Brad Thompson breaks a 97-year-old minor league record set in 1907 by Irvin Wilhelm by hurling 57 consecutive scoreless innings. Thompson sets the mark pitching in the Southern League for the Tennessee Smokies, a Double-A affiliate of the St. Louis Cardinals. He falls just two innings short of the professional mark of 59 established by Orel Hershiser in 1988.

On May 19, 2004 — Brad Thompson breaks a 97-year-old minor league record set in 1907 by Irvin Wilhelm by hurling 57 consecutive scoreless innings. Thompson sets the mark pitching in the Southern League for the Tennessee Smokies, a Double-A affiliate of the St. Louis Cardinals. He falls just two innings short of the professional mark of 59 established by Orel Hershiser in 1988.

Source:
Baseball Reference May 19