Larry Sanders McCoy ( born May 19 , 1941 in Essex , Missouri ) is a former umpire in Major League Baseball who worked in the American League from 1970 to 1999 . He worked in the World Series in 1977 and 1988 . He also umpired in 6 American League Championship Series ( 1973 , 1976 , 1980 , 1986 , 1990 , 1997 ) and 3 All-Star games ( 1978 , 1985 , 1996 ) , calling balls and strikes for the 1985 game . He worked in the American League Division Series in 1981 , 1995 and 1998 . He was the third base umpire on April 20 , 1986 when Roger Clemens became the first pitcher to strike out 20 batters in a nine-inning game . He was also the first base umpire for David Cone 's perfect game on July 18 , 1999 . He was the plate umpire for the Ten Cent Beer Night held by the Cleveland Indians on June 4 , 1974 , that ended in a forfeit for the Texas Rangers . He was also the home plate umpire in Phil Niekro 's 300th career win in Toronto on October 6 , 1985
Ten Cent Beer Night
Ten Cent Beer Night
Larry McCoy (umpire)