Justin Masterson threw 104 pitches last night and 103 of them were fastballs

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Justin Masterson shut out the Twins for 7.2 innings last night, allowing just four hits and no walks while striking out six, and remarkably did so while throwing fastballs on 103 of his 104 pitches. Seriously.

His timing was especially amusing because just a few hours earlier Sam Miller wrote a Baseball Prospectus column about all-fastball repertoires and wondered how long it would be before someone went with 100 percent heat in a start.

Masterson was damn close, throwing just one slider among 104 offerings, and Jordan Bastian of MLB.com (at the Twitter urging of an intrigued Miller) talked to the right-hander about why he bothered using the one non-fastball:

Well, you know, we thought we’d probably use it more. That one would hopefully kind of put it in the back of the head like, “Oh, later on in the innings, is he going to throw one here? Is he not?”

Along with that little intro to Game Theory he also said the approach was a case of “don’t change what’s working.” In other words, if the Twins kept showing that they couldn’t hit his fastball why did he need to throw anything else? Masterson got six strikeouts and 15 ground-ball outs while allowing zero extra-base hits, and only a Chris Perez blown save kept him from winning a 1-0 game while throwing one pitch slower than 90 miles per hour.

I’ve been skeptical of Masterson as a starter because I wondered if his lack of secondary pitches would eventually force a move to the bullpen, but that looks kind of silly right now. He has a 2.64 ERA and 101/40 K/BB ratio in 136 innings spread over 20 starts this season and, as Bastian notes, he’s thrown 82 percent fastballs.

Giants hire Gabe Kapler as new manager

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The Giants announced on Tuesday the hiring of Gabe Kapler as manager. Kapler, filling the extremely large shoes of future Hall of Famer Bruce Bochy, inked a three-year deal, Alex Pavlovic of NBC Sports Bay Area reports. Kapler was one of three finalists for the job, beating out Astros bench coach Joe Espada and Rays bench coach Matt Quataro.

Following his 12-year playing career, Kapler was a coach for Israel’s team in the 2013 World Baseball Classic qualifier. He then became an analyst for FS1 before joining the Dodgers’ front office as the director of player development in November 2014. He was involved in three scandals there: one in which he tried to handle a sexual assault incident involving two Dodgers minor league players without telling police, one in which he allegedly discriminated against Nick Francona, a veteran and former baseball operations employee, and an incident that implicated most of the Dodgers’ front office concerning the recruiting of international free agents. The Dodgers reportedly kept a spreadsheet of employees and their level of criminality.

Despite Kapler’s background, the Phillies hired him as their manager ahead of the 2018 season. He would lead the Phillies to an 80-82 record that year and then helped them improve by one game in 2019, finishing at exactly .500 before being fired. Kapler’s tenure in Philly was tumultuous, often drawing ire from the local media and subsequently the fan base for not being tough enough on his players. The Phillies also reportedly had a clubhouse issue in 2018 in which players were playing video games in the clubhouse during games, prompting Carlos Santana to smash a TV with a bat.

Kapler has a history with Farhan Zaidi, the Giants’ president of baseball operations. They worked together in the Dodgers’ front office as Zaidi served as GM from November 2014-18.