Running her way into the record books! Mallory Weller, who entered #NBNationals with a mile lifetime best of 4:39, just climbed into the top five all-time high school list with her 4:31.78 to win the girls title in Philly. Weller closed her last 400m in 63.63 seconds, holding off Abigail Hennessey in second in 4:33.18. 📸: johnnepolitan