Mezue ahịrịokwu na-esonụ: N'afọ 1900, Clarke sonyeere Pittsburgh Pirates dị ka onye ọkpụkpọ na onye njikwa, ọrụ ọ ga-anabata ruo mgbe ọ lara ezumike nká na 1915. bụ ihe a na-arụ ụka na ọ bụ oge kachasị mma nke ọrụ Clarke ka ọ na-eduzi Major Leagues na slugging nkezi na OPS ma na-eduzi Njikọ Mba na okpukpu abụọ. O mechara bụrụ onye nke abụọ n'azụ onye otu ya, Honus Wagner, maka aha ịkụ ọkpọ nke National League. N'ime
Na World Series mbụ ya, Clarke gbara.265 mana Cy Young na Bill Dinneen nke Boston meriri Pittsburgh n'ozuzu ma merie usoro ahụ na egwuregwu asatọ.