IAAF track and field world championships

When, where: Friday-Aug. 13 in London

TV: Ch. 11, NBC Sports Network

Local connections: Maggie Ewen of St. Francis will compete in the women’s hammer throw, with the preliminary round Saturday and finals Monday. Hassan Mead, a 2016 Olympian who ran for Minneapolis South High School and the Gophers, will run in the men’s 10,000 meters Friday.