Bill James

Bill James is a baseball researcher/historian and prolific author who created the term "sabermetrics" and popularized the field. His most important contributions to sabermetrics came in his Baseball Abstracts, published annually from 1977-1988. Other notable books by James include the Whatever Happened to the Hall of Fame?, and Win Shares.

Contributions to Sabermetrics

This list includes methods and concepts that were invented by James as well as those which he had a large role in popularizing:

• Component ERA
• Defensive Spectrum
• DER
• Isolated Power
• Log5
• Offensive Winning Percentage
• Pythagorean Theorem
• Range Factor
• Run Element Ratio
• Runs Created
• Secondary Average
• Similarity Score
• Win Shares