Max Marchi lives in Bologna, Italy.
He started playing baseball when he was 5 and has been performing statistical analysis on baseball data since 2002.
His works have been published at Baseball Prospectus and The Hardball Times.
Jim Albert lives in Findlay, Ohio.
He grew up in Philadelphia and remains a passionate Phillies fan. Although he grew up playing Little League baseball, tennis is his favorite sport. He has coauthored Curve Ball with Jay Bennett and Teaching Statistics Using Baseball
Ben Baumer lives in Florence, Massachusetts.
He played baseball through high school and worked for the New York Mets as their Statistical Analyst from 2004 until 2012. He has recently coauthored The Sabermetric Revolution: Assessing the Growth of Analytics in Baseball, and the openWAR package for R.
Carson Sievert lives in Ames, Iowa.
Currently a graduate student at Iowa State, Carson’s roots are in Minnesota where the Twins are practically a religion. He grew up playing baseball and obsessing over the value of his precious baseball card collection. In recent years, he authored the R package pitchRx for collecting and visualizing PITCHf/x data.
Brian Mills lives in Gainesville, Florida.
Brian is currently an Assistant Professor at the University of Florida after a cold, five year stay in Ann Arbor, Michigan. He played baseball at the Division III level and researches managerial sports economics. Most recently, Brian has been working on measurement and visualization of MLB umpire performance using PITCHf/x data.
Aaron Baggett lives in Belton, Texas.
Aaron is currently an Assistant Professor of Psychology at the University of Mary Hardin-Baylor. He teaches courses in introductory statistics and experimental design for the social sciences. A former high school and college baseball umpire, Aaron is primarily interested in modeling MLB umpire ball—strike judgment and decision making patterns using PITCHf/x data with application to the sport and cognitive psychological sciences. His Ph.D. dissertation was entitled, Effects of Pitch Location and Count on Professional Baseball Umpires’ Ball–Strike Decisions.