Following the end of their Triple-A affiliate’s championship season in the Pacific Coast League, the San Diego Padres promoted a small collection of players to their major-league club on Tuesday. Below are forecasts for the three most notable prospects of that group — Carlos Asuaje, Hunter Renfroe, and Manuel Margot — according to my KATOH system and presented in order of projected WAR.

Note that KATOH represents the WAR projection for the relevant player’s first six years in the majors; KATOH+ is that same thing, except with the player’s Baseball America ranking included as a variable.

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Manny Margot, CF (Profile)

KATOH: 13.0 WAR
KATOH+: 13.6 WAR

Margot’s game centers around speed and contact. The 21-year-old struck out in just 12% of his plate appearances in Triple-A this year on his way to a .307/.355/.442 slash line. He also racked up an exciting 32 steals, while playing elite center field defense by Clay Davenport’s numbers. Margot also isn’t a zero in the power department, as he managed a respectable 46 extra-base hits in the minors this year, including seven homers. He’s one of the very best prospects in baseball by my math, and he’s big-league ready.

To help you visualize what his KATOH projection entails, here is a probability density function showing KATOH+’s projected distribution of outcomes for Margot’s first six seasons in the major leagues.

To put some faces to Margot’s statistical profile, let’s generate some statistical comps for the speedy outfielder. I calculated a weighted Mahalanobis distance between Margot’s performance this year and every Triple-A season since 1991 in which a center fielder recorded at least 400 plate appearances. 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. A lower “Mah Dist” reading indicates a closer comp.

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On Monday, the Oakland Athletics promoted a couple of hitting prospects from Triple-A: Renato Nunez and Matt Olson. Both Nunez and Olson came off the bench on Monday to make their big-league debuts. With Billy Butler out of the picture, and Danny Valencia likely soon to follow, Nunez and Olson might see a decent chunk of playing time these next two weeks.

Olson’s numbers have trended in the wrong direction since his 37-homer season in the Cal League in 2014. He slashed .249/.388/.438 in Double-A last year and only managed to hit .235/.335/.422 in the PCL this year. Throughout his minor-league career, Olson has demonstrated good power and a willingness to draw walks. He’s also a 22-year-old with a 6-foot-5 frame, which suggests he may still have some untapped upside. But his underwhelming performance, defensive limitations and 24% strikeout rate don’t bode particularly well for his future in the show.

KATOH pegs Olson for 3.7 WAR over his first six seasons by the traditional method and 2.8 WAR by KATOH+, which integrates Baseball America’s rankings. To help you visualize what his KATOH projection entails, here is a probability density function showing KATOH+’s projected distribution of outcomes for Olson’s first six seasons in the major leagues.

To put some faces to Olson’s statistical profile, let’s generate some statistical comps for the newest Brewers prospect. I calculated a weighted Mahalanobis distance between Olson’s performance this year and every Double-A season since 1991 in which a first baseman or corner outfielder recorded at least 400 plate appearances. 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. A lower “Mah Dist” reading indicates a closer comp.

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This is a series of scouting thoughts on high-school prospects eligible for the 2017 MLB Draft based on observations from summer showcases. Today’s positional group is center fielders. Links to other positional groups appear below.

Previous editions: Catchers / Middle Infielders / Left-Handed Pitchers.

Center field is a difficult position to play. It requires special straight-line speed but also the ability to read ball trajectory off the bat and hunt down said ball while making in-flight adjustments at a full sprint. As it is such a difficult position to play, not many humans are capable of it and this year’s group of high-school prospects are no different. Below are most all the prospects I’ve seen during summer showcases who I think have a prayer to remain in center field. For the uninitiated, the players who have their own sizeable sections are ranked in the order in which I’d draft them were I forced to do so today, while the players below that are just in alphabetical order.

Jordon Adell, OF, Ballard HS (KY)
Height: 6’3, Weight: 200, Commitment: Louisville

Jordon (or “Jo”) Adell has the best hit/power combination among high schoolers in the 2017 class and has a non-zero chance of playing center field. If that sounds like a player worthy of consideration in the draft’s top 5-10 picks, that’s because it is.

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Oakland right-hander Jharel Cotton made his major-league debut on Wednesday. The results were positive: over 6.1 innings, Cotton conceded just a lone run on two hits — the product, that run, of a homer by the Angels’ C.J. Cron. The process, while entirely adequate, was also slightly less positive: over those 6.1 innings and against those same 22 batters, Cotton recorded just three strikeouts.

In a sense, this start was the opposite of the sort which have defined much of Cotton’s season in the Pacific Coast League this year. Despite producing the best strikeout- and walk-rate differential (K-BB%) among all 57 Triple-A qualifiers in 2016, Cotton also recorded a 4.31 ERA — which, it turns out, is only the 35th-best ERA at Triple-A and even pretty middling among just PCL starters, too. The home runs were a problem for Cotton. Sequencing was a problem for Cotton. Controlling the strike zone wasn’t.

Apart from the runs he allowed and the runs he might have been expected to allow — whatever the discrepancy there — Cotton exhibited one quality yesterday that he’s exhibited all of this season and all of last season and maybe always since he was just a small child. An excellent changeup, is what. Lead prospect analyst Eric Longenhagen, among others, has described it as a plus-plus pitch — and it’s the presence of that pitch that has largely been credited with allowing Cotton to experience such great success as a professional despite a rather diminutive frame.

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The Houston Astros have summoned David Paulino from the minor leagues to make his big-league debut against the Indians today. Paulino was utterly dominant in the minors this year. Splitting time between Double-A and Triple-A, the 6-foot-7 righty whiffed 29% of batters faced on his way to a 2.00 ERA and 2.24 FIP. Somewhat quietly, Paulino put together one of the best seasons in the minors in 2016.

Paulino had shown flashes of excellence in the past, but his triumphs in the low minors have been regularly interrupted by injury. He put up a 2.63 FIP across three levels of A-ball last year, and was missing bats in rookie ball as far back as 2011. But his 2016 campaign marks the first time he’s logged anything resembling a full season, and the first time he’s had the opportunity to prove himself against advanced hitters.

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Back at the trade deadline, the Milwaukee Brewers dealt Jonathan Lucroy and Jeremy Jeffress to the Texas Rangers in exchange for prospects Lewis Brinson and Luis Ortiz, along with a player-to-be-named-later. That player now has a name, and it’s Ryan Cordell. Cordell spent all of 2016 playing at the Double-A level, where he slashed a solid .264/.319/.484 with 19 homers and 12 steals. He produced a similar batting line last year, though it was split up between a dominant performance at High-A and an underwhelming showing at Double-A.

Cordell doesn’t have any one skill to separate him from the crowd offensively, but he doesn’t have any massive weaknesses either. He hits for decent power, doesn’t strikeout terribly often and provides some value on the bases. Defensively, he grades out as well above average in the outfield, with the plurality of his games coming in center. Altogether, that makes for a promising young player.

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In June, I talked to Jesse Winker following a 2-for-3 game that included a double and a walk. At the time, a big-league call-up seemed almost imminent. The top outfield prospect in the Cincinnati system was performing well for Triple-A Louisville, and with the Reds in rebuild mode, Great American Ballpark loomed right around the corner.

I wrote up the interview, then decided to hold it until the call-up came. Days later, Winker hurt his wrist and missed the next three-and-a-half weeks. Upon his return, he went 20-for-50 — albeit with limited power — while, 100 miles north, the big-league club continued to swim against the tide.

August came and went, and Winker went nowhere. As Reds fans scratched their heads, he remained in Louisville where he celebrated his 23rd birthday and finished the season with a .303/.397/.394 slash line. Winker went deep just three times in 448 plate appearances — he had 13 long balls last year in Double-A — and walked and struck out an equal number of times (59).

As of today, Winker is still awaiting his first big-league call-up. Three months after it was conducted, the interview won’t wait any longer. Here is what Winker had to say following the June game.

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Winker on his game against the Syracuse Chiefs: “I didn’t know too much about their starter [Paolo Espino]. We did have a scouting report, and I was talking to Hernan Iribarren about how he likes to attack left-handed hitters, but the game kind of dictates itself. With a certain amount of outs and a certain number of guys on base, pitchers are going to attack you a certain way.

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September call-ups are upon us. Now that the minor-league regular season has come to an end, players are getting called up left and right. Some of those players are organizational catchers and journeyman relievers*, but a few of the recent call-ups are prospects who appear to have promising futures in the Show.

*Editor’s note.

With the long weekend, I’ve fallen a bit behind on projecting the prospects who were called up over the past few days. In what follows, I attempt to make up for lost time by projecting several of the players who have recently gotten the call. In case you missed it, I projected Yoan Moncada last week. As usual, KATOH denotes WAR forecast for first six years of player’s major-league career. KATOH+ uses similar methodology with consideration also for Baseball America’s rankings.

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This is a series of scouting thoughts on high-school prospects eligible for the 2017 MLB Draft based on observations from summer showcases. Today’s positional group is middle infielders. Links to other positional groups appear below.

Previous editions: Catchers / Left-Handed Pitchers.

If this is the first post in the series that you’re checking out or just need a refresher, the players who have full paragraphs below are listed in the order I prefer them based on my summer looks. That order will very likely undergo changes between now and June. This year’s group of middle infielders is a little cloudy. The top two prospects for me who are arguably capable of playing SS/2B are likely to be picked at other positions; other than those two players, the group lacks a splashy talent worthy of top-10 or -15 consideration.

Scarce though quality shortstops may be, we’ve been fortunate to have at least one talented enough to merit top-20 consideration in each draft this decade (’10: Manny Machado, ’11: Francisco Lindor: ’12: Carlos Correa and Addison Russell, ’13: J.P. Crawford, ’14: Nick Gordon, ’15: Brendan Rodgers, ’16: Delvin Perez would have gone top 10 if not for failing his pre-draft drug test and Gavin Lux went 20th overall), but that streak may end this season. Players “of note” in the second section are listed in alphabetical order.

Royce Lewis, ATH, J Serra HS (CA)

Height: 6’2, Weight: 188, Commitment: UC Irvine

Lewis played all over the place throughout the summer and is such a good athlete that I think, with time, he could make it work at whatever position he was asked to, save for maybe shortstop. I like him best in center field but also saw him work at second base, where his actions, especially around the bag, are raw but workable. Regardless of position, I think his bat is worthy of first-round consideration. I’ll talk more about Lewis when we cover the outfielders because that’s where I think he ends up, but there’s a non-zero chance he’s drafted as an infielder and I wouldn’t disagree with it.

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Yoan Moncada has absolutely beasted in the minors this year. In 61 High-A games, he hit .307/.427/.496. In 44 Double-A games, he slashed .285/.388/.547. Not to mention his 45 stolen bases. Moncada in an excellent prospect. Very few players can hit like he does while also providing value in the field and on the bases. That’s why he was a fixture at the top of mid-season prospect lists this summer. Baseball America ranked him No. 1 overall,  while Baseball Prospectus and Keith Law both put him in the top five.

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 25% of his trips to the plate this year, including a 31% clip since he was promoted to Double-A. Though it’s somewhat hidden by Moncada’s high batting averages, Moncada has had a lot of trouble making contact against Double-A pitchers. This suggests he’ll have even more trouble doing so in Boston.

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