05/26/2021 NBC announced a somewhat significant change to their Olympics broadcaster lineup. On Wednesday, the network announced that Leigh Diffey would take over as the play by play broadcaster for track and field events in Tokyo. Diffey replaces Tom Hammond, who called track events for NBC since the 1992 Olympics. The good news is that Diffey is no stranger to track, the Olympics, or NBC. He’s been with the network since 2013, and has called events at the Olympics in 2014, 2016, and 2018 (bobsled, skeleton, and luge in the Winter Games, rowing in the Summer). Additionally, Diffey is NBC’s lead broadcaster for INDYCAR events, and also has called a variety of track events for NBC over the years.