Greg Rybarczyk was born in Lowell, MA and raised in Ayer, MA, graduating from Lawrence Academy in Groton in 1986 and Union College in 1990, where he earned a B.S. in Mechanical Engineering. He was awarded an officer's commission in the U.S. Navy in 1990, and served in that capacity for seven years, fulfilling assignments aboard ship as a nuclear engineer and his ship's navigator, and later ashore as a physics instructor at an ROTC prep school.
Since leaving the Navy in 1997 Greg has worked as a reliability engineer, design engineer, Six Sigma
"Black Belt" and "Master Black Belt", and process architect for three major U.S.
& global corporations. In these roles he has made extensive use of data gathering and statistical analysis to solve business problems, making numerous quality improvements to his company's products and saving the company many millions of dollars during his career.
In early 2005, Greg began designing Hit Tracker, which combines several of his interests and talents: baseball, physics, statistics and automated spreadsheet design.
In 2010, Greg licensed the technology to ESPN, who under the name "ESPN HR Tracker" have provided baseball fans with the most accurate home run distances available.
In 2014, Greg joined the front office of the Boston Red Sox as a Baseball Operations Analyst.
Greg lives in Massachusetts with his wife and two children.