From Andy at Baseball-Reference.com on April 4:
A reader, Xander, pointed out that Matt Garza allowed 12 hits (all singles) in his Cubs debut game. How unusual is this?
By simply setting hits allowed equal to singles, we can see games where all the hits a pitcher allowed were singles. … Virtually all of the top games are from before 1940, probably because extra base hits were markedly rarer back then.
Read the full article here: http://www.baseball-reference.com/blog/archives/10565
Originally published: April 4, 2011. Last Updated: April 4, 2011.