Taking a Closer Looks at Iwakuma’s Season


With the 2013 season winding down, we thought it would be good to put the season of Hisashi Iwakuma into perspective. A couple of words come to mind: impressive, dominating, masterful. There are a number of great pitchers that have had excellent seasons in 2013, and we hope Kuma finds his name on the ballots of several baseball writers when they vote for the Cy Young Award. The following statistical notes show how dominating he was in his second Major League season:

  • Finished his second Major League season going 14-6 with a 2.66 ERA (65 ER, 219.2 IP) in 33 starts (23 quality starts).
  • Ranks 3rd in the American League with a 2.66 ERA…5th-lowest ERA in Mariners history, trailing Felix Hernandez (2.27 in ’10, 2.49 in ’01) and Randy Johnson (2.28 in ’97, 2.48 in ’95).
  • Among AL leaders also ranks T1st in games started (33), 2nd in innings pitched (219.2), 3rd in opponent batting average (.220), T3rd in quality starts (23), 6th in opponent OPS (.630) and T9th in strikeouts (185).
  • Record 5 no-decisions when pitching at least 6.0 innings with 0 ER allowed, tied for most during the searchable era (since 1916) with Roger Clemens in 2005…posted a 2.88 ERA (27 ER, 84.1 IP) in 13 no-decisions.
  • Ranks 2nd in the AL and set a Mariners single-season record with a 1.006 WHIP (Walks + Hits per IP).
  • Led the Majors and set a Mariners record with 10 starts where he pitched at least 6.0 innings and did not allow an ER (5-0, 5 no-decisions)…Felix Hernandez recorded 9 starts of 6.0 or more IP, 0 ER in 2009.
  • Went 4-0 with a 1.62 ERA (10 ER, 55.2 IP) over his final 8 starts of the season (8/16-9/25) to lower ERA from 3.02 to 2.66.
  • Went 2-0 with a 0.76 ERA (3 ER, 35.2 IP) in 5 starts in September…2nd-lowest ERA in a month in club history (min. 4 GS), trailing only the 0.50 mark by Mark Langston in September 1988 (3 ER, 53.2 IP, 6 GS).
  • Selected to his first All-Star game, but did not pitch due to starting the final game before the All-Star break.
  • Pitched in a career-high 219.2 innings, besting his Japanese career-high of 201.2 IP during his Pacific League MVP season in 2008…IP total was T3rd-most by a Japanese born pitcher trailing only Hideo Nomo (228.1 in 1996, 220.1 in 2002).
  • Ended the season with a streak of 23.0 consecutive scoreless innings, including 8.0 scoreless innings in his season finale Sept. 25 vs. KC.
  • Recorded a career-high 23.2 scoreless innings streak May 26-June 10 (8th-longest in club history)…did not allow an ER in 31.2 consecutive innings (5/26-6/17), the 2nd-longest streak in club history (34.0 IP, Mark Langston, 1988).
  • Was the only MLB pitcher with two scoreless streaks of at least 20.0 innings during the season…joins Freddy Garcia (2001) as the only pitcher in club history with a pair of scoreless innings streaks of at least 20.0 IP in a single season.
  • Recorded 25.0 consecutive scoreless innings on the road to end the season, tied for the longest streak in club history (8/21-9/18)…Brian Holman (6/27-7/19/84) and Randy Johnson (5/25-6/15/94) also had road scoreless streaks of 25.0 innings…recorded the 3rd-lowest road ERA in club history at 2.45, trailing Felix Hernandez (1.99 in ‘09) & Randy Johnson (2.45 in ‘95).
  • Recorded 10 starts without walking a batter, T2nd-most in the AL (Colon – 12, Price – 10) and T2nd-most in club history (Moyer – 11 in 2002)…ranked 3rd in AL with 1.72 BB/9.0 IP and 4th with 4.40 strikeout-to-walk ratio.
  • Tied for the AL lead with 4 starts where he recorded 7 or more strikeouts without allowing a walk (Ervin Santana – KC & David Price – TB).
  • Matched career-high (6 times) with 8.0 innings pitched…was only 2-0 with 4 no-decisions (1.69 ERA) when pitching 8.0 innings.
  • Opened the season going 7-1, 1.79 ERA in his first 14 starts of the season (ranked 2nd in the AL in ERA following 6/10 start vs. HOU).
  • Held opponents to a .184 average with runners in scoring position (26×141) and .111 with RISP/2 outs (7×63).
  • Since making his first MLB start on July 2, 2012, combined to go 22-10 with a 2.66 ERA, the 6th-lowest ERA in the Majors during that span.

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