 34° | 37° | 38° | 39° | 40° | 43° | 43° | 43° |
| Feel | 29° | 30° | 31° | 33° | 33° | 33° | 37° | 38° | 38° | 39° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 4mph | 4mph | 4mph | 5mph | 7mph | 10mph | 5mph | 7mph | 9mph | 7mph |
| Dew | 31° | 32° | 33° | 36° | 35° | 35° | 34° | 35° | 35° | 35° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2018
Mar 3, 2018
Clear conditions throughout the day.
Low: 33°, High: 49°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 34° | 37° | 41° | 44° | 46° | 47° | 49° | 48° | 46° | 44° |
| Feel | 25° | 29° | 32° | 35° | 41° | 42° | 43° | 42° | 40° | 37° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 11mph | 13mph | 17mph | 22mph | 11mph | 11mph | 15mph | 13mph | 14mph | 17mph |
| Dew | 21° | 23° | 23° | 25° | 26° | 26° | 27° | 27° | 27° | 26° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2017
Mar 4, 2017
Clear conditions throughout the day.
Low: 20°, High: 39°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 28° | 29° | 32° | 34° | 36° | 37° | 38° | 39° | 38° | 38° |
| Feel | 21° | 20° | 23° | 26° | 29° | 29° | 29° | 29° | 30° | 30° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 6mph | 11mph | 12mph | 10mph | 10mph | 12mph | 18mph | 19mph | 14mph | 13mph |
| Dew | 12° | 12° | 11° | 11° | 11° | 9° | 9° | 7° | 7° | 7° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2016
Mar 5, 2016
Partly cloudy throughout the day.
Low: 33°, High: 42°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 33° | 35° | 35° | 37° | 40° | 41° | 42° | 42° | 42° | 40° |
| Feel | 29° | 30° | 29° | 37° | 37° | 40° | 37° | 38° | 37° | 36° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 4mph | 5mph | 6mph | 0mph | 4mph | 3mph | 7mph | 5mph | 6mph | 6mph |
| Dew | 20° | 20° | 20° | 20° | 21° | 22° | 22° | 23° | 23° | 23° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2015
Mar 21, 2015
Partly cloudy throughout the day.
Low: 30°, High: 59°, Light Rain
| Time | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM | 6PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 32° | 34° | 36° | 40° | 47° | 53° | 54° | 56° | 58° | 59° |
| Feel | 32° | 34° | 33° | 37° | 45° | 53° | 54° | 56° | 58° | 59° |
| Rain | light | light | - | - | - | - | - | - | - | - |
| Wind | 1mph | 0mph | 4mph | 4mph | 6mph | 8mph | 9mph | 7mph | 5mph | 7mph |
| Dew | 29° | 31° | 31° | 35° | 38° | 40° | 40° | 40° | 40° | 40° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2014
Mar 8, 2014
Clear conditions throughout the day.
Low: 25°, High: 60°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 34° | 39° | 45° | 52° | 56° | 58° | 58° | 60° | 59° | 59° |
| Feel | 29° | 39° | 41° | 52° | 56° | 58° | 58° | 60° | 59° | 59° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 5mph | 1mph | 7mph | 7mph | 5mph | 14mph | 11mph | 11mph | 8mph | 7mph |
| Dew | 29° | 29° | 32° | 36° | 37° | 37° | 36° | 36° | 34° | 34° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2013
Mar 2, 2013
Partly cloudy throughout the day.
Low: 29°, High: 36°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 31° | 30° | 33° | 32° | 34° | 34° | 34° | 36° | 34° | 35° |
| Feel | 22° | 22° | 24° | 24° | 26° | 26° | 26° | 28° | 27° | 26° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 10mph | 10mph | 11mph | 10mph | 10mph | 11mph | 10mph | 12mph | 9mph | 11mph |
| Dew | 20° | 21° | 21° | 20° | 21° | 20° | 20° | 20° | 20° | 19° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2012
Mar 3, 2012
Clearing in the afternoon with rain clearing later.
Low: 45°, High: 58°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 46° | 47° | 49° | 50° | 50° | 52° | 56° | 58° | 58° | 56° |
| Feel | 43° | 43° | 45° | 50° | 50° | 52° | 56° | 58° | 58° | 56° |
| Rain | light | light | - | - | - | - | - | - | - | - |
| Wind | 6mph | 9mph | 9mph | 14mph | 12mph | 11mph | 12mph | 14mph | 10mph | 12mph |
| Dew | 45° | 46° | 42° | 36° | 30° | 31° | 30° | 24° | 22° | 22° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2011
Mar 5, 2011
Partly cloudy throughout the day.
Low: 40°, High: 63°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 45° | 46° | 48° | 54° | 57° | 58° | 62° | 63° | 63° | 61° |
| Feel | 41° | 44° | 44° | 54° | 57° | 58° | 62° | 63° | 63° | 61° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 6mph | 5mph | 9mph | 9mph | 14mph | 13mph | 11mph | 14mph | 13mph | 10mph |
| Dew | 43° | 44° | 45° | 45° | 45° | 45° | 45° | 43° | 43° | 43° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2010
Mar 6, 2010
Clear conditions throughout the day.
Low: 29°, High: 50°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 32° | 36° | 39° | 42° | 45° | 46° | 48° | 49° | 50° | 49° |
| Feel | 25° | 30° | 33° | 38° | 40° | 43° | 46° | 45° | 47° | 45° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 8mph | 8mph | 9mph | 7mph | 9mph | 6mph | 6mph | 10mph | 8mph | 8mph |
| Dew | 17° | 15° | 13° | 13° | 13° | 13° | 13° | 15° | 15° | 14° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2009
Mar 7, 2009
Clearing in the afternoon.
Low: 48°, High: 72°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 56° | 63° | 67° | 70° | 70° | 72° | 72° | 72° | 72° | 72° |
| Feel | 56° | 63° | 67° | 70° | 70° | 72° | 72° | 72° | 72° | 72° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 3mph | 1mph | 4mph | 7mph | 6mph | 7mph | 9mph | 11mph | 8mph | 9mph |
| Dew | 47° | 48° | 51° | 50° | 50° | 48° | 48° | 48° | 48° | 48° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2008
Mar 1, 2008
Partly cloudy throughout the day.
Low: 34°, High: 47°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 40° | 40° | 40° | 42° | 45° | 44° | 45° | 45° | 45° | 42° |
| Feel | 32° | 30° | 30° | 32° | 37° | 35° | 38° | 37° | 38° | 34° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 14mph | 25mph | 24mph | 24mph | 22mph | 23mph | 16mph | 21mph | 18mph | 17mph |
| Dew | 24° | 21° | 19° | 18° | 21° | 20° | 22° | 21° | 20° | 18° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2007
Mar 3, 2007
Partly cloudy throughout the day.
Low: 32°, High: 57°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 37° | 43° | 50° | 54° | 57° | 55° | 55° | 54° | 54° | 53° |
| Feel | 37° | 43° | 50° | 54° | 57° | 55° | 55° | 54° | 54° | 53° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 2mph | 2mph | 1mph | 8mph | 17mph | 17mph | 13mph | 13mph | 10mph | 11mph |
| Dew | 27° | 27° | 30° | 27° | 26° | 26° | 30° | 29° | 27° | 27° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2006
Mar 4, 2006
Clear conditions throughout the day.
Low: 27°, High: 46°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 30° | 32° | 36° | 40° | 42° | 43° | 45° | 46° | 45° | 44° |
| Feel | 18° | 21° | 25° | 30° | 34° | 35° | 37° | 39° | 36° | 36° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 16mph | 19mph | 20mph | 19mph | 18mph | 21mph | 21mph | 19mph | 22mph | 18mph |
| Dew | 14° | 16° | 16° | 16° | 15° | 17° | 18° | 19° | 18° | 18° |
| RunScore |  | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2005
Mar 5, 2005
Partly cloudy throughout the day.
Low: 32°, High: 44°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 34° | 36° | 38° | 40° | 40° | 41° | 42° | 43° | 44° | 44° |
| Feel | 28° | 29° | 32° | 34° | 35° | 35° | 39° | 41° | 40° | 40° |
| Rain | - | - | - | - | - | - | - | - | - | - |
| Wind | 8mph | 10mph | 9mph | 9mph | 8mph | 10mph | 5mph | 4mph | 8mph | 8mph |
| Dew | 22° | 20° | 20° | 20° | 19° | 19° | 18° | 20° | 20° | 21° |
| RunScore | | | | | | | | | | |
Seneca Creek Greenway Trail Marathon 2004
Mar 6, 2004
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 50°, High: 71°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|---|---|---|
| Temp | 59° | 60° | 61° | 63° | 63° | 64° | 67° | 69° | 62° | 60° |
| Feel | 59° | 60° | 61° | 63° | 63° | 64° | 67° | 69° | 62° | 60° |
| Rain | light | light | light | - | light | light | light | - | light | - |
| Wind | 7mph | 9mph | 12mph | 7mph | 7mph | 7mph | 16mph | 15mph | 22mph | 17mph |
| Dew | 59° | 59° | 60° | 60° | 61° | 61° | 55° | 51° | 51° | 49° |
| RunScore | | | | | | | | | | |