Lukezic would also win the 1600 meters at the Washington state 4A Track & Field Championships, and the Golden West Invitational.
At the Adidas Outdoor Championships, Lukezic and team mates Tyler Campbell, Mike Dixon, and Adam Vogt set the National Record for the high school 4 × 800 m relay with a time of 7:32.89, and then ran the second fastest high school Distance Medley Relay of all time, anchored by Lukezic's 4:03.6 1600m leg.
Lukezic attended Georgetown University for three years before turning pro and signing an endorsement contract with Reebok.
2006 was arguably Lukezic's most impressive year as he finished 7th at the World Indoor Championships in Moscow and later went on to run 3:33.28 for the 1500m, one of the top-10 fastest times ever posted by an American.
On November 11, 2009, Lukezic announced via Twitter and in Runners World Magazine that he had decided to retire from the sport.