Ethiopian Mohammed Aman totally dominated the 2013 season. He lost just once (early in the season, to Rudisha) but won all his other races. He also won the Diamond Race, and in the final he ran a new National record. That was also the fastest time of the season and the only 1:42 this year.
On top of that he became World Champion, the first time an athlete from Ethiopia could win the 800 m title. Here he celebrates his thoroughly deserved world title.