Few things get baseball fans more excited than the opportunity to begin taking an extraordinary young talent for granted, so baseball circles are abuzz right now with talk of the Orioles’ promotion of top prospect Dylan Bundy. It didn’t at any point appear as if Bundy would see the majors in 2012, so this news comes as a surprise, but few were also counting on the Orioles to remain in the race for this long, and now the circumstances are what the circumstances are. Suddenly, Bundy makes some good sense.

To hear the Orioles tell it, they weren’t going to call Bundy up, then Tuesday night they played the Mariners for seventy innings, so they decided to call Bundy up. It might seem short-sighted to you for the Orioles to change their plans for a top prospect because a September game went longer than expected, but for one thing, the Orioles kind of need to be short-sighted at the moment, and for another, how likely is this to stunt Bundy’s development, really? It doesn’t matter so much that the Orioles changed their plans if the difference for Dylan Bundy is small or inconsequential.

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Wei-Yin Chen gave up two runs in just 5.1 innings Tuesday against the Mariners. The next 12.2 innings all belonged to the Baltimore bullpen. Their response? Six hits, four walks, 16 strikeouts and zero runs, with all but one of those 12.2 innings requiring a shutout just to keep the game going.

As a result, Steve Johnson, Darren O’Day, Tommy Hunter, Jake Arrieta, Pedro Strop, Jim Johnson and Brian Matusz combined for a massive 1.170 WPA on the game. The Orioles bullpen now owns a 12.51 WPA for the whole season, with yesterday’s performance enough to push them over the 1984 Tigers for the highest season bullpen WPA since our reports carry the data (back to 1974). Judging by the historical data, this Orioles bullpen has been the most influential in recent major league history.

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In a couple of weeks, we’re going to be treated to a couple of one-game, winner-take-all showdowns to determine the final playoff team in each league. The addition of the wild card play-in game changes the context of the playoff races in a new and meaningful way, and also creates some interesting questions for a handful of teams. While MLB has had tie-breaking games before, they’ve never been known to be necessary until the final day of the regular season, and teams simply had to make adjustments to play an unscheduled game at the last minute.

Now, however, it’s likely that one or more teams are going to head into the final few days of the regular season essentially certain that they’re going to be involved in the play-in game. For instance, the Braves currently have a seven game lead over St. Louis in the wild card race, and even after sweeping Washington this weekend, they’re still 5.5 games back in the NL East. CoolStandings currently gives the Braves a 96.3% chance of winning one of the two wild card spots, but only a 3.6% chance of winning their division. Barring some kind of epic collapse by either the Braves or Nationals, Atlanta is going to be one of the two NL teams in the play-in game, and they can start planning for that game right now.

And, as part of that planning, they should seriously consider the idea of skipping the starting pitcher entirely.

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Rays reliever Jake McGee has, at this writing, struck out seven consecutive batters. McGee has not, as I was led to believe by a certain other distinguished FanGraphs author, struck out nine consecutive batters. This fact was uncovered embarrassingly late in the research and article-development process. A streak of seven is less impressive and less unlikely than a streak of nine. But a streak of seven is still impressive, and still unlikely, and of course, McGee’s streak of seven is still alive, pending the next plate appearance. So McGee’s streak is still worth writing about. Consider for reference that Aaron Cook registered seven strikeouts through his first ten starts, spanning 237 batters. McGee has done that against 230 fewer batters.

Tampa Bay has a critical series coming up against New York, but they’re coming off a critical series against Baltimore, a critical series in which they got swept. Their Cool Standings playoff odds dropped from about 61 percent to about 27 percent, as the Rays went from looking like favorites to looking like underdogs. They’re left now to lick their wounds and try to bounce back against the Yankees, but one Ray who has nothing to feel bad about is McGee, who did the best against the Orioles that he possibly could have.

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There are rate stats for just about every kind of opportunity a hitter faces in a game. Batting average tells you how often a player reaches base via a hit. On-base percentage tells you how often a player avoids making an out per plate appearance. But what about swings as opportunities?

Last year, I played around with the idea of production per swing. The idea was to examine what hitters gave the most value when they took a swing. The methodology was pretty simple: calculate the Weighted On-base Average (wOBA) each hitter generated using their swings — instead of plate appearances — as the denominator*.

Of course, there is a healthy correlation between actual wOBA and wOBA per swing (.83 in 2012), but less so Isolated Power (ISO). (wOBA/swing and ISO share only a .53 correlation.) Some of the results may not be all that surprising, but many certainly are.

Let’s first look at the top-25 so far this year:

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Over this past weekend, the Orioles split a 4 game series with the New York Yankees. Baltimore was able win 2 games and stay only 1 game behind the Yankess in the AL East standings, even though they were outscored 31 to 23. This trend of winning while being outscored is not uncommon for the Orioles this season.

The most remarkable part about the Orioles keeping pace with the elite teams in the AL is that they have done it with a negative run differential, (608 Runs scored vice 637 Runs Allowed). It may seem that it would not be too uncommon for a team to be a few wins over .500 and have a allowed a few more runs then they have scored, but it isn’t. Only the San Francisco Giants achieved the feat in 2011 (86-76, -17 runs) and no teams in 2010. Since 1962, when both leagues went to 162 games, 54 teams have been able to reach this feat, or just about 1 per season. The average run differential for the teams was -18.6 runs and the average number of games over .500 was 6.8 games.

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Most people will remember the bad out call of Mark Teixeira by Jerry Meals from Saturday’s game against the Orioles. While Teixeira was obviously safe on replay, but perhaps the entire thing could have been avoided if Teixeira had simply run through the bag instead.

There have been a multitude of scientific studies on the merits of running through the bag or diving, including this recent one from ESPN’s Sports Science. The video is worth watching, but the conclusion is definite – running through the bag was 10 milliseconds faster on average than diving, and the difference can be significantly larger if the dive results in too much kinetic friction due to landing in the dirt too early. How good was Teixeira’s dive? Let’s take a look.

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We’ve reached Threat Level Midnight. With last night’s victory over the Yankees, the Orioles are now tied with New York American League East lead. Whatever one makes of the Orioles’ chances, this is surprising for pretty much anyone who made a serious attempt at being objective prior to the season. When is the last time a team coming off of a sub-70-win season that got their old GM fired could turn around and parley (among other things) a couple of good pitchers, a breakout performance from an young outfielder, some “luck” with respect to their run differential, and Joe Saunders into a (potential) divisional championship?

Actually, as you may have guessed already, something very similar happened last year in Arizona.

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It was a really big deal when, on Tuesday, the Orioles beat the Blue Jays and the Yankees lost to the Rays, causing a tie atop the AL East standings. Just weeks earlier, the Yankees had had a ten-game advantage, and losing that kind of edge — to the Orioles! — was unimaginable. Then, Wednesday, the Orioles lost to the Blue Jays and the Yankees beat the Rays, restoring for New York a slim lead. So it was a really big deal when, on Thursday, the Orioles beat the Yankees in Baltimore in a series opener, tying the division once more. The Orioles clearly aren’t going to go away, and while we can’t actually know that, it sounds good, and it gets people amped for the stretch run.

Those who didn’t follow along will see that the Orioles beat the Yankees 10-6. In so doing, the Orioles slugged a half-dozen home runs, and remember that the game was not played in Yankee Stadium. Those who have taken a closer look, or those who watched, will see that the Orioles pulled ahead in the bottom of the eighth after the Yankees staged a massive rally in the upper half. A 6-1 game turned into a 6-6 game, which turned into a 10-6 game. After the Yankees tied it up, they probably felt good about handing the ball to David Robertson. Minutes later, they felt a lot worse.

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Tuesday night, just before the Mariners started playing the Red Sox, ROOT Sports introduced a little graphic showing the Mariners’ record before and after the Ichiro trade, and showing the Yankees’ record before and after the Ichiro trade. If you’ve been paying any attention to baseball, which you probably have, you know that the Yankees haven’t been playing well lately, and you might know that the Mariners have. Why? If you’re a fan of correlation-to-causation alchemy, because of the Ichiro trade. Clearly, Ichiro is toxic. Alternatively, on July 19, the Yankees traded Dan Brewer to the Braves. That could be the problem. There are correlations everywhere. There are correlations everywhere.

Let’s assume, you and I, that it isn’t that simple. There are very complicated reasons behind the relative rise of the Mariners, and there are very complicated reasons behind the relative fall of the Yankees. We’ll stop talking about the Mariners now because they don’t have anything to do with the rest of this article, as we’re going to focus on the AL East. No matter the reasons, there’s no getting around what’s taken place. There’s no changing the standings as they are, and where once the Yankees had a massive lead over everyone else, Tuesday night they dropped into a tie. The Yankees woke up Wednesday without sole possession of first for the first time since June 12. (That was a very long time ago.) (Sort of.)

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