In the 2007 NCAA East Regional final, Dix set the all-time collegiate record of 19.69 in the 200, breaking a record that had stood since 1988 and posting what was then the world's fastest time of the year.
In the 2007 NCAA East Regional final, Dix set the all-time collegiate record of 19.69 seconds in the 200 m, breaking a record that had stood since 1988. This placed him at number five on the all time 200 m list and set what was then the world's fastest time of the year.