Jack Green (athlete) Jack Green (athlete) Jack Green (born 6 October 1991) is a British sprint athlete who specialises in the 400m distance, along with the hurdles and the 4 × 400 m relay. He competed for the Great Britain team at the 2012 Summer Olympics in London and at the 2016 Summer Olympics in Rio de Janeiro. Since late 2010, Jack Green has trained with Malcolm Arnold at the University of Bath alongside fellow hurdler Dai Greene. At the 2011 World Championships, he finished fifth in his semi-final, a performance he described as "embarrassing, a waste of my time and the team's
Jermaine Brown (athlete) Jermaine Brown (athlete) Jermaine Brown (born 4 July 1991) is a Jamaican track and field sprinter. He competes in distances from 60 metres to 400 metres. He has a 200 metres best of 20.29 seconds and a 400 m best of 46.24 seconds. He mainly competes internationally in relay competitions. He is a world record holder for the 4 × 200 metres relay event, having set a time of 1:18.63 minutes with the Jamaican team at the 2014 IAAF World Relays. He was also a bronze medallist in the 4 × 400 metres relay at the 2014 IAAF World Indoor