Cooper Lutkenhaus of the U.S. competes in the 800-meter heats at the World Athletics Championships on Sept. 16, 2025, at National Stadium in Tokyo. Justin Northwest phenom Cooper Lutkenhaus’ stock just keeps rising. He won the indoor 800-meter national championship at the USA Track and Field Championships Sunday. With a 1:46.68 mark, Lutkenhaus claimed his first national title and qualified for the upcoming World Indoor Championships that start March 20 in Poland.