Let’s Get Weird, Again: Extreme Pitcher Stats So Far
Yesterday, I took readers on a tour through small sample theater to examine the extreme and anomalous performances produced by hitters thus far, nearly all of which will come out in the wash as time goes on. Beyond strikeout, groundball, and fly ball rates, all of which stabilize at the 70 batters faced mark, pitching lines may contain all sorts of oddities.
As I did with the batters, here I’ll encourage you to gawk at some of the extremes — both the very, very good and the very, very bad — before they vanish into the ether. Unless otherwise indicated, all stats are through Wednesday. Let’s get weird again…
The Very, Very Bad
8.84 ERA, 8.42 FIP
Whether you’re going by actual runs allowed or focusing on defense-independent outcomes, 25-year-old White Sox righty Reynaldo Lopez entered Wednesday as the worst of the majors’ 83 qualified starters in both ERA and FIP; he was surpassed in the former category by the Angels’ Matt Harvey (9.64 ERA) as the count of qualifiers increased to 93 on Wednesday, but the No Longer Dark Knight’s just not as interesting as Lopez at the moment.
Looking at Lopez’s raw rate stats, it’s not hard to understand why his run prevention has been so shoddy: he’s combining a below-average strikeout rate (17.5%) with a hefty walk rate (14.4%) and an astronomical 3.26 home runs per nine. To throw some gasoline on the fire, there’s also his .345 BABIP, the result of a lot of hard-hit balls; his average exit velocity of 92.7 mph ranks in the seventh percentile, and his .394 xwOBA in the 13th percentile. Ranked 28th on our Top 100 Prospects List heading into 2017 on the strength of a plus-plus fastball and a plus curve, Lopez was pretty serviceable last year (3.91 ERA, 4.63 FIP, and 2.2 WAR in 188.2 innings), but right now, he’s not fooling many hitters; his 21.2% outside-the-zone swing rate is down seven points from last year, while his 89.9% zone contact rate is up four points.
322 wRC+ allowed on four-seam fastballs
Nothing has epitomized the early-season struggles of the defending world champion Red Sox more than Chris Sale’s slow start. Fresh off signing a five-year, $145 million extension, the 30-year-old southpaw has shown anything but the form that has made him a perennial Cy Young contender. Limited to a total of 32.1 regular season and postseason innings since the end of last July due to recurrent bouts of shoulder inflammation and then a slow buildup this spring, he’s been lacking in arm strength. According to Pitch Info, his average four-seam fastball velocity is down nearly three miles per hour relative to last year (from 95.7 to 92.8), which has not only made it much more hittable, but has allowed batters to focus on his breaking ball. Batters are 11-for-21 with a double, a triple, and three homers on plate appearances ending with his not-so-warm heater, for a .524 batting average, 1.095 slugging percentage, and 322 wRC+ against; by comparison, he yielded a .179 average, .321 slugging percentage and 60 wRC+ when throwing that pitch last year. What’s more, where batters whiffed at 14.8% of his four-seamers last year, they’ve done so against just 1.9% this year — that’s two fastballs out of the 104 he’s thrown. Mercy. Read the rest of this entry »
Jay Jaffe
