Maybe it was the fact that she spent her formative years in Germany, while I spent most of mine in Jamaica and America’s South, but my mother and I have always disagreed about a fundamental thing when it comes to the weather. For her, she wants the sun. It doesn’t matter if it’s bitter cold and dry; if the sun’s out, she’s fine. I’d rather it was warm. Don’t care if there’s a drizzle or humidity or whatever.

It turns out, when we were disagreeing about these things, we were really talking about pitching. Mostly because life is pitching and pitching is life.

But also because the temperature, and the temperature alone, does not tell the story of pitching in the cold. It’ll make sense, just stick with it.

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If you’d just oblige me by briefly viewing one screenshot and four .gifs, I believe I’ll be able to neatly tie together all the different things that have been going on with J.D. Martinez this season. Let these five visuals serve as a reference point for the remainder of this post.

First up, the screenshot, revealing what the FOX Sports Detroit broadcast team decided to reveal about Martinez’s first at-bat, in graphic form:

Information gathered: the batter’s name is J.D. Martinez, and this is what his face looks like. J.D. Martinez flew out in his first at-bat. There is one out and nobody on in the fourth inning. J.D. Martinez is having an incredible season so far. The Tigers trail, 1-0. Dallas Keuchel is pitching. The umpire will need to look up before Keuchel delivers a pitch.

The umpire has looked up. Keuchel delivers a pitch:

It’s a first-pitch curveball, and Martinez does not swing his bat. You know who doesn’t see too many first-pitch curveballs when they’re batting? Pitchers. Because the pitcher who’s pitching doesn’t really care about the pitcher who’s hitting, so he throws him a first-pitch fastball. Nothing to worry about. J.D. Martinez? Lot to worry about. First-pitch curveball. No swing.

Keuchel, typically a low-ball pitcher, elevates a fastball, up-and-in. No swing.

Another fastball, elevated (but probably more than Keuchel wanted), another no swing.

Swing. Ground ball into the teeth of the shift.

OK. Now let’s try and tie this all together. Lot’s going on with J.D. Martinez this season.

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Shane Greene just had a nice start the other day against the Pirates. He didn’t throw a changeup. He didn’t even throw a curve, according to one pitch-type algorithm. It was all fastballs and… well… breaking balls? Greene features a cutter and a slider, but where one begins and the other ends is tough to decide.

Let’s take a look at all of his non-fastballs from Wednesday, graphed by horizontal and vertical movement and velocity. Maybe you can see two pitches, even if one system saw three. Then flip the tab to see all of his breaking balls over his career. Now how many pitches do you see?

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We have launch angle for all batted balls last year! We’re still in the infancy of Statcast, and there have been some wiggles in the wobble so far, but with the new update to Baseball Savant, it looks like we can search all batted balls for launch angle. I’m giddy.

This should give us the chance to all sorts of great things later, but for now I’ll do something relatively simple that’s relevant to the newest big slugger in the game, Matt Duffy. We all knew he’d bust out like this, and now we know why.

Turn back to Alan Nathan’s excellent post on the long ball yesterday at The Hardball Times. It’s full of nerdy goodness, but there’s also a fun little factoid that runs through most of his analysis: the ideal launch angle for a home run is between 25 and 30 degrees. Given a certain exit velocity, that range is where distance on a batted ball peaks:

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You smell that? It’s baseball’s prospect-list season. The fresh top-100 lists — populated by new names as well as old ones — seem to be popping up each day. With the individual rankings coming out, some organization rankings are becoming available, as well. I have always regarded the organizational rankings as subjective — and, as a result, not 100% useful. Utilizing the methodology I introduced in my article on prospect evaluation from this year’s Hardball Times Annual, however, it’s possible to calculate a total value for every team’s farm system and remove the biases of subjectivity. In what follows, I’ve used that same process to rank all 30 of baseball’s farm systems by the surplus WAR they should generate.

I provide a detailed explanation of my methodology in the Annual article. To summarize it briefly, however, what I’ve done is to identify WAR equivalencies for the scouting grades produced by Baseball America in their annual Prospect Handbook. The grade-to-WAR conversion appears as follows.

Prospect Grade to WAR Conversion

Prospect Grade	Total WAR	Surplus WAR
80	25.0	18.5
75	18.0	13.0
70	11.0	9.0
65	8.5	6.0
60	4.7	3.0
55	2.5	1.5
50	1.1	0.5
45	0.4	0.0

To create the overall totals for this post, I used each team’s top-30 rankings per the most recent edition of Baseball America’ Prospect Handbook. Also accounting for those trades which have occurred since the BA rankings were locked down, I counted the number of 50 or higher-graded prospects (i.e. the sort which provide surplus value) in each system. The results follows.
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Previous editions: Baltimore / Boston / Chicago AL / Chicago NL / Cincinnati  / Cleveland / Colorado.

Earlier this week, lead prospect analyst Dan Farnsworth published his excellently in-depth prospect list for the Detroit Tigers. In this companion piece, I look at that same Detroit farm system through the lens of my recently refined KATOH projection system. There’s way more to prospect evaluation than just the stats, so if you haven’t already, I highly recommend you read Dan’s piece in addition to this one. KATOH has no idea how hard a pitcher throws, how good a hitter’s bat speed is, or what a player’s makeup is like. So it’s liable to miss big on players whose tools don’t line up with their performances. However, when paired with more scouting-based analyses, KATOH’s objectivity can be useful in identifying talented players who might be overlooked by the industry consensus or highly-touted prospects who might be over-hyped.

Below, I’ve grouped prospects into three groups: those who are forecast for two or more wins through their first six major-league seasons, those who receive a projection between 1.0 and 2.0 WAR though their first six seasons, and then any residual players who received Future Value (FV) grades of 45 or higher from Dan. Note that I generated forecasts only for players who accrued at least 200 plate appearances or batters faced last season. Also note that the projections for players over a relatively small sample are less reliable, especially when those samples came in the low minors.

1. Michael Fulmer, RHP (Profile)

KATOH Projection: 3.8 WAR
Dan’s Grade: 50 FV

Fulmer enjoyed a breakout season with the Mets last year and kept it going after he came to the Tigers in the Yoenis Cespedes deal. Both his strikeout rate and walk rate improved as he made the jump from High-A to Double-A in 2015, giving him the lowest ERA — and second lowest FIP — in Double-A last year.

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Other clubs: Braves, Cubs, Diamondbacks, Indians, Orioles, Reds, Red Sox, Rockies, White Sox.

To say the Tigers have had a “type” is an understatement. They have consistently brought in hard-throwing pitchers with either command or secondary-pitch questions, and most of them have ended up as relievers by the time they make it to the big leagues. As Kiley pointed out in last year’s rankings, it’s hard to fault the Tigers’ process, as they continue to develop enough talent to reinforce their big league team via trades, and Mike Ilitch has had no problem spending money to fill in the gaps with free agents.

When 2015 didn’t go according to plan, they were able to replenish their stock by trading from the underachieving parent club. And to their credit, they have started to target a more diverse group of players in the draft and internationally. There is still a lack of impact talent in this group, but a lot of depth and interesting prospects that will contribute to a winning club.

I would draw attention to the rankings that differ from other lists, but honestly, most of the grades are so similar you could shuffle them around and we would be saying the same thing. For just a few from the top end, I buy into Christin Stewart‘s power potential despite him being a recent draftee who didn’t used to have much pop. I would bet I also have more faith in Mike Gerber’s steady skill set than most. Otherwise, some guys are lower, some are higher… I can’t argue with anyone who disagrees on these guys because there aren’t big differences between a lot of them, especially on the pitching side.

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In yet another sign that baseball season is coming ever closer, the arbitration process this year is coming to a close. Many players signed one-year deals before the teams and players exchanged numbers last month, while others exchanged numbers and struck one-year deals. A few players have actually gone to arbitration. Four players — Lorenzo Cain, Josh Donaldson, J.D. Martinez, and A.J. Pollock — agreed to two-year deals with their teams, buying out no free-agent seasons, but ensuring both parties that arbitration would not be necessary next year. These two-year deals are common and typically come with a discount for the team. For the four players who signed this season, however, there was no discount.

The arbitration process is set up to provide a discount to teams in the years just before free agency. The players get their first taste of actual millions while the team retains control of the player at a price much less than what the market would yield — all without having to mark a multi-year commitment. Some players sign extensions which takie them through free agency while others are non-tendered and set free by clubs who think that even the small, arbitration-produced salaries are too much compared to the expected production.

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The Detroit Tigers, though they have yet to win the ultimate prize, have clearly been one of the game’s premier franchises over the past few seasons. Before 2015’s 74-87 disappointment, they had reached the playoffs the previous four seasons, earning one AL pennant and two other ALCS berths over that span. In the five previous seasons, going back to the beginning of the Jim Leyland era, they reached .500 in all but one season. It’s been a while since the Tigers’ immediate future appeared bleak.

Last year had to be quite a shot to the old solar plexus for Tiger fans. A team that had been built for the present, featuring relatively newly acquired mercenaries such as Yoenis Cespedes and David Price, was reduced to trading-deadline seller. They have continued to resist the impulse to rebuild; Mike Ilitch isn’t getting any younger, you know.

Well, in the tightly congested 2016 AL Central, within the just as tightly congested AL, there is reason to be bullish on the Tigers. Yes, it is a stars-and-scrubs type of team, and they do lack impact depth at both the major and minor league levels. There are two veteran players, in particular, who were significantly better than they appeared to be last season, and could be key drivers to a post-hype drive to the front for the club this time around: starting pitcher bounce-back candidates Anibal Sanchez and Justin Verlander.

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Sometimes I’ll write a post I know is going to be popular. Like, some weeks back, I wrote about how the Cubs seem like the best team in baseball, and that was obviously going to be big. Sometimes the popularity of a post takes me by surprise. A good example would be when I wrote over the summer about Ryan Goins taking pitches and hitting other pitches hard. And then there are the posts almost exclusively for the nerds. For the nerdiest of the nerds. For the people who love thinking about baseball simply for the exercise. This is one of those. Nothing contained here is all that important, but this is the stuff I find most interesting, and I touched on this briefly last night when writing about Justin Upton on the Tigers. The Tigers play half the time in Comerica Park, and Comerica Park suppresses strikeouts.

I’ve written about some of these weird park factors before. The obvious park factors don’t require much explanation. It’s easy to see why there are more homers in Colorado. It’s easy to see why there are more triples in San Francisco. It’s confusing, though, to think about why some environments might increase or decrease strikeouts or walks. It feels like those things should happen independent of the ballpark, and the effects tend not to be huge, but effects do exist in some places. Detroit is one of them. People always ask how these factors can be. It’s never easy to know for sure, but that doesn’t mean we can’t have a conversation.

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