Doris Jacob Onye amụrụ n'abalị̀ iri na isii n'ime onwa Desemba n'afọ 1981, bụ Sprinta Nigeria ma bụrụ ọkachamara na 400 mita . Doris mgbara onye nke asaa na mita 4 x 400 na 1997 World Championship, ya na ndị otu egwuregwu Olabisi Afolabi, Fatima Yusuf na Falilat Ogunkoya . Isonye na egwuregwu a na 2000 Summer Olympics, ndị otu a gunyere Jacob, Afolabi, Rosemary Okafor na Charity Opara setịpụrụ akụkọ mba nke nkeji 3: 22.99 na ọṅụṅụ ọkụ [1] Jacob nyekwara aka nweta nrite ọla nchara na 2002 Commonwealth Games . [2] Na ọkwa onye ọ bụla, Jekọb ritere ọla ọcha na 2003 All-Africa Games na ọla nchara na 1999 Summer Universiade, onye a n'ekwu maka ya na oge kachasị ya mma bụ 51.04 sekọnd. Doris Jacob at World Athletics