as having a binomial distribution. Predictions can be made using a logistic regression model with explanatory variables including: opponents' runs scored, runs scored, shutouts time at bat, winning rate, and pitcher whip. Recent advances Many sabermetricians are still working hard to contribute to the field through creating new measures and asking new questions. Bill James' two Historical Baseball Abstract editions and Win Shares book have continued to advance the field of sabermetrics, 25 years after he helped start the movement. His former assistant Rob Neyer, who is now a senior writer at ESPN.com and national baseball editor of SBNation, also worked on popularizing sabermetrics since the mid-1980s. Nate Silver, a former writer and managing partner of Baseball Prospectus, invented PECOTA. This acronym stands for Player Empirical Comparison and Optimization Test Algorithm, and is a sabermetric system for forecasting Major League Baseball player performance. Simply put, it assumes that the careers of similar players will follow a similar trajectory. This system has been owned by Baseball Prospectus since 2003 and helps the website's authors invent or improve widely relied-upon sabermetric measures and techniques. Beginning in the 2007 baseball season, the MLB started looking at technology to record detailed information regarding each pitch that is thrown in a game. This became known as the PITCHf/x system which is able to record the speed of the pitch, at its release point and as it crossed the plate, as well as the location and angle of the break of certain pitches through video cameras. FanGraphs is a website that favors this system as well as the analysis of play-by-play data. The website also specializes in publishing advanced baseball statistics as well as graphics that evaluate and track the performance of players and teams. In popular culture Moneyball, the 2011 film about Billy Beane's use of sabermetrics to build the Oakland Athletics. The film is based on Michael Lewis's book of the same name. In the television show Numb3rs, the season 3 episode "Hardball" focuses on sabermetrics, and the season 1 episode "Sacrifice" also covers the subject. "MoneyBART", the third episode of The Simpsons 22nd season, in which Lisa utilizes sabermetrics to coach Bart's Little League Baseball team. See also Analytics (ice hockey), the ice hockey equivalent Advanced statistics in basketball, the basketball equivalent Fielding Bible Award Kyle Boddy, founder of Driveline Baseball Statcast The Hardball Times Theorycraft Total Baseball by John Thorn and Pete