Mezue ahịrịokwu na-esonụ: Ndị nwoke 4 x 100 mita relay na 2009 World Championships na Athletics weere ọnọdụ na Olympic Stadium na Berlin na August 21 na August 22. Ndị isi abụọ na-azọ ihe omume ahụ bụ ndị mmeri ụwa na-achị achị, United States, na United States.
ndị na-achị achị n'egwuregwu Olympic, 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.