Botswana athletes have found success in long sprinting and middle distance events; Nijel Amos won the first Olympic medal as a junior athlete, finishing with a silver medal in the 800 metres at the 2012 Olympics behind David Rudisha's world record. Amos remain the World Junior Recordholder from that performance. Amantle Montsho is the 2011 World Champion at 400 meters. Isaac Makwala is the seventh fastest 400 meter runner in history and he leads a promising 4x400 metres relay team that was in contention to medal at the 2016 Olympics until the closing steps of the race.