John Smith

John Walton Smith (born August 5, 1950) is an American former athlete, who competed in the sprints events during his career. He is best known for winning the 400 m event at the 1971 Pan American Games. He remains the world record holder for the 440 yard dash at 44.5 seconds. He set the record while winning the USA Outdoor Track and Field Championships on June 26, 1971 while running for the Southern California Striders.

The record has stood since then due to metrification in the sport. Contemporary athletes rarely run or are timed officially for the extra 2.34 meters to equal 440 yards. Smith came as a favorite to the 1972 Summer Olympics, but injured a hamstring in the 400 m final and failed to finish the race. After retiring from competition, he became a sprint coach, training Maurice Greene and Ato Boldon amongst others.

At the time, his team called HSI (standing for Hudson Smith International) was the top sprint team in the world. He coached Carmelita Jeter, who held the second fastest 100 m time after Florence Griffith-Joyner. He also coaches400 relay championships four consecutive seasons, 1969-72. Smith won the individual 440 in 1971 and 400 in 1972 and both years UCLA won the overall team championship. Both Collett and Smith qualified for the 1972 Olympic team in the 400. Following his athletic career, he coached UCLA for 17 years before branching off to the HSI team.