[1][2] Guccione has 22 total years of professional umpiring experience, having worked in the Pioneer, Midwest, California, Texas and Pacific Coast leagues before reaching MLB.
[3] Guccione gained his first playoff experience in 2010, umpiring the 2010 American League Division Series between the New York Yankees and the Minnesota Twins.
[7] Guccione was the home plate umpire when 3,000-hit-club-member Miguel Cabrera got his first Major League hit, an 11th-inning walk-off homer for the Florida Marlins against the Tampa Bay Devil Rays on June 20, 2003.
During the 2018 Little League World Series, Guccione umpired two innings of an August 19 game between teams from Hawaii and Michigan.
[10] Guccione was the third base umpire when Domingo German threw a perfect game on June 28, 2023, at Oakland Coliseum.