How and When does Velocity Change During a Start?
Taking a look at fastball velocity trends of starting pitchers over the course of a typical game.
PITCHf/x
What Starters Throw as the Game Progresses
A look at pitch selection for starting pitchers as they face the same hitters multiple times in the same game.
PITCHf/x Profile: Jose Fernandez
A PITCHf/x look at Jose Fernandez.
PITCHf/x Profile: Justin Masterson
Looking at Justin Masterson through the lenses of PITCHf/x.
Derek Holland's Changeup
The Rangers' southpaw arrived in the big leagues with scouting reports touting his changeup as his best offspeed pitch. We examine the decline of its success at the major league level and a potential rebound in 2013.
Pitch Quality Measure: Location and now Velocity!
If we look only at pitch characteristics like type, location, velocity and movement, can be build a measure of a pitcher that correlates well with actual performance? The quest continues, as we add velocity on top of strike zone location.
PITCHf/x Profile: Ubaldo Jimenez
A PITCHf/x look at Ubaldo Jimenez's downfall.
2013 Closers: Pitch Location vs Velocity
Building on the strike zone pitch location quality metric introduced last week, we look at how 2013 closers fare in locating their pitches in combination with pitch velocity.
Yu Can Do It, Yu Can Do It (Almost) All Night Long
Yu Darvish came oh-so-close to a perfect game to open his 2013 season. What parts of his diverse repertoire did he use to flummox the Astros?
What makes a good pitch within the strike zone?
What makes a pitch within the strike zone successful? We attempt to examine this question by looking at one characteristic of a pitch - its location within the zone.
PITCHf/x Profile: Ryan Vogelsong
Taking a look at Ryan Vogelsong's career.
The Halladay Mystery: Can He Still Be Elite?
Roy Halladay used to be the best pitcher in the National League. Lately, he's looked nothing like himself. What can PITCHf/x and advanced pitching stats tell us about how he's likely to perform in 2013?
A new Smoak? A PITCHf/x look
Justin Smoak has some of us convinced that he is a new hitter from the left-hand side, but let's look at how he produced his September results first.
Can he drive 55? Aroldis Chapman's Fastball
A PITCHf/x look at Chapman and the different levels of his fastball.
Pitchers who move or drop down based on the batter
Taking a look at a group of major league pitchers who shift on the mound or change their arms slots depending on which side of the plate the batter is standing.
PitchF/X Profile: Alex White
What did the Astros see in Alex White, and what can we expect going forward?
Is adding extra oomph on a fastball dangerous?
Examining how pitchers behave as the strikes mount in a plate appearance and whether this behavior could make them more susceptible to injury.
The Anatomy of a Whiff: Changeups
What characteristics of a changeup result in the most whiffs?
The Effect of Velocity and Vertical Movement on GB
Groundballs tend to get overlooked when evaluating a pitcher, and you can learn a fair amount about their ability to get groundballs through velocity and depth.
The Dangers of the Hanging Change-up
Using PITCHf/x to determine how location of the change-up affects home run rates.
A PitchF/X Look at Jarrod Parker
Jarrod Parker pitched his first full season in the majors in 2012, let's take a look at his PitchF/X data.
More on "High Heat" and Whiffs
How well will "High Heat" narrative hold up with a new statistical model and when pitch sequencing is taken into account?
Pitch F/X Park Effects Case Study: Tampa Bay Rays
Raw Pitch F/X pitch type classifications suggest vastly different types of fastballs used in Rays games played at home versus on the road in 2012. We dive in to investigate the matter, looking at factors that affect pitch movement along the way.
Basic Pitch F/X Park Effects
Pitch F/X reports velocity, movement and release point information for every pitch thrown in a major league game. If the same pitch is thrown in Tampa Bay and Seattle, will the recorded pitch metrics be the same? We take a look at basic park effects.
Is "High Heat" a Myth?
Is there statistical evidence to back the assumption that elevated fastballs actually generate more whiffs?
Tommy John Surgery and Pitch Movement, Part I
A look at the pitch movement achieved by pitchers in the years immediately preceding Tommy John as compared to the league average pitcher.
