66. Ed Walsh
Another pitcher whose career was cut short due to arm injuries, Ed Walsh packed quite a bit of production into his seven year prime.
Pitching for the Chicago White Sox just after the turn of the century, Walsh became a mainstay in the White Sox rotation beginning in 1906. Over the next seven years, Walsh led the American League in ERA and strikeouts twice, and won 40 games during the 1908 season. A true workhorse, he led the league in innings four times, and in games pitched five times.
Although his overall 195-126 record may not seem impressive, the vast majority of that came in a seven year span. Due to arm injuries, Walsh only pitched in 33 games after his age 31 season. Yet, even with those injuries, he posted a major league record 1.82 ERA in his career, and a WHiP of exactly 1.000.
Walsh was far more than a dominant pitcher. He was considered one of the best fielders on the mound during his heyday, and may well have won multiple Gold Glove awards had the honor existed during his time. He also helped design Comiskey Park, which likely helps explain why it was so beneficial to pitchers.
He may have only had seven years where he was able to show how well he could perform, but Walsh still carved through the opposition and into the record books.
Next: A workhorse beyond compare