» June 17, 1911:
Cards pitcher Bob Harmon allows just three hits in beating Christy Mathewson and the Giants, 2–1. Matty allows just two hits in the loss.
» May 20, 1913:
St. Louis righty Bob Harmon shuts out the Giants on two hits to win, 8–0. The Cards alight on Christy Mathewson for 11 hits and four runs in six innings.
» July 28, 1913: At Robison Field, Christy Mathewson outpitches Bob Harmon for a 4–0 Giants win. Matty allows four hits and walks 2.
» December 12, 1913:
The Pirates clean house in an 8-player swap with the Cardinals. Going to St. Louis is Dots Miller, a 1909 World Series hero, 14-game winner Hank Robinson, 3B Cozy Dolan, infielder Art Butler, and OF Chief Wilson, king of the triple. The Pirates receive pitcher Bob Harmon, 3B Mike Mowry, and 1B Ed Konetchy, whom the Bucs had been after for years.
» August 7, 1915:
For the 2nd time in six weeks, Pirate hurler Al Mamaux combines to throw a doubleheader shut out. This time his partner is Bob Harmon, as Mamaux stops the Phils 6–0 and Harmon follows with a 9–0 win.