He holds dual citizenship in the United States and Canada.
Slater, who took the West Virginia high school state title as a freshman in May, has excelled in three more events this summer.
In addition to the Canadian title, he also won a gold medal in the AAU national championships at Eastern Michigan and a silver medal at the USATF Junior Olympics in Greensboro, N.C.
MINERS GOLF CLASSIC: The second Remember the Miners tribute golf tournament is set for Monday at the Resort at Glade Springs.
The event benefits the Remember the Miners Scholars Program, which awards financial aid to miners and their dependents pursuing higher education in the mining industry. Tickets are available at remembertheminers.eventbrite.com.
A shotgun start is set for 10:30 a.m., with a reception scheduled for 4-6 p.m. Representatives from West Virginia University's athletic department, Little General Stores and the West Virginia Coal Association are set to attend.