Monday, October 5, 2015

A Few Charts for the Tampa Bay Rays

Just for grins, I keep a few charts about the Durham Bulls’ parent club, the Tampa Bay Rays. The first is simply the wins and losses over the season, plotted as games above or below .500. As can be seen, back around game 70 in early June the Rays peaked at 10 games above .500. They were at a season low of 6 games below .500 as recently as September 27th. And they wrapped things up in 4th place.

Note: click on a chart for a larger image.

One reason why they finished in 4th is that, oddly enough, their opponents scored more runs than they did. This chart is a running total of the net runs scored minus runs allowed for the year. As can be seen they just barely crept back to a midpoint.

How does this compare to previous years? Here’s the last five. Not quite as bad as last year, but not nearly as good as the previous three years when they made the playoffs either outright or through a wild card slot.

I got intrigued with the “game score” stat this year and tracked the Rays starting pitchers. Game score is sort of “quality start” with a few twists. Here’s a couple of charts that came out of those data.

50 is “average” and for the last several weeks of the season clearly the starters as a group were above average. However, the Rays only won half the games. Conclusion: starting pitching is really important, but the Rays bullpen and hitters just have not been up to par.

Here’s another way of looking at the game score stat, by individual pitchers. Note the number of games and innings pitched. An oddity is that Chris Archer had the best game score of the year (95 on August 20) and the worst (a 3 on September 26)

The last chart has little to do with the Rays, but back on September 1st it seemed that the Rays had at least a remote chance to go after a wild card slot. Here’s how that played out.

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