Notes on prospects from lead prospect analyst Eric Longenhagen. Read previous installments here.

Forrest Whitley, RHP, Houston Astros (Profile)
Level: Double-A   Age: 20   Org Rank: 7  FV: 60
Line: 4 IP, 2 H, 1 BB, 7 K, 0 R

Notes
This is the best pitching prospect in baseball, wielding ungodly stuff that spiked when he dropped about 60 pounds throughout his senior year of high school. He’s also on Driveline’s weighted-ball program. He’ll show your four plus or better pitches over the course of an outing. Whitley has yet to allow a run since returning from suspension. The suspension might be a blessing in disguise for Houston, who could now conceivably weave him into their playoff plans without fear of overworking Whitley’s innings count.

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Fringe Five Scoreboards: 2017 | 2016 | 2015 | 2014 | 2013.

The Fringe Five is a weekly regular-season exercise, introduced a few years ago by the present author, wherein that same author utilizes regressed stats, scouting reports, and also his own fallible intuition to identify and/or continue monitoring the most compelling fringe prospects in all of baseball.

Central to the exercise, of course, is a definition of the word fringe, a term which possesses different connotations for different sorts of readers. For the purposes of the column this year, a fringe prospect (and therefore one eligible for inclusion among the Five) is any rookie-eligible player at High-A or above who (a) was omitted from the preseason prospect lists produced by Baseball Prospectus, MLB.com, John Sickels, and (most importantly) FanGraphs’ Eric Longenhagen and Kiley McDaniel* and also who (b) is currently absent from a major-league roster. Players appearing Longenhagen and McDaniel’s most recent update have also been excluded from consideration.

*Note: I’ve excluded Baseball America’s list this year not due to any complaints with their coverage, but simply because said list is now behind a paywall.

For those interested in learning how Fringe Five players have fared at the major-league level, this somewhat recent post offers that kind of information. The short answer: better than a reasonable person would have have expected. In the final analysis, though, the basic idea here is to recognize those prospects who are perhaps receiving less notoriety than their talents or performance might otherwise warrant.

Josh James, RHP, Houston (Profile)
Every time James produces a strong start — an event that has occurred with considerable frequency this season — FanGraphs contributor and traveler within the world of ideas Travis Sawchik sends a note to the present author that reads, “His name is JOSH JAMES.” While I can’t argue with the literal sense of Sawchik’s message — namely, that this right-hander’s given name literally is Josh James — I suspect that my colleague is attempting to communicate something more profound than a single datum from James’s biography. Have I pursued the topic? No. Not because I’m afraid to, either — but rather because I am infested by indifference.

James made one start this week, recording an 11:2 strikeout-to-walk ratio against 23 batters while facing Houston’s affiliate in Fresno (box).

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Sunday’s Mariners-Rays game in Tampa Bay ended in memorable fashion, with Seattle right fielder Mitch Haniger failing to make a sliding catch on Carlos Gomez’s bloop, mishandling the ball while attempting to pick it up, but recovering in time to throw home, where Johnny Field, who had been running on contact from first base, was out by a country mile. Catcher Mike Zunino could have paused to make an omelette between receiving the ball and applying the tag:

The play preserved the Mariners’ 5-4 lead and gave them not just their 41st victory of the season but their 21st in games decided by one run. With the Astros also winning, 8-7 over the Rangers, Seattle and Houston remained tied atop the AL West. If you haven’t been paying attention lately, the Mariners — while missing the suspended Robinson Cano and overcoming a 5.70 ERA/4.77 FIP from Felix Hernandez — have spent every day since June 2 with at least a share of the division lead. They’ve done this despite the fact that the Astros have by far the better run differential — the majors’ best, actually:

Now there’s something you just don’t see every day: two teams whose run differentials differ by more than 100 but are basically even in the standings. Those one-run games are the reason. The Astros, who would be on a 109-win pace if they had merely gone .500 in such games to this point, actually won a pair of ’em on Saturday and Sunday, but when it comes to such those contests, they’re still tied for the majors’ fourth-lowest winning percentage and fourth-lowest win total in one-run games. The Mariners, on the other hand, have five more one-run wins than any other team and eight more than any other AL team, though they’re merely third in winning percentage:

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One of those baseball facts that might stick with me forever is that, after getting traded from the Mariners to the Astros, Randy Johnson put up a 1.something ERA. Specifically, including the playoffs, Johnson appeared in 13 games with Houston, and his ERA was 1.42. To be that dominant, in that era, under those circumstances, after having struggled before the deal — well, I don’t know what else there is to explain. I haven’t forgotten about it for 20 years. I’m sure I’ll remember for at least 20 years more.

We’re living in the middle of a similar fact. One that’s gone on longer, one that must be considered even more impressive. After getting traded from the Tigers to the Astros, Justin Verlander has put up a 1.something ERA. Specifically, including the playoffs, Verlander has appeared in 23 games with Houston, and his ERA is 1.36. In Verlander’s most recent start, against the Yankees, he allowed one run. That’s right on his season average — he’s allowed 12 runs over 12 starts. After allowing seven runs in the season’s first month, he allowed five in the second. Hitting Verlander of late has been more or less impossible.

Verlander was traded last summer, and was immediately good. We’ve already gone through a bunch of stories examining his turnaround, highlighting, especially, the improvement of his slider. That was a common conversation last fall — the one about how Verlander got better by making use of Houston’s slow-motion cameras. Yet Verlander only continues to grow. He remains, you could say, a work in progress, and he’s made a further adjustment in 2018 to get the most out of the pitches he has.

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CLEVELAND — In the seventh inning on Friday at Progressive Field, Astros starting catcher Brian McCann did not come out for his scheduled at-bat. Instead, fellow catcher Max Stassi appeared out of the third-base dugout as a pinch-hitter. Astros manager A.J. Hinch had elected to pinch-hit for his starting catcher with another catcher to face Indians left-hander Tyler Olson, owner of considerable splits. We don’t often see a manager pinch-hit for his starting catcher, but the decision worked: Stassi singled.

The Astros have not exactly made it a regular practice, but it was the eighth time they have pinch-hit with a catcher for a catcher this season in order to gain the platoon advantage. But the Astros are one of the teams that has regularly tried to do this with the left-handed McCann and right-handed Stassi and Evan Gattis. (With McCann going on the DL on Tuesday, the Astros’ aggressive catcher platooning will be placed on hold, probably.)

In an age where managers try to leverage handedness as often as possible, catchers have the lowest platoon advantage (41.4%) among all non-pitchers, according to research assistance from Sean Dolinar. Shortstop is next (42.8%) and is the only position that doesn’t enjoy a platoon advantage the majority of the time. What they share is status as specialized, glove-first positions:

If a club is looking for a position from which to extract more value by facing more opposite-handed pitchers, catcher is the untapped positional market.

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*Or would be, if the season ended today.

We know the Astros’ pitching staff has been absurdly dominant.

The truth is, they’re historically dominant at the moment.

Just a season after the Indians became the first team to strike out 10 batters per nine innings, set a record with a 27.5% strikeout rate, and finish with the highest pitching WAR total of all time (31.7), the Astros are a threat to top those marks.

The Astros have already recorded 11 WAR this season, while the next closest pitching staff, that of the Red Sox, has 7.9. The Astros are on pace to shatter the Indians’ WAR mark, and their 10.35 strikeouts per nine and 29.6% strikeout rate would also be records. Gerrit Cole, Charlie Morton, and Justin Verlander — who was outstanding against Wednesday — all have sub-2.00 ERAs.

(The Astros and Indians met last weekend, with the Astros taking two of three games, and Houston travels to Cleveland for a four-game series beginning Thursday. Get your popcorn ready.) Read the rest of this entry »

This is Jake Mailhot’s third post as part of his May Residency at FanGraphs. A lifelong Mariners fan, Jake now lives in Bellingham, Washington, just a little too far away from Seattle to make it to games regularly, which is sometimes for the best. He is a staff editor at Mariners blog Lookout Landing. He can be found on Twitter at @jakemailhot.

Earlier this year, Jeff Sullivan wrote a pair of articles, each about a pitcher who appeared to be McCullersing. That term, of course, is a reference to Lance McCullersJr., who in 2016 began throwing his excellent curveball more often than his fastball. He’s led all of baseball in curveball usage since then. He wound up throwing his curveball an astonishing 75% of the time in Game Seven of the ALCS last postseason. That appearance was peak McCullersing.

He started off this year throwing his curveball around the same amount as last year, 48% of the time. But when the calendar flipped to May, something changed. Just look at this graph of his secondary pitch usage in 2018.

That’s… interesting. In his start last night (not included here), McCullers threw his curveball around 40% of the time. That’s pretty normal for him. But it’s been less normal for him of late. In his start against the Angels last Monday, McCullers actually threw more changeups than curveballs, the latter pitch representing just 21.4% of his total count for the night. The last time his curveball usage fell below 30% was all the way back on August 3, 2015, during his rookie year.

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Justin Verlander had himself a night in Anaheim on Wednesday, throwing his first complete-game shutout since August 26, 2015 and becoming the 33rd pitcher to notch 2,500 strikeouts. What’s more, he did it in a game where the Astros’ sole possession of first place in the AL West was on the line. It’s just the latest chapter of the now 35-year-old righty’s rebirth, one that has returned him to the upper echelon of the game’s starters and positioned him for a run at the Hall of Fame. The pitcher famous for finding another gear with his fastball late in the game has done just that with his career.

Verlander collected his milestone strikeout against none other than Shohei Ohtani, who foul-tipped a 96 mph heater in the ninth inning:

That was one of seven strikeouts Verlander notched on the night, and yes, he was still Bringing It late. He threw his six fastest four-seamers of the night, and nine of his top 11, in the eighth or ninth innings, all 97.5 mph or above according to Brooks Baseball.

Three of his strikeouts came against Ohtani (the second silver sombrero of his brief MLB career), who while avoiding a strikeout in the fourth inning — and even getting the call on this 87 mph slider — nonetheless wound up with his ankles repurposed into a pretzel, with Verlander supplying the mustard:

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Fringe Five Scoreboards: 2017 | 2016 | 2015 | 2014 | 2013.

The Fringe Five is a weekly regular-season exercise, introduced a few years ago by the present author, wherein that same author utilizes regressed stats, scouting reports, and also his own fallible intuition to identify and/or continue monitoring the most compelling fringe prospects in all of baseball.

Central to the exercise, of course, is a definition of the word fringe, a term which possesses different connotations for different sorts of readers. For the purposes of the column this year, a fringe prospect (and therefore one eligible for inclusion among the Five) is any rookie-eligible player at High-A or above who (a) was omitted from the preseason prospect lists produced by Baseball Prospectus, MLB.com, John Sickels, and (most importantly) FanGraphs’ Eric Longenhagen and Kiley McDaniel* and also who (b) is currently absent from a major-league roster. Players appearing on any updated, midseason-type list will also be excluded from eligibility.

*Note: I’ve excluded Baseball America’s list this year not due to any complaints with their coverage, but simply because said list is now behind a paywall.

For those interested in learning how Fringe Five players have fared at the major-league level, this somewhat recent post offers that kind of information. The short answer: better than a reasonable person would have have expected. In the final analysis, though, the basic idea here is to recognize those prospects who are perhaps receiving less notoriety than their talents or performance might otherwise warrant.

Austin Dean, OF, Miami (Profile)
Selected by Miami in the fourth round of the 2012 draft out of a Texas high school, Dean appeared — when Eric Longenhagen published the Marlins list in February of 2017 — to have fallen into a sort of prospect netherspace, possessing too little footspeed and athleticism for center field but too little offensive ability to sustain a corner-outfield role. The Marlins’ assignments appeared to indicate a lack of enthusiasm, as well: after passing all of the 2016 and -17 seasons at Double-A, Dean began the present campaign there, as well.

In this case, however, Dean quickly earned a promotion, producing a strikeout rate and isolated-power mark that still rank second and sixth, respectively, among the 97 total Southern League batters to record at least 80 plate appearances. The early returns at Triple-A have been promising for a player in his first exposure to a new level. In particular, Dean’s contact skills have translated well: among batters with 50 or more plate appearances, Dean’s strikeout and swinging-strike rates place in the 91st and 97th percentile. Meanwhile, he’s produced roughly league-average power numbers. While the offensive burden of a corner-outfield role remains high, Dean could probably survive with slightly less power on contact than most given his bat-to-ball skills.

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Last week, Trevor Bauer neither confirmed nor denied having made a point about how foreign substances can increase spin rate.

Bauer wants the sport either to enforce rules against pine tar and other illegal, tacky materials used by pitchers (that’s about impossible, as Bauer acknowledges) or make grip-enhancing legal. While employment of a foreign substance resides outside the rules, there is little enforcement of those rules unless they are openly defied.

Spin is thought to be largely an innate skill, difficult to increase dramatically. Generally, the more velocity a pitcher has, the more spin a pitcher is capable of producing. There is a relationship between spin and velocity, so if a pitcher can increase his velocity, he can reasonably expect to increase his spin rate.

There’s certainly incentive to increase spin rate, as there’s a correlation between spin and whiffs. A 300-rpm improvement is equivalent to a couple percentage points of swinging-strike rate. Bauer has said he can increase his spin rate by about 300 rpms by adding a tacky substance to the throwing hand. It’s conceivable that he did something similar to prove a point during the first inning of his start last Monday:

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