Mark Broadie is a professor at Columbia Business School. His "strokes gained" formula measures players' performances relative to their competitors'. His book, Every Shot Counts, will be published by Gotham Books in 2013.
Rory McIlroy outplayed Tiger Woods in 2012 -- but just barely. Here's how No. 1 and No. 2 stack up, tee-to-green.
This article originally appeared in the December 2012 issue of Golf Magazine, on newstands now. Click here to subscribe to Golf Magazine and to learn about Golf Magazine All Access.