http://www.directathletics.com/athletes/track/52951.html DirectAthletics Results for Harrison, Mark en-us DirectAthletics, Inc. info@directathletics.com info@directathletics.com http://www.directathletics.com/results/track/6356_447038.html?athlete_hnd=52951 Track & Field 2007 Kansas Relays (College/Open) 400m IH 51.26 04/18/2007 http://www.directathletics.com/results/track/6356_447131.html?athlete_hnd=52951 Track & Field 2007 Kansas Relays (College/Open) 400m IH 52.71 04/18/2007 http://www.directathletics.com/results/track/3563_267996.html?athlete_hnd=52951 Track & Field 2006 Kansas Relays (College/Open Division) 400m IH 52.13 04/20/2006 http://www.directathletics.com/results/track/3643_251072.html?athlete_hnd=52951 Track & Field 79th Clyde Littlefield Texas Relays 400m IH 51.91 04/05/2006 http://www.directathletics.com/results/track/2244_150319.html?athlete_hnd=52951 Track & Field 2005 Kansas Relays (College/Open Division) 400m IH 1:00.10 04/21/2005 http://www.directathletics.com/results/track/2174_128083.html?athlete_hnd=52951 Track & Field 2005 Clyde Littlefield Texas Relays 400m IH 53.53 04/06/2005 http://www.directathletics.com/results/track/1228_60570.html?athlete_hnd=52951 Track & Field 2004 Clyde Littlefield Texas Relays (Univ/College Events) 400m IH 55.66 03/31/2004 http://www.directathletics.com/results/track/1169_47823.html?athlete_hnd=52951 Track & Field 2004 Arizona Jim Click Shootout 400m IH NT 03/27/2004 http://www.directathletics.com/athletes/track/52951.html Track & Field Ward Haylett Invitational 400m IH 52.04 05/03/2003 http://www.directathletics.com/results/track/670_33739.html?athlete_hnd=52951 Track & Field 2003 Kansas Relays (College/Open Divisions) 400m IH 53.66 04/16/2003 http://www.directathletics.com/results/track/665_31027.html?athlete_hnd=52951 Track & Field 76th Clyde Littlefield Texas Relays 400m IH 53.90 04/02/2003