Dee ihe na-aga n'ihu maka paragraf a - Ihor Olefirenko (amụrụ 14 Machị 1990) bụ onye Ukraine na-agba ọsọ ogologo na onye na-agba ụta. Ọ gbara onye nke iri atọ na marathon ahụ
na 2016 Summer Olympics. N'afọ 2020, ọ zọrọ asọmpi n'ọsọ ụmụ nwoke na 2020 World Athletics Half Marathon Championships nke emere na Gdynia, Poland.