http://www.baseball-reference.com/blog/archives/181 This and that about baseball stats. Wed, 23 Dec 2009 01:35:28 -0500 http://wordpress.org/?v=2.8.4 hourly 1 http://www.baseball-reference.com/blog/archives/181/comment-page-1#comment-267 birtelcom Mon, 13 Aug 2007 17:31:02 +0000 http://www.baseball-reference.com/sotd/archives/181#comment-267 Great stuff. Just for sake of comparison, Hub Perdue, the pitcher you identified with the highest HR rate in the 1900-1919 period, gave up homers at a 0.42 homers per 9 IP rate. The currently active pitcher with the lowest career HR rate (min. 200 career IP) is Mariano Rivera, whose career HR/9 IP rate is just a tiny amount higher than Perdue's at 0.46. Perdue and Mariano have just about the same number of IP in their careers as well, Perdue at 918 career IP, and Rivera currently at 931 IP. In raw data terms, Mariano has given up 48 HRs, Perdue gave up 43. Great stuff. Just for sake of comparison, Hub Perdue, the pitcher you identified with the highest HR rate in the 1900-1919 period, gave up homers at a 0.42 homers per 9 IP rate. The currently active pitcher with the lowest career HR rate (min. 200 career IP) is Mariano Rivera, whose career HR/9 IP rate is just a tiny amount higher than Perdue's at 0.46. Perdue and Mariano have just about the same number of IP in their careers as well, Perdue at 918 career IP, and Rivera currently at 931 IP. In raw data terms, Mariano has given up 48 HRs, Perdue gave up 43.

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