He also competes in the 60-meter dash and won the national title at the 2009 USA Indoor Track and Field Championships with a personal record of 6.51 seconds.

[1] The second and third-place finishers, collegiate sprinters Trindon Holliday and Walter Dix, passed up the chance to run at the 2007 World Championships in Athletics and Jelks got the opportunity to compete instead.

He ran 9.99 seconds for third place in the quarter-finals (the fastest ever by a former Indiana high school athlete),[4] However, he was slower in the semi-finals and was eliminated from the Olympic Trials.

[3] He began the 2010 indoor season in good form, winning the 60 m in Düsseldorf with a time of 6.56 seconds,[3] but was suspended from competition for a doping violation in April.

A month and a half later Jelks ran his first international competition in a Nigerian uniform, making the final in the 100 metes at the 2014 Commonwealth Games.