When discussing Bryce Harper’s year, the challenge is not to try and show that it’s been great. Rather, the challenge is to show how great his season has been. Harper leads the National League in home runs, and he leads all of major league baseball in batting average, on-base percentage, and slugging percentage, as well. The last player to lead the majors in every triple-slash category was Barry Bonds in his 13-win 2002 season. Only a lack of RBI will prevent Harper from winning a traditional Triple Crown. Perhaps the most impressive number for Harper this season is 204 — that his, his current weighted batting line (wRC+) where 100 equals average. Harper is seeking to become only the 12th player in the last 100 years to hit the 200 makr, and only the 10th in a non-strike season, potentially joining Ty Cobb, Babe Ruth, Lou Gehrig, Rogers Hornsby, Stan Musial, Ted Williams, Mickey Mantle, Mark McGwire, and Barry Bonds.

Before getting to wRC+, a discussion of Harper’s offensive runs above average should be helpful to frame the discussion. Harper’s offensive runs above average this season, shortened to “Off” on the FanGraphs leaderboards and player pages, is 74.2 — currently the 53rd-best mark over the past 100 seasons — and he will have shot to get in the top 40 by the end of the year. Off is a counting number and, due to its fairly direct relationship with wRC+ (Off adds BsR), we can get a general idea of how many runs different wRC+ is worth. From the FanGraphs Glossary:

Weighted Runs Created Plus (wRC+) measures how a player’s wRC compares with league average after controlling for park effects. League average for position players is 100, and every point above 100 is a percentage point above league average. For example, a 125 wRC+ means a player created 25% more runs than a league average hitter would have in the same number of plate appearances. Similarly, every point below 100 is a percentage point below league average, so a 80 wRC+ means a player created 20% fewer runs than league average.

The chart below shows Off, wRC+ for a small collection of players this season.

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This post is not about Yoenis Cespedes’ amazing run of late for the New York Mets. Not really, anyway. You have probably heard about Cespedes since his trade to the Mets. He is hitting .302/.352/.676 with 17 home runs and a wRC+ of 179 in 193 plate appearances with his new club. Even more amazing, from August 12 through September 14, Cespedes hit .323/.379/.805 with 17 homers and a wRC+ of 220 in 145 plate appearances. During this time the Mets went 22-9 and seized control of the National League East from pre-season, early-season, and even most of late-season favorites Washington Nationals. What Cespedes has done is incredible, but he is not the only major league player to have a great run along these lines.

This post is also not about Cespedes’ MVP candidacy. Matthew Kory did a good job breaking that argument down and discussing whether Cespedes’ time in the American League should be a part of the consideration when discussing MVP. What this post is about is recognizing those performances throughout the season on the hitting side that have been up to par with Cespedes’ great run. Some of the performances are from players on winning teams, some are from non-contenders, many of these runs have been covered by various FanGraphs authors as the runs were happening, but they all deserve recognition for playing incredible baseball for a stretch at least a month long.

We’ll start with the very best players in baseball this season. Looking at the top ten in WAR on the season, we have four players from the American League, five players from the National League, and Cespedes, who has split time with both. First, Cespedes’ line, mentioned above.

Yoenis Cespedes and His Incredible Run

	Dates	PA	HR	BA	OBP	SLG	wRC+	Team W-L
Yoenis Cespedes	8/12-9/14	145	17	.323	.379	.805	220	22-9

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In years past, I’ve looked at players who might win the Comeback Player of the Year Award. I don’t know why, but I just like this award. It sort of gets lost in the shuffle of awards season. It’s usually a feel-good story. I’ve felt like it is interesting to put some statistical context to the award. This year is no different. I never did last year’s post, but I did this in 2011, 2012 and 2013.

The methodology remains the same as it did in previous iterations. From the 2013 post:

Just like last year, the criteria is a player who posted 2.5 WAR or less last year, and has posted at least 1.0 WAR this year. Then I cull the list. The general standard is for a player to have roughly 2.0 more WAR this year than last, but this year I’m making an exception for catchers (roughly 1.5 WAR) and relief pitchers (roughly 1.0 WAR), as WAR may not be as fair to them as it is to others.

From there, we have to decide who is really making a comeback. Sometimes, guys just make the leap, or were never really good to begin with. But first, some honorable mentions.

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The Nationals’ season isn’t quite on life support, but there’s been a bad accident, and the family’s been notified. The situation appears to be dire, and while Tuesday brought its own fresh horrors, that wasn’t the day that slaughtered the dream. It’s the most recent event, the currently most upsetting event, but the Nationals weren’t even supposed to be in this situation in the first place. They’ve had problems for weeks, for months, and now they’re about out of time to save themselves and move on to the tournament. The Mets have simply done too much. The Nationals have simply done too little.

The story would be interesting if it were any division race. What makes this one extra interesting is that it’s this division race. The Nationals were expected to run away with the NL East. The Phillies, as assumed, have been bad. The Braves, as assumed, have been bad. The Marlins had the look of being mediocre. The Mets had the look of a fringe contender. The Nationals had the look of a champion. These are our preseason odds. The Nationals were given an 86% chance to win the division. They were projected to clear the Mets by 13 games. If the Nationals won out, and the Mets lost out, the Nationals would clear the Mets by 18 games. This was supposed to be a relative cakewalk. It’s been more of a…nailwalk? I don’t know. It’s been bad, is the point.

So: why? How has this happened? Obviously, the Mets have quite a bit to do with it, but this post is to focus on the Nationals. Where did this go wrong?

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I went to a baseball game in Oakland last night. This wouldn’t have any bearing on this article if not for this: I drove to the game, and in that 30-minute drive to the stadium, the Washington Nationals went from clawing their way back into some sort of contention in the NL East by beating the Mets to looking up October beachfront condo rentals. When I got in the car, there was the prospect of an interesting September division race. When I got out of the car, poof — that was all but gone. One inning, three pitchers, six walks, and six runs after the start of the top of the seventh, the score of the game was tied at 7-7, and all it took was a home run off the bat of Kirk Nieuwenhuis in the eighth to finally sink the Nationals.

If you follow either or both of these teams, yesterday’s seventh inning was an encapsulation of how the season has unfolded. The Mets have been one of the best stories in baseball; the Nats have been 2015’s poster child for the biggest gap between performance and preseason expectations. One of the most alluring things about baseball is how large season trends can play out in the microcosm of a single inning, and so the seventh inning saw a shift in win expectancy inline with the arc of the Nationals’ season, from spring training to today:

At one point, with two out and one on in the top of the seventh, the Nationals had a 99.2% expectation of winning the game. And, while late 7-1 leads are blown in games many times during the course of an entire baseball season, when they happen in this sort of context and with this kind of futility, it’s our responsibility to break them down.

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Around little-league parks, and even on the back fields of certain schools and organizations, you might hear a common refrain from the batting cages. “Chop wood, chop wood,” is how Bryce Harper mimics the coaches he’s heard before. The idea is that a quick, direct path to the baseball — like an ax chop — is the best way to get quickly to the ball and create the backspin that fuels the power.

Turns out, pretty much all of that is wrong.

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Two seasons ago, I ranked the job security of each general manager and listed GM prospects. I think I did a pretty good job with both lists given what we knew at the time, and may do it again as Opening Day 2016 closes in. We’ve had less executive movement in the last few off-seasons than usual and it looks like the regression is happening this year, with four GM jobs currently open and a likely fifth coming soon. This seemed like a good time to cover each of the situations in flux and target some possible changes in the near future, along with some names to keep in mind as candidates to fill these openings.

The Open GM Spots
We have two teams without a top baseball decision-making executive, in Seattle and Milwaukee:

Mariners
The Mariners moved on from (now former) GM Jack Zduriencik recently, a long-rumored move that club president Kevin Mather admitted he waited too long to execute. Mather has said they’re looking for a replacement sooner than later (likely eliminating execs from playoff teams), with GM experience (eliminating most of the GM prospects you’ll see below), and that the team doesn’t require a rebuild (meaning a shorter leash and higher expectations from day one). This should prove to narrow the pool of candidates a good bit, but this is still seen as the best of the currently open jobs.

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The Nationals are in a pickle, and not one of those delicious hipster pickles with fresh dill and organic garlic cloves placed in a mason jar by a guy with lots of tattoos in some nondescript warehouse in Brooklyn. I’m talking a problem pickle. The kind you don’t want to see on your doorstep, the kind some hipster would make a horror film about with a hand-held camera in some nondescript warehouse in Brooklyn. Horror Pickle: The Dill of Death! It would be wonderfully awful! No, the nature of the Washington Nationals’ pickle comes from the lots of losing they’ve done this season — far more than the Mets, that is, who lead them both alphabetically (curse you, ancient Greeks!) and, possibly more importantly if more fleetingly, in the NL East standings.

Much has been said about the Nationals’ collapse, but some portion of their mediocre start falls on the broad shoulders of Stephen Strasburg, who my computer badly wants to call Stephen Starsbug, which needs to be a computer-animated movie starring Chris Pratt. In any case, Strasburg started out the season badly, then he hit the DL, then he pitched three games, then hit the DL again. His inconsistent health has been remarkably consistent. The odd thing was that, in between all these DL stints, Strasburg, one of the best pitchers in baseball since breaking into the majors in 2010, was awful. As Jeff Sullivan wrote about the issue back in May. Strasburg was having command issues, which manifested especially strongly with runners on base. But now he’s back (again) and he’s Stephen Strasburg again! What? How?

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In batted-ball velocity numbers, we’ve got a new toy. It’s hard to know exactly how to use it, as it goes with many new statistical toys. Without even a full year of sample size, we have no idea how accurate the data coming in is, how sticky batted-ball velocity is year to year, or how much of a skill it is. Even worse, the data is incomplete — velocity without angle is somewhat useless, and the angle that’s coming through is only for home runs.

Is there a short-term fix? Is there a way to combine batted-ball velocity with existing stats to make it useful in the short term? I think there might be, and I think the stories of Xander Bogaerts and Adrian Beltre might help us find this patch.

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It’s no secret that the Washington Nationals have fallen short of expectations this season. At 62-61, the unanimous NL East favorites from the preseason sit 5.5 games behind the Mets with a discouraging 19% chance of winning the NL East. Things have been particularly ugly of late, as the Nats have won just 11 of their last 30 games.

As Dave Cameron pointed out last week, several of the biggest culprits for the team’s struggles are members of the team’s offensive core. Anthony Rendon and Ryan Zimmerman have been bad. Jayson Werth’s been worse than that. But perhaps the biggest disappointment has been the team’s shortstop, Ian Desmond, who was projected for the second-highest WAR among Nationals hitters by ZiPS. Desmond’s .229/.279/.384 batting line has put him within spitting distance of replacement level — a far cry from his preseason ZiPS forecast of 4.0 WAR.

Despite his struggles, the Nationals stuck with Desmond over the season’s first four-and-a-half months, trotting him out there in 119 of their 123 games this season. But on Friday, the team began to diverge from the status quo. After weeks of speculation, the Nats finally summoned prospect Trea Turner to the big leagues to help solidify the shortstop position from here on out.

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