Who is the only athlete to win Olympic gold medals in both the long jump and the 400-meter dash?

The only athlete to win Olympic gold medals in both the long jump and the 400-meter dash is Carl Lewis.

Carl Lewis is one of the greatest track and field athletes of all time. He won 10 Olympic medals, including 9 golds, over the course of four Olympic Games from 1984 to 1996. Lewis was particularly dominant in the long jump, winning four consecutive Olympic golds in the event from 1984 to 1996. He also won gold medals in the 100-meter dash, 200-meter dash, and 4x100-meter relay.

However, Lewis's accomplishment in winning gold medals in both the long jump and the 400-meter dash at the 1984 Olympics in Los Angeles is particularly impressive. The two events require vastly different skills and training, and few athletes have attempted to compete in both at the Olympic level. Lewis won the long jump with a leap of 8.54 meters, a new Olympic record, and he won the 400-meter dash in a time of 44.75 seconds.

Carl Lewis's incredible athletic ability and versatility make him a true legend in the world of track and field.