Arlington senior Ryan Oosting ran the top high school mile time in the country, doing so in 4:03.70 in the Men’s High Performance Mile at the Adrian Martinez Classic Thursday at Emerson Field in Concord.
Oostling finished fifth in the race behind elite adult runners. He bested his previous personal record by eight seconds.
Also at the event, Topsfield’s Abbey (D’Agostino) Cooper competed in her first 5,000-meter run since tearing her ACL in the 2016 Olympics, finishing sixth in 15:21.87. Vermont native and UNH’s Ellie Purrier won the race in 15:08.61, setting a meet record.
Brandon Chase can be reached at email@example.com.