Dee ihe ọzọ maka paragraf a - Egwuregwu ụmụ nwoke 4 x 100 mita na 2009 World Championships na Athletics mere na Olympic Stadium na Berlin na August 21 na August 22. Ndị isi abụọ a na-azọ maka ihe omume ahụ bụ ndị na-achịkwa World Champions, United States, na ndị na-achịkwa Olympic Champions
Jamaica. Jamaica jidere ndekọ ụwa na 37.10 (nke e mechara kagbuo), nke e guzobere na 2008 Summer Olympics na Beijing, ebe United States banyere na 2009 n'ozuzu oge kachasị mma 37.85.