August 9, 2015
Everything You Could Have Learned This Week
August 3-7, 2015
I was doing some thinking recently, as I am wont to do, and I realized that the vast majority of baseball caps follow a trend: They all use letters to represent the team. For example, the Tigers have the "Old English D," rather than the animal. The Cardinals have the interlocking "STL," rather than the bird. (Although it does appear on the team's alternate cap.) The Cubs have a C, rather than a cute lil' bear. The two exceptions I can think of are the Blue Jays and Orioles, who put the birds on the caps. The Marlins used to have the fish, but that changed when they took the "Miami" moniker. Even the Indians generally moved on to the red "C"! When I own an MLB team, I'm going against the grain. None of my team's branding will have any letters at all: The squad will be called SDFLKSDA LKJAHSDFSN
Offense traditionally goes down in September. Is this related to the increasing strike zone? Perhaps: The 2015 Strike Zone, Through July, by Jon Roegele, FanGraphs
While walk rates have tended to hold fairly flat in September, strikeout rates have traditionally spiked in the final month of the season. Aside from an anomaly in 2011, run scoring has tended to decrease fairly dramatically too as the regular season winds to a close. Perhaps this phenomenon suggests that September call-up pitchers have been ahead of their called-up batter counterparts. Or perhaps as the season’s games become more meaningful down the stretch, managers have ridden their better arms more heavily to increase the league-wide pitching talent level. Whatever the reason, it is clear that at least in recent history, the month of September has suppressed offense relative to the rest of the season.
Relievers, when all is said and done, are who they are: No Relief For Starters, by Russell Carleton, Baseball Prospectus
What's fascinating is that when a reliever had to pace himself, he was clearly using a different, pitch-to-contact approach, but overall results weren't affected much. The way in which he got outs changed somewhat from strikeouts to ground outs and pop flies, and the way he put runners on first changed from walks to singles, but the results were just different. Not better or worse.
Performance at a showcase is going to put a prospect on the radar, but it's not going to make him a high pick, necessarily: Summer Showcase Scouting, by Chris Crawford, Baseball Prospectus
How much can they help/hurt?
Sometimes, breaking balls are just breaking balls! Take Corey Kluber, for example: What is Corey Kluber's Breaking Ball?, by Eno Sarris, FanGraphs
Without the big old hump associated with your traditional 12-to-6 curveball, maybe batters have less of a warning that something with curve-like horizontal movement is coming. So they swing at a fastball and find air instead.
There isn't really a significant relationship between pitchers with more consistent pace and more consistent performance: What does "getting into a rhythm" mean?, by Kevin Ruprecht, Beyond the Box Score
Though there is a slight downward trend of decreasing whiff rate as the standard deviation of pace increases, the trend is not significant. The confidence interval around the trend gets pretty big as the standard deviation of pace gets away from the cluster around 10 seconds. There is also a large amount of variation in whiff rate - from Alexi Ogando at 0 percent to Carter Capps at 28.3 percent. At this point, with this sample of data, I'm not willing to draw any conclusions.
The "three true outcomes" are in constant fluctuation, and walks are not immune either: Where have all the walks gone?, by Russell Carleton, Just a Bit Outside
Baseball has had a long and complicated relationship with the walk. Walks are undeniably positive events (for the hitting team), but they have always had the reputation of… well, it’s just a walk. It’s not that walks are the greatest thing in the world, but they certainly do have value. Like everything else, that value should be put in its proper place. But right now, it looks like the walk shortage is not just some random fluctuation. It looks like we’ve entered a period of time where batters, as a whole, are engaging in behaviors that make walks less likely, although not necessarily the same ones that make strikeouts more likely.
Outfield shifts are being used, but not as much as they probably could be used: Shifting Expectations, by Chris Mosch, Baseball Prospectus
Toronto appeared to have Mauer shifted the most aggressively, but for the most part, we're not seeing anything too crazy. If this is a trend that teams are heading toward, it appears to be in its infancy, as we're currently only seeing it applied in the most extreme of cases and by only a few teams.
Rookie-debut adrenaline is very real, PitchF/X tells us: Luis Severino and Defining the Debut Adrenaline, by Eno Sarris, FanGraphs
We don’t have the debut date for every pitcher in the PITCHf/x era, but we do have 303 pitchers listed. The average debut starter started the game off with 1.3 mph better velocity than he showed in the fifth inning of the same game. That’s a full tick more than the average starter has lost, in-game, this season. So your rookie starter comes out pumping about a tick more than you would expect him to show, based probably on adrenaline.
Projections are becoming more unreliable, and luck is becoming more reliable: Is 2015 The Year Baseball's Projections Failed?, by Rob Arthur, FiveThirtyEight
Strangely, the projections are doing fine at the player level. Neither hitter nor pitcher projections are necessarily to blame for the downturn in team-level forecasts. If anything, PECOTA is better now at projecting rate statistics for batters than it was five years ago, and at the very least it has gotten no worse on the pitching side. Likewise, PECOTA’s ability to nail playing-time estimates (both plate appearances and innings pitched) has only improved over that span. So in the aggregate, it’s hard to detect the slump in team projection accuracy by looking at the performance of individual player forecasts.