The Red Sox and White Sox play 19 innings under the lights, tying a major league record. Mickey McDermott pitches the first 17 innings for Boston, as Chicago wins this marathon, 5 – 4. Clyde Vollmer has a homer and two singles for the BoSox and 3B Vern Stephens plays the entire game (18 1/3 innings) without a putout. Boston scores twice in the top of the 19th, but the Sox strike back with three runs. For the second night in a row, the two teams set a record for the longest night game. Tomorrow the Sox will set a major league mark when they pull off their 14th double play in four games.

On July 13, 1951The Red Sox and White Sox play 19 innings under the lights, tying a major league record. Mickey McDermott pitches the first 17 innings for Boston, as Chicago wins this marathon, 5 – 4. Clyde Vollmer has a homer and two singles for the BoSox and 3B Vern Stephens plays the entire game (18 1/3 innings) without a putout. Boston scores twice in the top of the 19th, but the Sox strike back with three runs. For the second night in a row, the two teams set a record for the longest night game. Tomorrow the Sox will set a major league mark when they pull off their 14th double play in four games.

Source
Baseball Reference July 13