[2] At the 2014 NCAA Division I Indoor Track and Field Championships he finished 5th in the 60 meter hurdles.
[3] At the 2014 NCAA Division I Outdoor Track and Field Championships he was runner-up in the 110 meter hurdles in a photo finish.
[4] At the 2014 USA Outdoor Track and Field Championships Harris finished fourth in the 110 meter hurdles.
[6] At the 2017 USA Outdoor Track and Field Championships Harris finished first in the 110 meter hurdles, beating Aries Merritt and Devon Allen.
Therefore, Harris earned the final spot in his event to the 2015 World Championships in Athletics.