Kammala wannan jumla: MacDonald ya yi gasa a gasar zakarun duniya biyar na IPC Athletics World Championships daga 1994 zuwa 2011. A cikin 1994, ya yi gasa a cikin 100m, 200m da 400m T35 abubuwan da suka faru. A cikin 1998, ya lashe lambar tagulla a cikin Shot Put F34 na maza kuma ya yi gasa a cikin maza 100m da 200m T35 abubuwan da suka faru. An sami sabani a lokacin Shot Put na Maza inda aka tilasta wa MacDonald canza fasaharsa a tsakiyar gasar saboda rashin sanin hukuma game da dokoki. A shekara ta 2002, ya lashe zinare a Wasannin Shot Put F34 na maza a cikin tarihin duniya (10.69m) kuma ya yi gasa a Wasannin Discus F33-34 na maza. A shekara ta 2006, ya lashe zinare a gasar Men's Shot Put F34 kuma ya fafata a gasar Men's Discus F33-34. A cikin
2011, ya gama na 6 a cikin Shot Put F34 na maza.