Mezue ahịrịokwu na-esonụ: Moorcroft mere egwuregwu mbụ ya maka Great Britain na 1973 ma soro n'egwuregwu Olympic mbụ ya na Montreal na 1976, na-etinye nke asaa na njedebe nke 1,500 mita. O ritere ọla edo n'egwuregwu Commonwealth nke afọ 1978 n'Edmonton na mita 1500. Nanị izu anọ ka e mesịrị, o nwetara ọla nchara n'otu ebe ahụ n'asọmpi
European Athletics Championship na Prague. Na 1980 Moscow Olympics, ọ tara ahụhụ site na nsogbu afọ ma kpochapụ na 5,000 mita ọkara ikpeazu.