Baseball players do not do the whole game theory thing

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Apparently baseball players throw too many fastballs.  It will take smarter people than I am to figure out if this Means Something or it’s merely interesting.  It’s been a long day, however, and at this point interesting is enough for me:

In the case of baseball, we observe every pitch thrown in the major
leagues over the period 2002-2006 – a total of more than 3 million
pitches. For football, we observe every play in the National Football League for the years 2001-2005 – over 125,000 plays . . . The results obtained from analyzing the football and baseball data are
quite similar. In both cases, we find clear deviations from minimax
play, as evidenced by a failure to equalize expected payoffs across
different actions played as part of mixed strategies, and with respect
to negative serial correlation in actions . . .  In baseball, pitchers appear to throw too many fastballs,
i.e., batters systematically have better outcomes when thrown fastballs
versus any other type of pitch.

Game theory, schmame theory. Maybe ballplayers just want to give him the heat and announce their presence with authority. Didja ever think of that? And maybe those suckers simply teed off on ’em like they knew they were gonna throw a fastball.

Oh . . .

(thanks to Pete Toms for the link)

Angels place Andrew Heaney on 10-day injured list

Andrew Heaney
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The Angels have placed Andrew Heaney on the 10-day injured list with left shoulder inflammation, the club announced Saturday. The move is retroactive to July 17, though it’s not yet certain that he’ll be cleared to pitch again by the end of the month.

It’s an unfortunate development for the 28-year-old southpaw, who has battled inflammation in his pitching elbow on and off since spring training. In fact, his arm issues date back several years, including the shoulder impingement that put him on the shelf in 2017 and the Tommy John surgery he underwent in 2016. With such a complicated medical history, it makes sense that the Angels would want to proceed with caution as they facilitate the lefty’s eventual return to the mound.

Given his ongoing struggles, Heaney has seen mixed results with the club in 2019. Prior to his recent IL assignment, he pitched to a 1-3 record in nine starts with a 5.09 ERA, 3.7 BB/9, and 10.6 SO/9 through 46 innings. Since the end of June, however, his starts have gotten shorter and shorter; he lasted just 4 1/3 innings in his final outing against the Astros, expending a tremendous 103 pitches and issuing two runs, two walks, and five strikeouts during the team’s eventual 7-2 win.

In a corresponding roster move, the Angels claimed lefty reliever Adalberto Mejía off of waivers from the Twins. Mejía, 26, is expected to be activated ahead of Saturday’s game versus the Mariners. Over 13 appearances with Minnesota, he turned in an 8.80 ERA, 7.0 BB/9, and 8.8 SO/9 in 15 1/3 innings.