Tom Tango, (aka Tangotiger) runs the Tango on Baseball website, where one will find a large number of research pieces devoted to sabermetrics. His inspirations have been Pete Palmer and Bill James, and is thankful for the generosity of Retrosheet and Baseball1 in providing data to the public. He works as a consultant for major league teams in hockey, and has worked as one in baseball. Born and raised in Canada, he now resides in New Jersey with his family.

Mitchel Lichtman has been doing sabermetric research for over 17 years. He is currently the senior analyst for a major league team. He has a B.S. degree from Cornell University and a J.D. from the University of Nevada. He lives in the Finger Lakes Region of N.Y. with his family, three dogs, and three cats.

Andrew Dolphin has been working on sports statistics for over 10 years; some of his work is posted on the Dolphin computer rankings website. He has a B.S. from Harvey Mudd College and a Ph.D. from the University of Washington. He lives in Tucson, Arizona.