The 7 Major Marathons Should Move Their Start Dates, Science Suggests. The Evidence Is Convincing.

Your chance of getting ideal conditions at one of the World Marathon Majors is shrinking—and in some cases, nonexistent.

https://www.runnersworld.com/news/a70011457/world-major-marathons-start-dates-weather/

By Heather Mayer Irvine

RUNNER’S WORLD