November 23, 2009
Order Now The Hardball Times Baseball Annual 2010 is now in development and will ship in mid November! This year's book will feature articles by THT's staff as well as Bill James, Tom Tango and Craig Wright. If you use this link to purchase the Annual, you will be in the first group to receive it and you'll be supporting THT. Most Recent Comments
Introducing Visual Baseball (1)
HR/FB Park Factors (7) Why Baseball Needs a Visual Facelift (5) Building a Retrosheet database, the short form (4) Is peak at age 29? (7) 
Or you can search by:
Gear up for baseball season with Chicago White Sox tickets and New York Yankees tickets. LA Angels tickets, Houston Astros tickets, and Atlanta Braves tickets are hot sellers! You can get Boston Red Sox tickets, San Diego Padres tickets or Chicago Cubs tickets for your favorite baseball fan. Coast to Coast Tickets has the best MLB tickets like Minnesota Twins tickets, LA Dodgers tickets, Milwaukee Brewers tickets, New York Met tickets and St. Louis Cardinals tickets. Find premium Chicago Cubs tickets and other Chicago tickets at JustGreatTickets.com. Chicago Cubs Tickets Chicago Tickets  All content on this site (including text, graphs, and any other original works), unless otherwise noted, is licensed under a Creative Commons License. |
Thursday, May 08, 2008Percival’s changeupPosted by Sal BaxamusaKen Rosenthal takes a look at Troy Percival's newest pitch. It's not everyday that a 38 year-old learns a new changeup. But "learned a new pitch" ranks right up there with "Lasik surgery", "finally healthy," and "best shape of my life" as fake-o excuses for altered performance. What do the data say? According to his player page at Fangraphs, Percival threw the following assortment of pitches last year: Fastball 76% Slider 7% Curveball 13% Changeup 4% This year, in a small sample size: Fastball 77% Slider 1% Curveball 11% Changeup 12% He's nearly abandoned the slider and is throwing a change much more frequently. Whether it's a new changeup or not, we'll have to take his word for. His player card at Josh Kalk's site shows that the change moves left-right like his fastball, but has a sharp downward bite. I don't know if his rarely seen pre-2008 changeup had the same action, though. Percival has pitched very well this year - a 1.52 FIP - so maybe there's something to this new changeup business. Thanks for the scoop, Ken. Sal Baxamusa is a graduate student in chemical engineering. He can be reached here. CommentsLeave a comment:Commenting is not available in this weblog entry. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||