Projo Fantasy Sports Blog |
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By Michael Salfino Let's continue our season-ending series on who our stats consider to be lucky and unlucky players by focusing today on jinxed hitters. To isolate luck, we look at average with runners in scoring position (RISP) because, generally, hitters' success or failure here does not repeat year to year to the same degree as broader stats like batting average. We also isolate the percentage of homers on fly balls for hitters who should still be in their power prime. And we assess a hitter's batting average on balls in play, which generally is about .300. Note, though, that balls in play (BIP) do not include homers (by definition, out of play) and that line-drive rate is a good check for outlying numbers as about 75 percent of line drives are hits. First though, as a test of our underlying assumptions, let's look at the players we labeled as unlucky at this time last year. Assuming they received a similar degree of opportunity - and they all did - more of them should have performed better than worse. For context, consider that a significant majority of players should be expected to perform worse than last year - not the 50 percent of players we'd expect. The reasons for this are regression to the mean (average performance for each player as well as average performance for all players), the fact that many poor performers lose their jobs and thus don't get a chance to improve and the number of first-year players with no stat history replacing them. Here are the unlucky hitters and pitchers we highlighted last year and expected to perform significantly better in 2008: Akinori Iwamura (Rays), J.D. Drew (Red Sox), Paul Konerko (White Sox), Stephen Drew (Diamondbacks), Wandy Rodriguez (Astros), Andy Sonnanstine (Rays), Dan Wheeler (Rays) and Jason Frasor (Blue Jays). Iwamura was cited for his poor average with RISP (.184). This year, he improved, but only to .243. So his runs batted in increased 30 percent, but not as much as expected. His other stats held remarkably steady. Let's be tough self-graders and call Iwamura a push. J.D. Drew was expected to increase his rate of homers on fly balls - just 8 percent last year. That rate more than doubled in '08 to over 17 percent. Alas, Drew missed significant time again due to injury. But his OPS improved from .796 to .930, so Drew is a hit. Konerko is a big swing and a miss. Enough said. But Stephen Drew is another big hit: average jumping from .238 to .282 for the exact reason cited here last year: a huge increase in his BIP average (.267 to .312). On the pitching side, Rodriguez, Wheeler and Sonnanstine each repeated their solid K/BB ratios and translated them much better into ERA. They're all big hits. But Frasor is a whiff, though he interestingly has a better ERA than last year despite a far worse K/BB ratio. Five hits and two misses is a nice result and shows we're on the right path with our analysis. Let's try to do even better now in looking only at unlucky hitters, focusing mainly on a stat courtesy of our friends at HardballTimes.com and Baseball Info Solutions: predicted OPS (on-base plus slugging percentage). |
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