Below is an analysis of the prospects in the farm system of the Oakland Athletics. Scouting reports are compiled with information provided by industry sources as well as from our own (both Eric Longenhagen’s and Kiley McDaniel’s) observations. For more information on the 20-80 scouting scale by which all of our prospect content is governed you can click here. For further explanation of the merits and drawbacks of Future Value, read this.

55 FV Prospects

Puk had back issues in college and scouts weren’t enamored with his conditioning, but he also featured premium velocity and a plus slider while performing against SEC hitters. He somewhat surprisingly fell to Oakland’s sixth overall selection in the 2016 draft. Reports were even stronger in 2017.

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Below is an analysis of the prospects in the farm system of the Atlanta Braves. Scouting reports are compiled with information provided by industry sources as well as from our own (both Eric Longenhagen’s and Kiley McDaniel’s) observations. For more information on the 20-80 scouting scale by which all of our prospect content is governed you can click here. For further explanation of the merits and drawbacks of Future Value, read this.

65 FV Prospects

Acuna has taken an unusual path to becoming an elite prospect. He signed for $100,000 out of Venezuela in 2014, and less than a year later, the Braves knew they had something special. He had gotten more physical while also exhibiting both better-than-expected plate discipline and also lofty exit velocities. Many expected 2016 to be his coming out party — and, in fact, it was in the eyes of scouts who saw him. He had only 179 plate appearances due to injury, though, so he didn’t get a chance to put up the numbers to really draw attention. In 2017, Acuna made the leap from scout favorite and known toolshed to one of the top prospects in baseball.

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Below is an analysis of the prospects in the farm system of the Texas Rangers. Scouting reports are compiled with information provided by industry sources as well as from our own (both Eric Longenhagen’s and Kiley McDaniel’s) observations. For more information on the 20-80 scouting scale by which all of our prospect content is governed you can click here. For further explanation of the merits and drawbacks of Future Value, read this.

50 FV Prospects

Calhoun doesn’t have a position (he’s been tried at third, second, and in the outfield since college), but he’s going to rake. Scouts have him projected for plus hit and power. He takes huge, beer-league-softball hacks but has the hand-eye coordination and bat control to make it work. He could yank out 30 or more homers as soon as he’s given regular at-bats. The corner-outfield and DH situation in Texas is pretty crowded, but he should start seeing regular big-league time this year. There’s some risk that Calhoun’s aggression is exploited the way Rougie Odor’s has been, but otherwise Calhoun looks like a stable mid-order slugger.
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Below is an analysis of the prospects in the farm system of the World Series champion Houston Astros. Scouting reports are compiled with information provided by industry sources as well as from our own (both Eric Longenhagen’s and Kiley McDaniel’s) observations. For more information on the 20-80 scouting scale by which all of our prospect content is governed you can click here. For further explanation of the merits and drawbacks of Future Value, read this.

60 FV Prospects

When Whitley remade his physique during his senior year of high school, his stuff and command both ticked up, and they’ve continued to do so. He now sits 93-97. Whitley’s size and delivery create good angle up and down in the zone, and he can sink or cut his fastball if he wants to. He has a knee-buckling curveball, a hard slider, and a burgeoning changeup that has quickly developed into a plus pitch. Whitley’s delivery is a bit violent, but he throws strikes and already has impressive control for a pitcher this size, age, and with this kind of stuff. This unique combination of stuff, pitchability, and command allowed Whitley to traverse three levels last year, ending with four impressive appearances at Double-A. Whitley struck out 143 hitters in 92.1 innings. He doesn’t turn 21 until mid-September and has ace ceiling.

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Below is an analysis of the prospects in the Seattle Mariners farm system. Scouting reports are compiled with information provided by industry sources as well as from our own (both Eric Longenhagen’s and Kiley McDaniel’s) observations. For more information on the 20-80 scouting scale by which all of our prospect content is governed you can click here. For further explanation of the merits and drawbacks of Future Value, read this.

45 FV Prospects

Lewis’s pro career just cannot get off the ground. After signing in 2016, he was sent to short-season Everett — a pretty cushy assignment for a top college draftee, but not unusual for a small-school prospect — where he played for a month before tearing his right ACL in late July. When Lewis got back into games during extended spring training in Arizona the next year, he didn’t look ready. His bat speed was intact, but he was noticeably hobbled in a way that scouts thought impacted him on both sides of the ball. They suspected he was rushing back too quickly.

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This is not only one of the final installments of Prospect Week 2018, but also Sung Min Kim’s first piece as part of his February residency at FanGraphs. Sung Min is a staff writer for River Avenue Blues, the biggest independent New York Yankees blog on the web, and has freelanced for various publications including Deadspin, Sporting News, VICE Sports, the Washington Post, and more. He can also be found on Twitter. He’ll be contributing regularly here this month. Read the work of all our residents here.

While I’ve been an ardent follower of Major League Baseball since middle school, my interest in the sport increased considerably when I began following the Asian leagues closely. There are three popular leagues in East Asia: Nippon Professional Baseball (NPB) based in Japan, Korea Baseball Organization (KBO) based in Korea, and the Chinese Professional Baseball League (CPBL) based in Taiwan. I was “born into” the KBO because of my Korean nationality. I slowly learned more about the NPB, though, as I grew up and Korean stars like Tae-Kyun Kim, Samson Lee, Seung-Yeop Lee, etc., headed there to play.

At around the time I was becoming more well acquainted with the particulars of the aforementioned leagues, major-league teams also began showing greater interest in Asian talent. Daisuke Matsuzaka‘s move to Boston was particularly significant to raising the profile of Asian baseball in the States. Yu Darvish and Masahiro Tanaka made their own splashes by bringing posting fees to their respective NPB teams and earning big contracts right out of Japan. Hyun-Jin Ryu’s move to the Dodgers was a landmark event, too, as it represented the first time ever that a Korean-born KBO player landed a big multi-year deal with a major-league club. More recently, of course, the entire Shohei Ohtani storyline — which ultimately landed the two-way star in Anaheim — has unfolded in very public fashion. There are more I’d mention but I’ll spare you for now.

It’s clear that more attention has shifted to the Asian leagues’ top players. There are clear major-league talents on the east side of the globe, and some of them — mostly the star-level types in each respective league — have decided to forego the comfort of their domestic leagues to challenge themselves in a whole new culture.

Some of those experiments have worked out, some have not. It is not easy to predict how a particular player will do in majors because there are so many factors to weigh. Skill is one thing. There are also cultural adjustments, too, and subtle differences to which players must adjust on the field. For instance, early in his MLB career, Hideki Matsui had difficulty dealing with the two-seam-heavy approach utilized by some pitchers. It is difficult to become adequate in all these aspects right away — especially for those players who are expected to start. Nonetheless, many Asian players dream of playing in the majors.

So, here, I present a list — accompanied by scouting reports — of six prospects playing in Asia. For this list, I considered only those players who (a) would be available to leave Asia within the next three years (or, before the start of the 2021 season) and who (b) have expressed interest in coming to the MLB or have, at least, not publicly refuted such a thing. Some players, like top NPB shortstop Hayato Sakamoto of the Yomiuri Giants (dubbed as the “Derek Jeter of Japan”), prefer to stay in Japan. Sakamoto has been ML scouts’ favorite for a while, but it’s possible that he just wants to stay and remain a star of Japan’s most popular team.

Yusei Kikuchi, LHP, Saitama Seibu Lions

Kikuchi is all but guaranteed to appear in the States by 2019. Not only does he features an arsenal that would easily make him a starter in the majors, but also he has strongly expressed desire to come over to the US. Back in 2009, as a top high-school pitching prospect for Hanamashi Higashi (the same high school attended by Shohei Ohtani attended), Kikuchi attracted much MLB interest. For instance, the Rangers recruited Derek Holland to try to persuade Kikuchi to sign with Texas. However, Kikuchi decided to stay in Japan and was drafted in first round by the Seibu Lions, for whom he has pitched ever since.

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We continue Prospect Week 2018 by trying to address a question frequently asked by fans of teams that have just graduated multiple high-level prospects — namely, where would those graduated prospects rank if they were still eligible for the Top 100? We usually don’t have that answer ready off the top of our heads since, as prospect analysts, we aren’t thinking about those players very much. We decided that wasn’t okay, though. So now, whenever we do an updated top-100 or midseason list, we will also provide an update on the prospects who have lost their eligibility in the previous/current year.

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Below is KATOH’s 2018 top-100 prospect list. If you’re a regular FanGraphs reader, you likely know the drill by now. But in case you need a refresher, KATOH produces a WAR forecast for a player’s first six major-league seasons. It incorporates age, offensive performance, defensive performance, and other characteristics from the past two seasons. There are certainly drawbacks to scouting the stat line, but due to their objectivity, the projections can be useful in identifying prospects who might be overlooked or overrated.

I have made a few updates this time around. KATOH now features:

1. The batted-ball data (for both hitters and pitchers) available on our awesome leaderboards. Among other things, this helps KATOH differentiate between fluky and un-fluky high- and low-BABIP hitters.
2. A greater reliance on recent data for the construction of the model and less dependence on data points from 10-plus years ago.
3. Numbers from the Dominican Summer League, which was previously outside of KATOH’s scope

Astute readers might notice that this article does not include a top-100 for KATOH+, the version of KATOH that incorporates scouting grades in addition to the stats. Since Kiley and Eric are still working their way through the organizational lists, I don’t have up-to-date FV grades for every prospect. Rather than plugging in FV grades from a year ago (or more), I am holding off on KATOH+ for now.

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Hi, there. Eric here to tee you up for the conversation you’re about to read. Kiley and I wanted to be as open as possible about how we went about compiling our overall top-100 prospects list (and, it follows, how we compile each organization’s list of prospects). Below we provide some broad exposition about how we determine a prospect’s grade, as well as how we’ve reflected on and tweaked our methodology. We don’t necessarily believe the way we do it is objectively correct, but we want you to know we’re searching for the best way to evaluate players, especially as (for better or worse) major-league baseball evolves.

*****

Kiley McDaniel
So, let’s talk a little bit about how we determine an FV for a prospect. First, readers may want to check out this link about the connection between FV and WAR.

We can start with Colin Moran here since he’s essentially big-league ready. Once we get beyond players like that and into lower-level players, aspects of the process become hypothetical and vague.

Eric Longenhagen
We look to current MLB players as statistical baselines for this. We know the average MLB regular produces 2.0 to 2.5 WAR annually. Last year, both Chase Headley and Mike Moustakas were in that range, though of course they got there in totally different ways. We’ll compile every bit of information we can (scouting reports of our own or from people in baseball, any relevant data from the growing pie of player evaluation) and get an idea of what kind of output a prospect projects to have at maturity, then compare that to baselines created by individual players or league averages at a given position and things like that.

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When publishing our lists — and, in particular, the top 100 — we’re frequently asked who, among the players excluded from this year’s version, might have the best chance of appearing on next year’s. This post represents our best attempt to answer that question.

When attempting to decide which prospects to include here, we ended up with a collection mostly of 45 Future Value players with some 40s mixed in. We’ve separated those players into groups or “types” to make it a little more digestible.

The aim for us here is to focus on guys who we like, but to whom we can’t yet give a 50 FV because they haven’t done enough. Think of them like stocks we are buying. (Or, does that make it insider trading since the measure of success is our own rankings?)

Lower-Level Starting Pitchers
Pitchers who project to be solid MLB starters and who have already proven themselves to some degree in the upper minors tend to be rated a 50 FV or better, rendering them ineligible for this list. The starting prospects here are all lower-level arms and various shades of one type: guys with electric stuff, who have a chance to start, but who face questions about whether they can do it long term. Some are more electric than others and Paddack, for example, doesn’t fit that description: he’s coming off of Tommy John surgery and his best pitch is his changeup. Without surgery, he likely would’ve posted strong enough numbers to appear on the actual top 100.

Edward Cabrera, RHP, Miami Marlins
Dylan Cease, RHP, Chicago White Sox
Brusdar Graterol, RHP, Minnesota Twins
D.L. Hall, LHP, Baltimore Orioles
Hunter Harvey, RHP, Baltimore Orioles
Luis Medina, RHP, New York Yankees
Tobias Myers, RHP, Tampa Bay Rays
Chris Paddack, RHP, San Diego Padres
Cionel Perez, LHP, Houston Astros
Hector Perez, RHP, Houston Astros
JoJo Romero, LHP, Philadelphia Phillies
Jose Soriano, RHP, Los Angeles Angels

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