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June 3, 2026
July 11, 2024

1,100 participants still running when Peachtree Road Race gets canceled due to heat, humidity

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Written by: E. George

Published July 11, 2024 @ 12:00 PM ET

FULTON COUNTY, Ga. – This year’s Peachtree Road Race began on Thursday, July 4, 2024, as planned, with 43,000+ participants registered for the event. However, officials ended the race early due to weather conditions as approximately 1,100 runners still sprinted toward the finish line.

A flag system allows organizers to make decisions and alert runners based on several criteria. A green flag confirms that conditions are normal and safe, a yellow flag indicates moderate circumstances, a red flag warns of extreme conditions, and a black flag symbolizes an unsafe environment.

This year’s black flag indicated an unsafe race due to extreme heat and humidity.

Atlanta Track Club CEO and Road Race Director Rich Kenah explained that runners often overheat after crossing the finish line. They typically focus on obtaining water, visiting cool-off stations, and utilizing other resources immediately upon finishing the race.

The high temperatures and dense humidity this past Independence Day in Atlanta proved too high a health risk for runners already prone to overheating even in normal conditions.

Kenah said water station volunteers undergo training on informing participants about flag changes and other announcements, but digital message platforms are also used.

He stated, “We now have the ability to text message the people that are out there on the course. More than 80% of the participants now are participating with their phone, and so that allows us to communicate in real-time.”

Kenah added that registration interest has grown to nearly pre-pandemic numbers over the past few years. However, officials have slowly increased the number of participants to ensure the capability of addressing issues, such as heat exhaustion and extreme fatigue.

He said, “We don’t want to regrow too fast. We want to make sure that we relearn how to operate an event at 50,000 and then 55,000 before we rush back to 60,000. That can be more water, more misting stations, [and] opportunities to cool off more quickly as you exit the park.”

Last year’s race also featured a black flag and ended prematurely, but lightning and rain thwarted the event rather than heat and humidity.

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