Alicia Monson shattered the American women’s 10,000m record by 9.35 seconds in a race in San Juan Capistrano, California, on Saturday night.
Monson, a 24-year-old who placed 13th at the Tokyo Olympics and last year’s world championships, ran 30 minutes, 3.82 seconds. That broke the American record of 30:13.17 set by Molly Huddle at the 2016 Rio Olympics.
Monson placed second in Saturday’s race to Eilish McColgan, who clocked 30:00.87 to beat Paula Radcliffe’s British record of 30:01.09 from August 2002.