Louis Serafini is a Boston based American distance runner and Runna US General Manager. He notably became the 514th American to break the 4-minute mile barrier, achieving a time of 3:59.33 in 2018—a milestone he considers one of his most memorable accomplishments. Louis has also qualified for three Olympic Marathon Trials with his best finish being 35th in Orlando in 2024, showing his consistency and dedication to the sport.
Beyond the mile, he holds a personal best of 2:14:59 in the marathon, set at the 2022 California International Marathon (10th at the US Marathon Championships, and he clocked a notable 1:03:13 in the half marathon at the 2019 Brooklyn Half Marathon. Alongside his running career, he works as Runna’s General Manager of North America.
Louis Serafini
