Four-time Olympic medalist Ato Boldon, NBC’s lead track and field analyst, witnessed a memorable year for the sport.
35-year-old Justin Gatlin shocking Usain Bolt to win the 100m world championship.
Bolt falling to the track in the final race of his decorated career.
The best-ever performance for the U.S. at Worlds, led by sprinter Allyson Felix, who passed retired Jamaican sprinter Merlene Ottey for the most career world championship medals.
Boldon discussed the 2017 track and field season before the year’s final Diamond League meet, which will take place today at 2:00 p.