- Card series: Beginnings: 1880's
- City: Chicago
- Team: White Stockings
- League: National League
August H. Krock (1866-1905) first pitched in the majors for Cap Anson’s Chicago White Stockings in 1888. He had a spectacular rookie season going 25-14 with a 2.44 ERA. Typical of his day, Gus finished what he started. He completed all 39 appearances with four shut-outs. Unfortunately, he struggled thereafter, never winning more than three games in a year. He came back with Chicago in ’89, then bounced to the Hoosiers, Senators and Bisons, exiting MLB after the 1890 season. As he helped Anson’s crew to a second-place finish in ’88, Gus had a face-off with a 40-year-old rookie for Washington, John Greenig. It would be a rare day for a rookie to make his big league debut at such an age and the press took note of the May 9 start. The White Stockings dispatched the hapless Greenig with nine quick runs and Krock was complimented for his steady performance, a five-hitter with Dummy Hoy doing the only damage with a homer and single.
- Before and after his years in the bigs, Gus played for Oshkosh, Milwaukee, and Sioux City in the Northwestern League and Western Association