Kammala wannan jumla: Hartmann ya girma a Rockford, Michigan kuma ya kammala karatunsa daga Rockford High School a 1999. Ya sanya tawagarsa ta farko a matsayin matashi mai gudu a gasar
2000 IAAF Gasar Cin Kofin Duniya, inda ya gama a matsayi na 66. Ya ci gaba da samun digiri na BA a fannin ilimi da ilimin zamantakewa a Jami'ar Oregon kuma ya yi gasa a cikin abubuwan da suka faru na nesa don ƙungiyar 'yan wasan Oregon Ducks. Ya sami lambar yabo ta All-America guda shida a lokacin da yake can, tare da nuna alama a matsayin na huɗu a cikin mita 10,000 a Gasar NCAA ta waje a 2002 da 2003, da kuma biyu masu tsere a gasar a gasar Pac-10.