Track At the
2012 United States Olympic Trials, Mitchell qualified for the Olympic team by finishing fifth in the 400 metres with a time of 44.96, which qualified him to run in the 4 × 400 metres relay as a member of the U.S. relay team. At the
2012 Summer Olympics held in
London, Mitchell ran the first leg of the heat for the
4 × 400 metres relay and revealed afterwards that he broke his left
fibula at the 200 m mark. Despite this, Manteo finished his lap and clocked a time of 45.7, and the American team was able to qualify for the final. After suffering an
Achilles injury after a car accident in 2016, Mitchell did not qualify to an international competition after 2017.
Bobsleigh In July 2020, Mitchell was persuaded to try
bobsleigh by
United States Bobsled and Skeleton Federation CEO Aron McGuire to try the sport. He started doing bobsled runs later that year and started competitions in 2021. By late 2022, Mitchell qualified for the sport's premier international competition circuit, the
Bobsleigh World Cup. Mitchell, as the push athlete, finished fifth alongside driver
Frank Del Duca in the
two-man event at the IBSF World Championships, which was the best American result since 2013. ==Personal life==