Matthew Centrowitz Jr. (born October 18, 1989) is an American middle-distance runner who specializes in the 1500 meters. He became a prominent figure in U.S. running when he won a bronze medal at the 2011 World Championships in Athletics. A seasoned competitor with a potent finishing kick, he competed at the 2012 Summer Olympics in the 1500 meters—where he finished 4th by only 0.04 seconds. At the 2013 World Championships in Athletics, Centrowitz improved on his bronze medal performance with a silver in the same event. At the 2016 World Indoor Championships, he won his first major international championship in the 1500 meters. He then won the gold medal in the 1500 meters at the 2016 Summer Olympics in Rio de Janeiro with the slowest winning time since 1932, becoming the first U.S. runner to win the event since 1908.