Vintage Jake Arrieta might be one the keys to the Phillies' championship aspirations

The Phillies shoved around the hapless Marlins in Miami (PHI 9, MIA 1), and right-hander Jake Arrieta twirled one of his best starts since inking with the Phillies prior to the 2018 season. He became the 18th active pitcher to reach 100 career wins in the process. The numbers on Friday: 

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Jake Arrieta PHI • SP • 49
vs. MIA, 4/12/19
IP7
H5
R1
SO8
BB1

Before we consider, let's apply some necessary context: 

Yes, the Marlins' offense is indeed an unfunny joke (or perhaps funny, depending on your rooting interests), but those swings and misses are impressive in any context. More on that ... 

Really, there's no stronger indicator for a pitcher than swings and misses, and this bodes well, even against the likes of the 2019 Marlins. Speaking of swings and misses, Arrieta's ramped up use of his changeup this season, and it was certainly an effective pitch for him on Friday night. Here's some color-television evidence of that stirring claim: 

And: 

That's peak Arrieta offspeed stuff right there, and you likely whiff at those even if you're not in a Marlins uniform. The quality of that changeup is significant because Arrieta last season was pretty well abused by the opposite side (LHBs put up an OPS of more than .800 against them while striking out just 60 times against 30 unintentional walks in 317 plate appearances). A refined changeup means Arrieta could do a better job of busting the platoon advantage moving forward. 

In Arrieta's first start of the season he struck out six ... but he also walked six. In his second start he cuts those walks down to three ... but he struck out only one batter. Obviously, he made huge strides in his third start of the season at the command-and-control level. In terms of Game Score (a quick-and-dirty Bill James metric that measures a pitcher's dominance or lack thereof in a given start -- 50 is average and anything 90 or higher is an absolute gem), Arrieta's Friday mark of 70 is his highest since Aug. 6 of last season. 

On the whole, Arrieta has been somewhat disappointing since signing that three-year, $75 million pact, but the return of his swing-and-miss capacities is an encouraging sign. The Phillies have championship aspirations after a busy offseason and are obviously concerned about their rotation (the Madison Bumgarner rumors are proof of that), but something of an Arrieta renaissance could strike a blow against those worries. We'll see if what Arrieta flashed is sustainable or if it was just a one-off throwback abetted by one of the worst lineups in the game.

CBS Sports Writer

Dayn Perry has been a baseball writer for CBS Sports since early 2012. Prior to that, he wrote for FOXSports.com and ESPN.com. He's the author of three books, the most recent being Reggie Jackson: The... Full Bio

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