In the 100m final, Christian Coleman shone brighter than the lights that illuminated the track with his name during his introduction at Khalifa International Stadium.

Justin Gatlin has officially begun his career after Dennis Mitchell. Reuters reported on Friday that Gatlin is being coached by Brooks Johnson in Orlando, Florida. Gatlin fired Mitchell in December after Mitchell was implicated in a doping sting facilitated by the British newspaper the Daily Telegraph. 

From the roads to the track, 2017 was filled with surprises. Here are FloTrack's top five upsets from the running world this year.