Jun 6, 2013, 10:47 AM EST
Last year Hisashi Iwakuma spent the beginning of his rookie season mopping up for the Mariners, but the veteran right-hander from Japan thrived when given a chance to join the starting rotation and has quietly been one of the best pitchers in baseball since.
Lost in the craziness of yesterday’s 16-inning White Sox-Mariners marathon is that Iwakuma tossed eight shutout innings, making him 14-5 with a 2.31 ERA in 29 career starts in the majors. During that time he has a 157/41 K/BB ratio in 183 innings and has held opponents to a .220 batting average.
But wait, here’s the most impressive stat: Among all MLB pitchers at least 175 innings worth of starts since the beginning of last season Iwakuma’s 2.31 ERA as a member of the rotation is the best, followed by Clayton Kershaw at 2.35. No one else is below 2.65.
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