Mariners Re-Sign Hisashi Iwakuma to Two-Year Deal

Amid constant rumors of the Mariners opposing the NBA arena, and what seems like an imminent sale, it’s nice to have something to analyze that doesn’t involve wringing our hands over the Mariners doing something the equivalent to when us guys like to go make our friends look stupid in front of otherwise-interested females. The Mariners have become the worst kind of friend.

But the Mariners signed Hisashi Iwakuma to a two-year extension on Friday that could make Iwakuma one of the offseason’s greatest bargains. Don’t let Iwakuma’s modest 0.8 WAR fool you, he’s a bit of a SABR-darling in his own right. You see, the problem with WAR as it relates to pitchers is that it uses FIP, instead of xFIP. Iwakuma gave up significantly more home runs than one would expect based on his opponent’s batted-ball types, and as a groundball pitcher, it seems legitimate that he’s due for a regression in the right direction. Combined with what was a better-than-expected strikeout rate, and a propensity for handing righties, Iwakuma figures to see pretty similar peripheral numbers next year, even in a more hitter-friendly Safeco Field.

I don’t know if the terms of Iwakuma’s deal are officially know at this point, but right now we have Jon Heyman’s knowledge to count on:

Based on prior pitchers with similar skill-sets to Iwakuma I predicted that Iwakuma would receive a deal in the range of three-years, $24-27 million. As it turns out, Iwakuma may have offered the Mariners a bit of a hometown (defacto hometown anyways) discount that was also aided on the other end by an exclusive negotiating window that the Mariners had with Iwakuma. If Iwakuma hadn’t signed by November 3, and had still re-signed with the Mariners, he’d have had to wait until May 15 to pitch for the team.

Iwakuma’s deal essentially works out to either two years, $14 million, or three years, $20 million.

Considering the potential for regression, and the strides that Iwakuma made when his conditioning caught up to the American game, and a 2012 season that rivaled a career average season for fellow-free-agent Anibal Sanchez, but with a higher groundball percentage (52.2 compared to 44.5), the Mariners got a relative bargain. Sure, Sanchez is basically three-years younger, but he figures to cash in for a much higher pay-day than what Iwakuma got.

Now the Mariners have one slot behind Felix Hernandez locked up, and if they ride one more year of Jason Vargas in arbitration, they should create a relatively soft landing for Danny Hultzen and Taijuan Walker in the next couple years.

This probably shouldn’t be the end of the Mariners attempts to solidify their rotation this offseason, especially considering that the strength of this free-agent class is the massive supply of No. 3 starters. However, today answered one of the key questions going into 2013, as Iwakuma may take the ball on the second day of the season.

Do you like Iwakuma's deal?

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  • maqman

    I agree, the M’s got a good deal on a good pitcher. I think he could have gotten 3/$24MM or more from another team too. It also makes Z’s off-season shopping easier by having this out of the way. Additionally it takes some of the pressure off of counting on the Big Three to produce fast. Lastly it helps to retain the teams Japanese audience and possibly attract Otani. I’m expecting them to extend Felix’s contract this off-season too. The new media money, nationally starting next year and locally in 2015 or 2016 will cover the extension.

    • Casey McLain

      Glad to see you back, Maq!

      • maqman

        I still check in every day pretty much, I’m just not into the other local teams as much. I’m glad to see they resigned Perez at a decent price, he will be useful and a decent trade chip. Good to see Z getting after things early. He hasn’t made a misstep yet in my eyes.

      • Casey McLain

        I figured you were lurking out there. You’re like death and taxes when I post about the Mariners.

      • maqman

        You’re a good writer Casey and you know your subject, I’ve always had an affinity for that.

      • Casey McLain

        I’m blushing.