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Race Overview
The Cannonball Marathon is an annual marathon, half marathon, 10K, and 5K held in Greensboro, North Carolina, one of the longest-running road races in the state. The marathon and half marathon share a course starting and finishing at Jaycee Park within Country Park, following the Atlantic & Yadkin Greenway through north Greensboro; marathon runners complete two loops. The marathon is a Boston Marathon qualifier. Proceeds from the race support the adjacent Greensboro Science Center.
WikipediaFAQ
When is the 2026 Cannonball Marathon?
The 2026 Cannonball Marathon will be held on Saturday October 17, 2026.
Is the Cannonball Marathon a Boston Marathon Qualfier?
Yes, the Cannonball Marathon is an official Boston Marathon qualifier.
What is the time limit for the Cannonball Marathon?
The time limit for the Cannonball Marathon is 6 hours.
Cannonball Marathon Course Map
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Cannonball Marathon Weather History
Cannonball Marathon Weather Averages
Average Temp: 61°, Average Low: 51°, Average High: 73°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 53° | 56° | 60° | 64° | 67° | 69° |
| Feel | 52° | 55° | 60° | 64° | 67° | 69° |
| Rain | - | - | - | - | - | - |
| Wind | 2mph | 5mph | 7mph | 5mph | 6mph | 4mph |
| Dew | 49° | 50° | 50° | 51° | 50° | 50° |
| RunScore |  | | | | | |
Cannonball Marathon 2025
Oct 18, 2025
Clear conditions throughout the day.
Low: 49°, High: 79°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 50° |  55° | 62° | 67° | 72° | 75° |
| Feel | 48° | 55° | 62° | 67° | 72° | 75° |
| Rain | - | - | - | - | - | - |
| Wind | 4mph | 7mph | 8mph | 10mph | 7mph | 8mph |
| Dew | 47° | 50° | 53° | 54° | 56° | 57° |
| RunScore |  | | | | | |
Cannonball Marathon 2024
Oct 12, 2024
Clear conditions throughout the day.
Low: 47°, High: 76°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 48° | 54° | 60° | 67° | 71° | 72° |
| Feel | 46° | 54° | 60° | 67° | 71° | 72° |
| Rain | - | - | - | - | - | - |
| Wind | 4mph | 5mph | 6mph | 7mph | 6mph | 6mph |
| Dew | 44° | 46° | 45° | 44° | 44° | 43° |
| RunScore | | | | | | |
Cannonball Marathon 2023
Oct 14, 2023
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 57°, High: 69°, Heavy Rain
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp |  58° | 58° | 59° | 59° | 61° | 63° |
| Feel | 58° | 58° | 59° | 59° | 61° | 63° |
| Rain | moderate | light | light | light | light | light |
| Wind | 1mph | 6mph | 6mph | 3mph | 4mph | 3mph |
| Dew | 57° | 57° | 57° | 58° | 59° | 60° |
| RunScore |  |  | | | | |
Cannonball Marathon 2022
Oct 22, 2022
Clear conditions throughout the day.
Low: 37°, High: 71°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 37° | 45° | 52° | 60° | 65° | 67° |
| Feel | 37° | 44° | 52° | 60° | 65° | 67° |
| Rain | - | - | - | - | - | - |
| Wind | 0mph | 3mph | 3mph | 0mph | 0mph | 3mph |
| Dew | 34° | 39° | 40° | 40° | 36° | 33° |
| RunScore |  | | | | | |
Cannonball Marathon 2021
Oct 23, 2021
Partly cloudy throughout the day.
Low: 49°, High: 70°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp |  52° | 54° | 61° | 63° | 64° | 66° |
| Feel | 52° | 54° | 61° | 63° | 64° | 66° |
| Rain | - | - | - | - | - | - |
| Wind | 0mph | 3mph | 8mph | 8mph | 7mph | 2mph |
| Dew | 47° | 47° | 46° | 45° | 45° | 46° |
| RunScore | | | | | | |
Cannonball Marathon 2019
Oct 12, 2019
Partly cloudy throughout the day.
Low: 56°, High: 81°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 58° | 60° | 64° | 70° | 76° | 77° |
| Feel | 58° | 60° | 64° | 70° | 76° | 77° |
| Rain | - | - | - | - | - | - |
| Wind | 4mph | 4mph | 5mph | 9mph | 9mph | 6mph |
| Dew | 53° | 55° | 55° | 56° | 55° | 56° |
| RunScore | | | | | | |
Cannonball Marathon 2018
Oct 13, 2018
Clearing in the afternoon.
Low: 51°, High: 66°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 55° | 58° | 60° | 63° | 64° | 65° |
| Feel | 55° | 58° | 60° | 63° | 64° | 65° |
| Rain | - | - | - | - | - | - |
| Wind | 0mph | 8mph | 15mph | 9mph | 16mph | 8mph |
| Dew | 49° | 49° | 47° | 47° | 44° | 43° |
| RunScore | | | | | | |
Cannonball Marathon 2017
Oct 14, 2017
Partly cloudy throughout the day.
Low: 60°, High: 74°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 60° | 60° | 61° | 62° | 63° | 66° |
| Feel | 60° | 60° | 61° | 62° | 63° | 66° |
| Rain | - | - | - | - | - | - |
| Wind | 4mph | 1mph | 3mph | 2mph | 1mph | 0mph |
| Dew | 60° | 60° | 59° | 60° | 60° | 61° |
| RunScore | | | | | | |
Cannonball Marathon 2016
Oct 15, 2016
Partly cloudy throughout the day.
Low: 53°, High: 73°
| Time | 8AM | 9AM | 10AM | 11AM | 12PM | 1PM |
|---|---|---|---|---|---|---|
| Temp | 55° | 56° | 59° | 61° | 65° | 67° |
| Feel | 55° | 56° | 59° | 61° | 65° | 67° |
| Rain | - | - | - | - | - | - |
| Wind | 4mph | 3mph | 5mph | 1mph | 1mph | 5mph |
| Dew | 52° | 52° | 52° | 53° | 54° | 54° |
| RunScore | | | | | | |