It seems Stephen Strasburg is underappreciated.
Maybe it’s because of the hype and expectations that surrounded his draft position and prospect pedigree. It doesn’t help that he’s only been able to reach 200 innings once in his career. His durability and total volume of innings are real issues. But when he’s on the mound he has some of the best stuff in the game, and I’m not sure his reputation matches his actual value. Since his return from Tommy John surgery, he has produced the 12th-most WAR amongst all pitchers (20.1).
As I wrote in our positional power rankings, Strasburg’s teammate Max Scherzer is a pretty good comp for Strasburg — on a per-inning basis, at least. Scherzer posted a 31.5% strikeout rate, 6.2% walk rate, and 33.0% ground-ball rate last season. Strasburg finished with marks of 30.6%, 7.4%, and 39.5%, respectively. They’re each 6-foot-4 right-handers. But while they’re carbon copies in terms of size, handedness, rate stats, and stuff, the principle difference is that Strasburg has failed to reach 150 innings in the last two seasons.
But there’s something else, too: it perpetually seems as though Strasburg fails to get all that he can out of his mid-90s fastball, fall-of-a-cliff curveball, and fading changeup. For three straight seasons, and also over the entirety of his career, Strasburg’s ERA has underperformed his FIP. Scherzer, meanwhile, has outpitched his FIP (if just slightly) as a National. Of course, there are a number of factors out of Strasburg’s control with regard to runs that appear on the scoreboard and within his pitching line, but it speaks perhaps to not maximizing his full run-preventing potential. Strasburg’s 3.60 ERA last season was quite a bit removed from his 2.92 FIP.
To his credit, Strasburg was always been in search of ways to improve. Back in 2014, he added a slider, though he decided to discard it after last season, believing it might have played a role in time missed due to a flexor mass strain last season. (Hitters also produced a .302 average and .500 slugging mark against the pitch.)
The big change this year for Strasburg is his decision to scrap his windup. It’s a move often made by relief pitchers, but less commonly adopted by starting pitchers. And for what it’s worth, Strasburg has been better with no runners on base — allowing a career opponent slash line of .211/.266/.333 — as opposed to when runners are on base (.244/.304/.383).
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