Going Deep: You Should Be Drafting Jose Martinez

Dave Cherman details why Jose Martinez shouldn't be overlooked in your drafts.

(Photo by Shelley Lipton/Icon Sportswire)

If you’re looking for an undrafted player who could end up providing elite production, look no further. A decent amount has been said on Jose Martinez already, but not enough, as his ADP still sits at 253, 28th among 1B, and 60th among OFs. But Dave, why should I get excited about a 29-year-old career minor leaguer? I’ll tell you why.

First, let’s take a look at his baseline stats from last season:

307 .309 .379 .518 14 47 46 4

Before you start, I get that the PAs, and counting stats leave something to be desired. He spent all of 2017 as a part-time player. As a result, the HRs, runs, and RBI aren’t pretty. But let’s move past that for right now. I’ll address it later. Let’s take a second to admire that triple slash. In a time when batting average is dying in baseball in favor of power, Martinez posted a pristine average and OBP to go along with a very respectable slugging percentage. But let’s look beyond the surface. First, I’m going to break down his 2017 performance to assess how legitimate it really was. Second, I’m going to assess how this breakout happened. Third, we’ll look at his playing time in 2018, as it is definitely a concern.

To the first point and the primary point of this article, how legitimate is his breakout? In short, very. It’s easy to doubt a 28-year-old rookie’s stellar numbers, but let’s look at his breakout in depth, starting with his plate discipline.

  O-Sw% Swing% SwStr% BB% K%
Martinez (‘17) 26.6% 41.5% 8.1% 10.4% 19.5%
Rank (min 300 PAs) 77th 33rd 74th 87th 124th

None of these numbers are elite, but I think it’s worth noting that he ranked in the top 100 in nearly all plate discipline stats, demonstrating a strong ability to get on base. It’s nothing too special, but a 10+ BB% from a rookie is always helpful, as is the sub 20% K rate in a time when more and more guys are striking out over a quarter of the time.

He’s also a balanced hitter with no major weaknesses to any pitch. Take a look at this chart from Brooks Baseball.

First of all, he absolutely punished fastballs and sliders. Looking at more secondary offerings, it appears he struggled against curveballs relative to other pitches, but he actually ranked 41st in xAVG vs curveballs (.268) among hitters with at least 30 PAs against the pitch. Additionally, if you had any concern about his power vs changeups, he ranked 31st in xSLG (.551) among hitters with at least 20 PAs against the pitch, both according to baseball savant. So it doesn’t seem he has any real pitch weaknesses, making him a very difficult out.

These numbers are all well and good, but his strong plate discipline goes well beyond these charts. To truly emphasize it, I have to introduce a concept called “pitch tunneling”. You can read more about it here. The basic idea is that if a pitcher throws two consecutive pitches down the same “tunnel” or path for 80% of the flight of the ball, the hitter will not be able to distinguish the pitches. This excellent article by Joe Schwarz of The Athletic takes a look at pitch tunneling with respect to Martinez and concludes that “he possesses traits that should make him effective versus pitch tunneling. These same traits should go a long way in keeping him out of prolonged slumps as well.” Joe Schwarz is about as bias as they come towards his Cardinals, but it doesn’t make him entirely wrong. The gifs in the article show that Martinez is excellent at reading pitches and this skill will help him maintain consistent performance throughout a full season.

But what do the statcast numbers have to say? Anyone who reads my articles knows I’m a huge proponent of xStats to verify performance and I’ve recently begun dabbling in Baseball Savant as well. The results speak for themselves.

Martinez (‘17) .327 .395 .554 .399 8.2% 15.0% -.134
Rank 1st 13th 18th 12th 79th 20th 8th

You’re reading those numbers right. In his 307 (Fangraphs vs 306 on xStats somehow), he had the highest xAVG in baseball- a near 20 points higher than his actual and incredibly impressive .309 AVG. In fact, VH% is the only major xStat in which he did not finish among the top 20. However, the rank is among players with 75+ PAs. If we readjust to a minimum of 300 PAs, he ranks 55th in VH%, above the likes of Jose RamirezKris Bryant, and Jose Altuve. These numbers rank among the elite in baseball. Only 5 other hitters recorded a .300 xAVG, .550 xSLG, 8.0 VH%, and -.100 OUTs. They are Joey VottoCharlie BlackmonPaul Goldschmidt, Nolan Arenado, and Freddie Freeman, which is special company. Some people are concerned about his .350 BABIP (which was well below his .370 xBABIP), but he hits the ball hard enough that I’m not concerned about it. How do I know he hits the ball hard? Let’s look at baseball savant (min 150 batted ball events):

Baseball Savant Avg Exit Vel. 95+ MPH EV% Barrels/PA
Martinez (‘17) 90.1 MPH 41.9% 7.5
Rank 26th 34th 30th

For those who don’t know, barrels are “batted-ball events whose comparable hit types (in terms of exit velocity and launch angle) have led to a minimum .500 batting average and 1.500 slugging percentage since Statcast was implemented Major League wide in 2015.” You can read more about the stat here. In a sense, it can be compared to xStats’ VH%, as it attempts to capture those hits with the highest percentage of being an extra-base hit, except Martinez fares even better in this stat.

These statistics show Martinez’s elite batted ball ability. His barrels/PA beats out guys like George SpringerAnthony Rizzo, and Carlos Correa, sitting one spot behind reigning NL Rookie of the Year Cody Bellinger. This isn’t particularly surprising from someone of Martinez’s stature- he stands 6’6 and weighs 215 lbs- but it definitely feels a bit out of nowhere.

That brings us to the second section, how did this happen? This Fangraphs article from Dave Cameron explains much of it. To summarize, he came up as a high contact, low power guy. Through the minors, he was consistently a 50+% GB hitter and a heavy pull hitter. Coming into 2016, he had 1 minor league seasons with a GB% below 50%- 49.5% in 2014- and consistently sat in the mid to high 40s in pull rate. Note the difference between his 2015 AAA season in the Kansas City system and his 2017 MLB season with St. Louis.

  PAs GB% LD% FB% Pull%
Martinez (‘15) AAA 396 52.3 20.7 27.0 44.1
Martinez (’17) MLB 307 42.1 26.6 31.3 34.9

Martinez joined the “fly ball revolution” as we say, but the table doesn’t do justice to how he changed his hit profile. Take a look at the spray chart below and you’ll see just how well he spread the ball around in 2017.

Martinez’s spray chart represents an advanced approach at the plate and a threat to push the ball to any area of the field at any moment. Most hitters are not able to hit nearly as many Home Runs to the opposite field as they pull, but Martinez is not most hitters. He pulled 7, drove 6, and sent one to dead center, a fine example of his ability to hit to all fields.

This was all accomplished while Martinez was a part-time player in 2017. Now for the bad news: I can’t tell you that he won’t be a part-time player in 2018. He’s currently the 4th OF and backup 1B. What’s stopping him? Mainly the fact that he’s a terrible fielder. He’s limited to 1B or a corner OF spot and he’s somewhat of a liability when he’s out there.

However, there’s reason for optimism. First of all, he’s done nothing but mash in Spring Training to the tune of a .310/.383/.643 line in 16 games as of writing this. Additionally, he has only 3 strikeouts in 47 PAs, good for a 6.4% K rate, and it’s safe to say the club is taking notice.

“We’re going to have to be creative with everybody. If he keeps hitting, he’s going to play.”Manager Mike Matheny told MLB.com about Martinez. Matt Carpenter, the starting 1B, even said in that same article that he would be willing to move around to 2B and 3B if it meant getting Martinez in the lineup 5 out of 7 games. I’m not sure if Kolten Wong and Jedd Gyorko agree, but Matheny may not care. Martinez’s bat is forcing its way into the lineup.

In shallow leagues, I understand the hesitation to pick him up because he doesn’t have a starting job right now. However, in deeper leagues, I think he’s a must own until someone else takes his at-bats away from him. Regardless, I’m sure you can get him for next to nothing in your league. Dave Cameron wondered in his article if the Cardinals have found the next J.D. Martinez. It’s certainly possible.

Dave Cherman

Across the Seams Manager, also a former player and umpire and New York-based lawyer who spends his free time studying advanced statistics and obsessing over fantasy trades. Will debate with you about most anything.

6 responses to “Going Deep: You Should Be Drafting Jose Martinez”

  1. theKraken says:

    There is a big difference between putting together elite stats as a 28 y/o minor leaguer type, as opposed to an established player that is going to get pitched around to some degree. It is something that is impossible to quantify, but its definitely a factor. I owned him down the stretch last year and he was good, but I doubt that he replicates 2017. I do agree that he is worth a late flier, but I have a hard time taking the breakout stats too seriously.

    I am not buying the flyball revolution on Martinez. His flyball rate was in line with his career. Just showing up to the park in 2017 is a large step towards hitting more home runs – it worked for everyone else. What he did do was hit more line drives last year as he set a career high by a wide margin. That probably isn’t sustainable and explains why xStats love him. I am not an xStats expert, but expected outcomes on line drives (26.6%) seem like it would be high – that is Joey Votto territory. He looks like the same high contact, moderate power guy that he has always been. I don’t doubt that something clicked, but I don’t see the profile change.

    • Dave Cherman says:

      What makes you think the LD increase is unsustainable when he has documented changes to his approach? I don’t believe someone can end up in that elite xStats category through completely unsustainable performance.
      If you can’t see the profile change, I urge you to look at the spray chart again. I couldn’t find one of his minor league hits, but you can look at his pull/center/oppo splits throughout the minors alone to see the drastic improvement.

      • theKraken says:

        Hitting line drives is the hardest thing to do. There are only a few people on the planet that can hit line drives like that. Mike Trout, Miguel Cabrera and Albert Pujols couldn’t – I looked at a few BA title types and Votto was the only one near that level. I think you should always be skeptical of a player joining the elite overnight. I don’t see why xStats would be immune to fluky performances. If a player can put together an unsustainable LD streak, then they will also be producing unsustainable x-data as well. X-data can weed out bloopers and ground balls rolled through a shifted infield, but batted ball data can be just as unsustainable as the outcomes themselves.

        I believe that he has taken steps forward, its more Cameron’s flyball narrative that I don’t think checks out. He didn’t hit more flyballs, he hit more line drives and if that dries up I don’t know what he will be. As Cistulli has pointed out in that article, he is a big guy with the ability to put the bat on the ball – I like that! Everyone always tries to hit line drives, its the GB and FB that you can up sustainably. To be clear, I don’t think he is bad, I just don’t think he will hit anywhere near that many LD. Who knows? Maybe he will trade those LD for FB and it will work out well as he trades AVG for HR – that’s not bad. I just don’t think he is going to hit LD like that. LD inherently have EV, which is what much of this is about. You played and umped BB, you know that it is pretty damn tough to hit a LD weakly. That explains why he is all over those leaderboards, my question is the sustainability. I like him more than CarGo, so I am picking nits.

  2. Turp says:

    Great post and I have Jose-Mart on every one of my teams. Only takes one injury in 3 spots for him to get a full time role. And Matt Carp – he wants to win! Love that guy. Will play anywhere for the team.

  3. Daniel says:

    Hey Dave,

    Struggling on whether to pick up Jose Martinez and dropping either Kiermaier or Brinson for him in my 14 team h2h points league. Should I make the move before he gets scooped up? Thanks.

    • Dave Cherman says:

      I wouldn’t right now. Both of them have much higher floors. Maybe you can flip one of those players?

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