Last night, Phillies pitcher Roy Halladay pitched a stinker of a game against the Indians. Phillies fans were treated to a bunch of stories on a role player. I’m happy to supply a better narrative instead.
NARRATIVE: Roy Halladay Lost The Pitch that Made Him Roy Halladay.
Halladay’s previous three starts were successes – Baseball Reference gave them Game Scores of 69, 69, and 72, on a scale of 1-100. What helped? He relied heavily on his curveball, which he threw once every four pitches. ~60% of those curveballs fell in for a strike. Halladay threw his cutter less frequently as well. When he did throw it, the pitch landed as a strike ~75% of the time.
What happened last night? Continue reading Better MLB Narratives Using Advanced Statistics
In my first look at the Yards per Attempt statistic in National Football League quarterbacks, I found there was a general correlation between Football Outsiders’ offensive line rankings and Yards per Attempt. Although I’m happy to see that there was some correlation, it made future predictions near impossible because FO owns the offensive line rankings.
In this piece, I’m going to see if we can create a better formula for predicting YPA than the one discussed in this Pro Football Focus article. Jonathan Bales used the average of a quarterback’s previous three seasons to predict future YPA numbers. Let’s see how accurate his predictions were for 2012, and how we can improve them. Continue reading A Unified Theory of Yards Per Attempt in NFL Quarterbacks
This Pro Football Focus article by Jonathan Bales looked at the Yards per Attempt statistic in quarterbacks at the NFL level. He discovered that a quarterback’s Yards per Attempt average over his three most recent seasons will give us a pretty good indication of what he’ll do the following year. Let’s take a look at how his predictions fared, and how we can explain the biggest outlier.
Philip Rivers, San Diego – Rivers had a Y/A average of 8.5 over the past three seasons, despite putting up 7.9 Y/A in 2011. We should have seen that number move toward the average, but through week 14 in the 2012 season he’s recorded only 6.8 Y/A, a drop of nearly 1.67 Y/A. What are some reasons that Rivers’ Y/A fled even further away from the average? Continue reading Yards per Attempt and 2012 NFL Quarterbacks
If we’re talking about fantasy football sabermetrics, then the Pythagorean Win Expectation has to be a part of the discussion. The PWE is a way to look at the points scored to points against differential and see how that correlate to wins. Bill James is credited for creating it as a way to show which teams were most influenced by luck in baseball. Continue reading Fantasy Football Sabermetrics – Pythagorean Win Expectation