Alexa Efraimson sets new American junior record!
18 year old Alexa Efraimson took more than a second off the American jr record previously held by Mary Cain, running 4:03.39 for seventh in the women's 1500 at the 2015 Prefontaine Classic.
18 year old Alexa Efraimson took more than a second off the American jr record previously held by Mary Cain, running 4:03.39 for seventh in the women's 1500 at the 2015 Prefontaine Classic.