Mezue ahịrịokwu na-esonụ: A na-egwuri ụfọdụ egwuregwu egwuregwu (dịka MLB nke ugbu a nke Division Series) na usoro kachasị mma ise, nke mere na egwuregwu 5 nwere àgwà ndị yiri nke ndị a kọwara n'elu, ọ bụ ezie na ihe mgbagwoju anya na ihe nkiri nwere obere oge iji wuo na usoro dị mkpirikpi. Ọzọkwa, World Series nke
A na-egwuri egwu na 1903, 1919, 1920, na 1921 n'ụdị nke itoolu kachasị mma, ọ bụ ezie na ọ dịghị nke anọ gara egwuregwu 9 na-ekpebi.