 During the 1907 season, despite being one of the oldest players in the National League, Casey continued to perform well defensively, compiling the second highest fielding percentage (.955) among the league's third basemen.He also compiled a career high 176 putouts at third base in 1907 – the third highest total by any National League third baseman that year.Casey appeared in his last major league game on October 5, 1907.