MIDDLE SCHOOL NATIONAL RECORD‼️ Angelina Alder sets the 13-year-old age group mile world record, AND middle school mile national record in 4:38.25. Alder, sister of Lily Alder, is only a 7th GRADER!! She also holds the 12-year-old world record that she set TWO MONTHS AGO. 13 out of 19 girls PRed in the girls JR mile at Brooks PR #BrooksPR | @brooksrunning