Athletics - Berlin Marathon - Berlin, Germany - September 21, 2025 General view during the race REUTERS/Annegret Hilse
LONDON (Reuters) -Climate change is narrowing the window for record-breaking performances at the world's top marathons, according to new research released ahead of Sunday's New York City Marathon.
Concerned elite athletes say rising temperatures are reshaping the sport with some city marathons more impacted than others. Berlin's event last month was raced in unseasonal temperatures of 75 degrees Fahrenheit.
