Mezue ahịrịokwu na-esonụ: Hauker bụ onye asọmpi anọ na egwuregwu Paralympic na-emeri ngụkọta nke nrite sic. Egwuregwu mbụ ya bụ na 1984 Summer Paralympics ebe ọ gbara asọmpi n'ọsọ ogologo, igba egbe, 100m ma merie ọla nchara na 200m na 400m. Afọ anọ ka e mesịrị na Seoul na 1988 Summer Paralympics ọ nwetara ọla nchara ọzọ na 200m na 400m ma meziwanye iji merie ọla edo na 100m. N'egwuregwu Barcelona n'afọ 1992, o nwetaghị ihe nrite na 100m ma ọ bụ 400m mana o nwetara ọla nchara na 200m. Egwuregwu ikpeazụ ya bụ na
1996 ebe ọ gbara asọmpi na 100m, 200m na ogologo na-awụlikwa elu ma enweghị ike inweta ihe nrite ọ bụla ọzọ.