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Or, should the Astros invest in some veteran relievers?

Autumn came a little early to Houston this year. You might not have noticed, but the Astros recently became the first American League team to be formally eliminated from the playoffs. It’s not that anyone really expected the Astros to contend this year, but then again, I picked the Angels to win the World Series at the beginning of the year. Shows what we know.

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How does the first calendar year of Matt Harvey's career stack up to those of other fast starters?

On Friday night, Matt Harvey held the Nationals to one unearned run over eight innings, walking one and striking out seven to lower his ERA to 2.11. That outing closed the book on his first calendar year in the majors; the previous July 26th, Harvey had debuted against the Diamondbacks, holding them scoreless for 5 1/3 and fanning 11. There’s no particular reason to draw a line after a pitcher’s first calendar year—it’s not a completely arbitrary endpoint, but it’s close—but compartmentalizing helps us humans make sense of things. So with Matt Harvey mania in full swing, the one-year mark seems like as good a time as any to see how Harvey stacks up historically, and what that might mean.

This is a list of the best first calendar years for pitchers since 1950, sorted by PWARP. That’s just the pitching component of WARP, so Harvey doesn’t get credit for the extra half win or so he earned by going 6-for-18 at the plate last season. (He’s 5-for-48 this year.) Debut year age is seasonal age, or age as of July 1 of each player's rookie season. Fair RA is a measure of pitching quality scaled to run average, not ERA, and considers sequencing, base-out state, batted-ball distribution, and team defense. Fair RA+ is Fair RA relative to the league; 100 is league average, so the higher the number, the better. Each pitcher’s career PWARP is included on the right.

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