JSU alum Tinsley runs at Rio Olympics
Tinsley posted a time of 50.18 seconds in his heat, good for fifth place.
The first national champion in his alma mater's history, the Little Rock, Ark. native won silver in the 2012 Olympics in London and later secured a silver medal finish in the following year's world championships.
Tinsley won't be the only Jackson State runner to compete in Rio, as 200-meter sprinter Anaso Jobodwana begins his preliminary races tomorrow. Jobodwana finished eighth in the event during the 2012 Olympics with a mark of 20.69 seconds. During the 2015 World Championships, Jobodwana claimed the bronze medal with a new personal-best -- and national record for his home country of South Africa -- time of 19.87 seconds.