Dhameystir weedha soo socota: Sanadkii 1983, McCullough wuxuu ahaa Guddoomiyihii ugu horreeyay ee Aasaaska Ciyaaraha Waqooyiga Queensland. Wuxuu qabtay jagadan ilaa 1986. Laga soo bilaabo 1989 ilaa 1999, wuxuu ahaa Madaxweynaha Wheelchair Sports Australia (hadda Ciyaartoyda Naafada ah ee Australiyaanka). Sannadkii 1994, waxaa loo magacaabay Madaxweynaha Xiriirka Paralympic-ka Australia. Wuxuu la wareegay Federaalka xili ay heysteen dhaqaale kooban una dhowaa burbur. McCullough wuxuu dejiyay istiraatiijiyad suuq-geyn iyo lacag ururinta oo ujeedkeedu ahaa in lagu ururiyo $ 1.5 milyan kooxda si ay ugu tartamaan
Ciyaaraha Paralympic-ka ee Atlanta 1996. Natiijada habkani wuxuu ahaa Hay'adda Shilalka Gawaarida ee New South Wales oo bixisa $ 100,000 iyo shaqo 10 ciyaartooy ah oo ku saabsan kor u qaadista naafonimada shilalka baabuurta. Intii uu madaxweyne ahaa, wuxuu heshiis la galay Guddiga Qabanqaabada Paralympic ee Sydney si ay Xiriirku u helaan $ 5.5 milyan xuquuqda suuqgeynta afarta sano ee u horseeday 2000 Sydney Paralympics. Qorshahan maaliyadeed oo ay weheliso Barnaamijka Diyaarinta Paralympic ee Dowladda Australia ayaa u horseeday kooxda Australia inay ku dhammaystiraan kaalinta 2aad ee abaalmarinta billadaha ciyaaraha Atlanta 1996. McCullogh waxaa madaxweyne looga beddelay 1997 Marie Little. Wuxuu ahaa Agaasimaha Guddiga Qabanqaabada Paralympic ee Sydney (1997<unk>2000).