Ten MLB Umpires Retiring, Most Since 1999

Gibson makes final call: MLB umpire retires after 24-year career, Sports

Home plate umpires are getting better. Will that hold off the robots?

The Fates of the 22: MLB Umpire Resignations in 1999 – Society for American Baseball Research

Ten MLB umpires are 'set to retire at the end of the month' - the LARGEST turnover since 1999

The Average Umpire Is Almost 50. The Best Ones Might Be in Their 30s. - WSJ

Jackpot Umpire Tom Hallion Retires After Lengthy Career - Close Call Sports & Umpire Ejection Fantasy League

10 MLB Umpires Retire - Baseball Says Bye to 261 Years of On-Field Major League Umpiring Experience

Ten MLB Umpires Retiring, Most Since 1999

Dom Amore: From Andy Baylock's intro course in umpiring at UConn, Jim Reynolds, Dan Iassogna have risen to rank of MLB crew chief – Hartford Courant

Minnesota woman chooses longest road to major leagues: umpiring

A Major Loss Think Blue LA

A Major Loss Think Blue LA

The right time': Kentucky native retires from MLB umpiring after 24 years, Sports