pitchfx stats Stories - Beyond the Box Score
A Few AFL PITCHf/x Leaders
I like the Arizona Fall League. I've been tracking and classifying a lot pitches, thanks to the PITCHf/x installations in Peoria and Surprise. Nearly 10,000 pitches through Saturday's Rising Stars Game. Let's take a look-see at some of my favorite stats. These are based only on PITCHf/x data. Some,...
NLDS Game 1 - Power Yields to Finesse
Cliff Lee's post-season debut turned into a complete game gem. Losing a shutout in the 9th was not completely Lee's fault, but, as it goes with baseball, your success as a pitcher isn't your own, either. Lee's finesse game matched-up against Ubaldo Jimenez and his power game, and came out ahead....
Masters of Deception
J.P. Howell has been the most deceptive pitcher in 2009, Daniel Cabrera the least. I'm defining deception in a simplistic manner: called strikes per takes. But, it's calculated by count, relative to the league average and weighted (by the number of takes in that count against the specific...
Graph of the Day: Expected Run Values (beta)
If it wasn't for bad luck, I wouldn't have no luck at all. But some of these guys have good luck. Using batted ball types (ground/fly/line/pop), I ignore the actual outcomes (single/double/triple/homer/out) and apply park adjusted expected outcomes. That gives me RVAA and rv100 expected, which I...
Pitching Leaderboards - Starters
Returning to some PITCHf/x derived pitching stats, starting with 2009 baselines. Qualified leaders (1000+ pitches available in PITCHf/x) after the jump. Each category has the Top 10 leaders and Bottom 10 trailers. # 293,491 Swing 0.442 Whiff 0.191 In Wide Strike Zone (IWZ) 0.525 Chase...
Graph of the Day: Sinker Run Values
I like sinkers, but who doesn't? Besides hitters, that is. I've classified a lot of pitches this year, but far from all of them. Of the pitchers I've covered at some point, I have nearly 30 pitchers with 70 or more sinkers tagged. Here's how they rank, by rv100 (run value above average per 100...
Updated Pitching Leaderboards
Many people spend long weekends doing things like Spring Cleaning. I certainly qualified. My PITCHf/x data is fresh and better. I've re-tagged events and sorted out issues identifying certain events. I've also updated my run value table, but I'm under estimating the 2009 run environment, so the...
Layering the PITCHf/x Leaderboards
Continuing my series (Part 1) looking at detailed pitcher stats made possible by PITCHf/x data, today I'm going to look at RV100 data by strike zone layer. Remember, RV100 stands for Run Value per 100 pitches and is compared to average. What's a layer? Think of the strike zone and surrounding...
Slicing The Pitch F/X Leader Boards
Back to some RV100 (average run value compared to average of 100 pitches) leaders, this time by lateral slice. "Fat" pitches are the middle ten inches of the plate, "Out" and "In" are the next 7 inches each, outside and inside relative to the hitter respectively, which along with the "Fat" slice...
Not Your Typical Pitching Stats
You know I'm mildy obsessed with PITCHf/x. I often present this metric or that metric, this pitcher, that pitch. Today I'm going with some of those familiar metrics, but by pitcher (not pitch) and using them to build some "2009 Leaderboards". The stats are below the fold, here's what you'll...
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