Kenneth Medwood was the youngest person to represent Belize at the London Games at age 24. He had not participated in any previous Olympic Games. Medwood qualified for the Games because his fastest time of 49.54 seconds, recorded at the Mt. San Antonio College in April 2012, was 0.26 seconds quicker the "B" qualifying standard for his event, the men's 400 metres hurdles. He competed in the event's first heat on 3 August, finishing fourth out of eight athletes, with a time of 49.78 seconds. Medwood's performance allowed him to qualify for the contest's semifinal stage as the fastest losing runner. In the semifinals the following day, he placed fifth out of eight runners, with a time of 49.87 seconds. Overall he finished 17th out of 46 runners, and did not advance to the final after finishing 1.92 seconds slower than the slowest qualifier. After his event, Medwood told "Great Belize Television" that the games were "a great experience" which were something she had anticipated but that "it was an experience in itself because I've never been to the Games."