Keith Woolner

Keith Woolner (born c. 1968) is an author for Baseball Prospectus and is the creator of the statistic Value Over Replacement Player (VORP). VORP is acknowledged by the sabermetrics community as one of the key concepts in the analysis of a player's performance and market valuation.

Education and early career Woolner grew up in New Hampshire as a fan of the Boston Red Sox, later moving to Florida as a teenager.

Sabermetrician and Cleveland Indians front office In 1998, while still employed full-time in software development and management, Woolner became a regular contributor to a fledgling Baseball Prospectus, for whom he wrote both for the annual book and the website. He also authored six chapters of Baseball Prospectus's book Baseball Between the Numbers.

In May 2007, Woolner announced his departure from Baseball Prospectus to join the front office of the Cleveland Guardians as their Manager of Baseball Research & Analytics. In this role, he is "responsible for advanced objective analysis, forecasting, and strategy analysis. [He is also] working on integrating the information from the disparate worlds of scouting and stats in a way that makes each stronger."