The Cubs traded for Justin Wilson and Alex Avila. Below are the projections for the prospects the Tigers received in exchange for their services. WAR figures account for the player’s first six major-league seasons. KATOH denotes the stats-only version of the projection system, while KATOH+ denotes the methodology that includes a player’s prospect rankings.

Jeimer Candelario, 3B (Profile)

KATOH: 4.4 WAR (108th)

KATOH+: 4.3 WAR (83rd)

Candelerio was slashing .266/.361/.507 in the Pacific Coast League this year, with a bunch of doubles and walks. The PCL has surely helped his power numbers a good deal, but his 12% walk rate illustrates that he does a decent job of controlling the strike zone. Defensively, Candelario has been an above-average third baseman this year in the minors. Although he’s been in the Cubs’ system forever, Candelario’s still just 23. A 23-year-old third baseman who can both hit and play average-ish defense is a fine prospect.

To put some faces to Candelario’s statistical profile, let’s generate some statistical comps. I calculated a Mahalanobis distance between Candelario’s Triple-A performance and every Triple-A season since 1991. In the table below, you’ll find the 10 most similar seasons, ranked from most to least similar. The WAR totals refer to each player’s first six seasons in the major leagues. Please note that the Mahalanobis analysis is separate from KATOH. KATOH relies on macro-level trends, rather than comps. The fates of a few statistically similar players shouldn’t be used to draw sweeping conclusions about a prospect’s future. For this reason, I recommend using a player’s KATOH forecast to assess his future potential. The comps give us some interesting names that sometimes feel spot-on, but they’re mostly just there for fun.

…

Isaac Paredes, SS (Profile)

KATOH: 5.2 WAR (76th)

KATOH+: 3.6 WAR (104th)

Despite being just 18 years old, Paredes is already in and has held his own in full-season ball, slashing .261/.341/.399 with a 14% strikeout rate in Low-A. That’s encouraging for an 18 year old, but it’s especially encouraging coming from an 18-year-old shortstop. Scouts are a tad skeptical of Paredes, citing a lack of physical projection and athleticism needed to stick at shortstop long-term. KATOH picks up on this too — by way of his height (5-foot-11) and lack of stolen bases — but still finds him very intriguing due to his combination of youth, contact and defense. As a Low-A hitter, Paredes has a long way to go, but he has several characteristics that often portend to big league success.

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Three minor-ish trades went down on Friday night. The Mets acquired A.J. Ramos from the Marlins for Merandy Gonzalez and Ricardo Cespedes; the Nationals acquired Howie Kendrick from the Phillies for McKenzie Mills; the Orioles acquired Jeremy Hellickson from the Phillies for Garrett Cleavinger and Hyun Soo Kim.  Below are the projections for the prospects who changed hands. WAR figures account for the player’s first six major-league seasons. KATOH denotes the stats-only version of the projection system, while KATOH+ denotes the methodology that includes a player’s prospect rankings.

None of the players dealt last night are top prospects, and as a result, their likelihood of outcomes graphs are heavily skewed towards “no MLB”. Kyle Glaser recently found that fewer than one in five prospects traded at the deadline contribute more than one positive WAR season. All three of these pitchers seem like good bets to fall into that bottom four-fifths.

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The Yankees acquired Jaime Garcia from the Twins for prospects Zack Littell and Dietrich Enns. You may remember that the Twins acquired Garcia less than a week ago. For their trouble, the Twins seemingly got a better return for Garcia than they gave up to acquire him. I have Huascar Ynoa projected for 1.9 WAR (by both KATOH and KATOH+), which is about half as much as Littell and Enns combined. It’s worth noting, however, that the Yankees are facing a 40-man roster crunch, so dealing Littell and Enns clears space for other prospects.

Below are the projections for the Twins’ newest prospects. WAR figures account for the player’s first six major-league seasons. KATOH denotes the stats-only version of the projection system, while KATOH+ denotes the methodology that includes a player’s prospect rankings.

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With Zack Wheeler joining the Mets’ small army of pitchers on the disabled list, the team will turn to 23-year-old Chris Flexen tonight against the Padres. Unless you’re a Mets fan with a deep interest in prospects, there’s a good chance this is your first time hearing Flexen’s name. I’ll admit that I was unaware of him until a couple of days ago when I came across his name while formatting KATOH’s most recent top-100 list.

But despite his obscurity, Flexen has undeniably earned this opportunity with the way he’s pitched this season. He started the year on the DL after having a bone chip removed from his right knee, but has been utterly dominant since returning. In three High-A starts, he pitched to a 2.81 xFIP with a 25% strikeout rate. He was even better in Double-A, spinning a 2.43 xFIP thanks to a 29% strikeout rate.

It’s been a long slog for Flexen, who was originally drafted by the Mets in the 12th round way back in 2012. After a couple of lackluster seasons in the lower levels, he underwent Tommy John Surgery in 2014. He pitched decently in 2016, his first full year after the surgery, but did so with a sub-17% strikeout rate. There was little reason to suspect he was on the verge of a breakout in 2017.

Eric Longenhagen included Flexen in his preseason Mets list, but only in the “Honorable Mention” section. He saw him as being worse than a 40 FV — the equivalent of a spot starter or middle reliever.

He sits 91-94, touching 96, with an average curveball and fringe change. He has a big, sturdy, inning-eating frame but has already had a surgery, and there are scouts who’d like to see if the fastball plays consistently at 96 out of the ‘pen . Others think he’s more of an up-and-down starter.

Eric provided an updated scouting snippet last month.

He has been 92-96, flashing an above-average slider and throwing all four of his pitches for strikes.

Because of scouts’ pessimism, there’s a sizable gap between Flexen’s stats-only KATOH forecast and KATOH+, which incorporates his (lack of) preseason prospect rank. The stats-only version projects him for 5.6 WAR over his first six years, which is good for 66th overall and 13th among pitchers. But that forecast drops to a meager 2.8 WAR once the scouting data is layered in. KATOH+ sees him as a near-certain fringe-player.

And since it looks noticeably different, I also made a stats-only graph. This one gives him a much more realistic chance of racking up more than 4 WAR.

To put some faces to Flexen’s statistical profile, let’s generate some statistical comps. I calculated a Mahalanobis distance between Flexen’s 2017 numbers and every historical season since 1991. In the table below, you’ll find the 10 most similar seasons, ranked from most to least similar. The WAR totals refer to each player’s first six seasons in the major leagues. Please note that the Mahalanobis analysis is separate from KATOH. KATOH relies on macro-level trends, rather than comps. The fates of a few statistically similar players shouldn’t be used to draw sweeping conclusions about a prospect’s future. For this reason, I recommend using a player’s KATOH forecast to assess his future potential. The comps give us some interesting names that sometimes feel spot-on, but they’re mostly just there for fun.

It’s tough to know what to make of Flexen. While his small-sample 2017 numbers have been exceptional, he’s never pitched anywhere near this well before, nor was he ever seen as much of a prospect. But then again, this might simply be an instance of Flexen finally being healthy for the first time in at least three years. I look forward to watching tonight to see how he fares against big-league hitters.

With Dexter Fowler out of commission after suffering a wrist strain, the Cardinals have promoted top prospect Harrison Bader to take over center-field duties. Bader had been crushing Triple-A pitching to the tune of .297/.354/.517, though those numbers are inflated by the run environment of PCL. In his big-league debut last night, Bader doubled and scored the winning run.

Even after accounting for the effects of the PCL, Bader has hit for a healthy amount of power this year, belting 19 homers in 97 games. There’s more to Bader than his power, however. Eric Longenhagen rated him as a 60 runner, which parlays into good baserunning and center-field defense — Clay Davenport’s numbers consistently have him above average in center.

Bader profile isn’t all roses and sunshine, as his strikeout and walk rates both leave much to be desired. These metrics suggest he may have issues getting on base in the majors. Eric also voiced concerns about the prospect of Baders’ swing working against major-league pitching.

Bader has plus bat speed and some raw power, but it’s hard for him to utilize it in games because his swing is so flat and linear. He has to really adjust his lower half to move his barrel up and down in the hitting zone and, while this worked at Double-A, not everyone thinks it’s sustainable in the big leagues. Additionally, Bader has trouble seeing the ball against right-handed pitching, especially breaking balls, over the top of which he often swings. It’s more of a 40/45 hit/power profile which doesn’t play everyday in a corner, but Bader was an above-average runner for me in the Fall League and plus during the season for some scouts with whom I spoke, so some orgs think he can moonlight in center field.

No outlet has ranked Bader in their top 100, presumably for the reasons Eric laid out in his write-up. But my KATOH system disagrees with this assessment. My system pegs Bader for 5.7 WAR over his first six seasons by the stats-only method and 4.5 WAR by KATOH+, which incorporates his prospect ranking. Those marks place him 61st and 73rd, respectively, among prospects.

To put some faces to Bader’s statistical profile, let’s generate some statistical comps. I calculated a Mahalanobis distance between Bader’s 2017 performance and every season since 1991. In the table below, you’ll find the 10 most similar seasons, ranked from most to least similar. The WAR totals refer to each player’s first six seasons in the major leagues.

Please note that the Mahalanobis analysis is separate from KATOH. KATOH relies on macro-level trends, rather than comps. The fates of a few statistically similar players shouldn’t be used to draw sweeping conclusions about a prospect’s future. For this reason, I recommend using a player’s KATOH forecast to assess his future potential. The comps give us some interesting names that sometimes feel spot-on, but they’re mostly just there for fun.

Bader his flaws, but he also has a lot going for him. Most notably, he’s a 23-year-old who’s now succeeded at the highest level of the minor leagues. Sure, his numbers were helped by the PCL. But even if this year’s numbers are largely smoke and mirrors, Bader remains a speedy center fielder with power and passable defense. Those can be quite valuable.

With the trade deadline swiftly approaching, it’s time for some updated KATOH rankings. I know you’re not here to read about assumptions and caveats, so I’ll keep the non-list part of this article short and sweet.

• For each player, KATOH produces a WAR forecast for his first six years in the major leagues. There are drawbacks to scouting the stat line, but due to their objective nature, the projections here can be useful in identifying prospects who might be overlooked or overrated.
• KATOH+ incorporates Baseball America’s midseason top-100 list and Eric Longenhagen’s preseason FV grades for players excluded from BA’s list. Stats-only KATOH does not consider prospect rankings.
• These projections account only for minor-league stats. While I’ve done work with college players, I have not yet attempted to merge college and minor-league data. These projections also do not account for any major-league performance.
• All players with at least 200 minor-league plate appearances or batters faced in 2016 and/or 2017 were considered.
• This isn’t “Chris Mitchell’s Top 100 List,” and certainly not “FanGraphs’ Top 100 List.” This is simply the output from my far-from-perfect statistical model.

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Thoughtless and bad editor Carson Cistulli overlooked this post when Chris Mitchell submitted it on Friday afternoon. That’s the reason it’s appearing on Tuesday.

The Mariners and Cardinals completed one-to-one swap of outfielder Tyler O’Neill and lefty Marco Gonzales on Friday. As Dave Cameron has pointed out, this represented a case of the Mariners trading away future upside for some much-needed, immediate rotation depth. A move of that type is understandable given the state of the Mariners’ rotation and their position in the Wild Card race, but KATOH thinks the gap in value between these two prospects is quite large.

Below are the projections for the three players whom the White Sox receive. WAR figures account for the player’s first six major-league seasons. KATOH denotes the stats-only version of the projection system, while KATOH+ denotes the methodology that includes a player’s prospect rankings.

*****

Tyler O’Neill, OF (Profile)

KATOH: 7.1 WAR (34th overall)
KATOH+: 6.0 WAR (52nd overall)

O’Neill elevated his prospect stock last season, when he slashed .293/.374/.508 at the Double-A level. But he’s had a tougher time at Triple-A this season, hitting only .244/.328/.479. Part of that, however, has to do with playing in a park that’s tough on right-handed hitters. Eric Longenhagen gave him a 50 FV over the winter and listed him as an honorable mention on his top-100 list.

O’Neil is a three-true-outcomes prospect who’s homered, walked, or struck out in over 43% of his trips to the plate this year. His power is his biggest strength, as he’s belted a remarkable 75 homers since the start of the 2015 season while also kicking in 76 doubles and triples. But all that power comes with a lot of strikeouts, as evidenced by his 27% strikeout rate this year.

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Happy Rafael Devers Day!

The highly-touted 20-year-old is slated to make his big-league debut tonight, and will almost certainly provide Boston with a sizable upgrade at the hot corner. Devers slashed .300/.369/.575 at Double-A before hitting a cool .400/.447/.600 in a nine-game stint at Triple-A.

Devers’ biggest strength is his power. After putting up middling power numbers in years past, he smacked 20 homers and 20 doubles in the minors this year. Unlike many power hitters, Devers doesn’t strike out a ton — he’s kept his strikeout rate below 20% throughout his time in the minors.

Devers has quite an exceptional offensive profile, but it’s even more impressive when you consider he’s much more than his hitting. Not only does Devers play one of the more premium defensive positions, but he plays it quite well. He’s been three runs above average at third base this year by Clay Davenport’s numbers, and checked in at +19 (!) runs last year in High-A. Devers’ high-minors performance has been excellent across the board, which is all sorts of encouraging coming from a 20-year-old.

My KATOH system pegs him Devers 11.7 WAR over his first six seasons by the stats-only method and 15.3 WAR by KATOH+, which incorporates his Baseball America ranking. Those marks place him sixth and fourth, respectively, among prospects.

To put some faces to Devers’ statistical profile, let’s generate some statistical comps. I calculated a Mahalanobis distance between Devers’ 2017 performance and every season since 1991. In the table below, you’ll find the 10 most similar seasons, ranked from most to least similar. The WAR totals refer to each player’s first six seasons in the major leagues. 

Please note that the Mahalanobis analysis is separate from KATOH. KATOH relies on macro-level trends, rather than comps. The fates of a few statistically similar players shouldn’t be used to draw sweeping conclusions about a prospect’s future. For this reason, I recommend using a player’s KATOH forecast to assess his future potential. The comps give us some interesting names that sometimes feel spot-on, but they’re mostly just there for fun.

After they shipped Todd Frazier to the Yankees in exchange for prospects earlier this week, the White Sox replaced him on their roster with Yoan Moncada. Moncada was hitting a healthy .282/.377/.447 at Triple-A, highlighted by his 12 homers and 17 steals. He hits for average, hits for power, steals bases, and even draws walks. Very few players can hit like Moncada does while also providing value in the field and on the bases. That’s why he was a fixture at the top of midseason prospect lists this summer. Baseball America and Baseball Prospectus both ranked him No. 1, while Keith Law put him at No. 13.

But for all his strengths, Moncada has some weaknesses that we shouldn’t overlook. Most notably, he strikes out a bunch. Moncada’s struck out in over 28% of his trips to the plate this year. Though it’s been somewhat hidden by his high batting averages, Moncada has had a lot of trouble making contact against minor-league pitchers. This suggests he’ll have even more trouble doing so in the big leagues, which is exactly what happened in Boston last September when he struck out 12 times in 20 plate appearances.

There’s also the matter of Moncada’s defense. He’s primarily played second base since emigrating from Cuba, and the prognosis for minor-league second basemen isn’t great. The fact that he’s already been deemed “not a shortstop” is a knock against him in KATOH’s eyes. Furthermore, his defensive metrics at second base aren’t great. He’s been right around average there by Clay Davenport’s fielding data this year and was several ticks worse than average last year. This suggests he may not be a defensive asset in the infield.

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