Sometimes, baseball analysis can reveal new truths, things that nobody had ever noticed before. Other times, it can simply confirm what’s already obvious. Meander through Phil Hughes‘ FanGraphs player page and you’ll realize that playing in Yankee Stadium did him zero favors. But you don’t need to know anything about FIP or HR/FB% to understand that Hughes could benefit from pitching in a friendlier environment. He’s going to do that in Minnesota, and while I don’t know exactly what the Twins’ thought process is, I presume it’s in the vicinity of, Hughes is talented, and fewer balls should leave the park going forward. Target Field is bigger than Yankee Stadium, so Hughes stands a chance of bouncing back.

Hughes debuted in the majors in 2007. Since then, 151 pitchers have recorded at least 250 innings both at home and on the road. Hughes’ home ERA is 0.86 points higher than his road ERA, the sixth-highest difference in the pool. His home wOBA allowed is .046 points higher than his road wOBA allowed, the first-highest difference in the pool. Driving this, primarily? Hughes’ home HR/FB% is six percentage points higher than his road HR/FB%, also the first-highest difference in the pool. Hughes allowed more than twice as many dingers in New York as in not-New York, and there’s nothing more damaging than a dinger. The Twins clearly believe that Hughes was at least partially sunk by the home-field bandbox.

We can play with some data from the ESPN Home Run Tracker, on account of I love it. The newest Yankee Stadium is more dinger-happy than the last Yankee Stadium, and this one opened in 2009. The Home Run Tracker has one column titled “# Parks”, and here’s their definition:

# Parks – This value indicates the number of MLB ballparks, out of 30, in which the ball in question would have been a home run, if the ball had been struck in weather conditions of 70 degrees and no wind. Really long home runs could achieve a value of 30, while a particularly weak home run could achieve a value as low as zero if it only made it over the fence in the park in which it was struck due to “help” from wind and/or temperature.

For a really weak home run, let’s arbitrarily set a cap of two. That is, home runs that would have left zero, one, or two parks under standard conditions. Since 2009, there have been 854 such home runs, excluding inside-the-parkers. Over that five-year span, Hughes has allowed 0.4% of all big-league homers. Over the same span, he’s allowed 1.2% of all big-league really weak homers. He’s allowed ten, in other words, all in Yankee Stadium. This is the highest total for any individual pitcher in one environment, beating Bud Norris/Minute Maid at 9, and Ryan Dempster/Wrigley at 8. Hughes hasn’t allowed only weak home runs in New York, but in New York, he allowed a lot of weak home runs.

Incidentally, Yankee Stadium yielded an incredible 17% of all the really weak homers in baseball. Since opening in 2010, Target Field has yielded 0.4%, or a total of three. This is precisely what a lot of people are talking about — there aren’t nearly so many cheap home runs hit in Minnesota, which should give Hughes a boost, in that it won’t give Hughes the boot. This is one of those aforementioned cases where analysis confirms the readily apparent.

I thought it would be fun to take this opportunity to re-visit Hughes’ really weak home runs allowed. All ten of them, in Yankee Stadium, with video and very few words. In the judgment of the ESPN Home Run Tracker, the following ten home runs would have left no more than two of MLB’s 30 ballparks, hit in regular weather. More specifically, one would’ve left two. Six would’ve left one. Three would’ve left zero. I don’t know if allowing a home run can be unlucky, but it can be relatively unlucky, and now ten relatively unlucky Phil Hughes/Yankee Stadium home runs, all from between 2010-2013.

JUNE 19, 2010

Batter: Jose Reyes

Jose Reyes Distance: 356 feet

356 feet Speed off bat: 94.4 mph

94.4 mph # Parks: 1

JULY 20, 2010

Batter: Maicer Izturis

Maicer Izturis Distance: 336 feet

336 feet Speed off bat: 97.5 mph

97.5 mph # Parks: 0

JULY 25, 2010

Batter: Scott Podsednik

Scott Podsednik Distance: 329 feet

329 feet Speed off bat: 93.3 mph

93.3 mph # Parks: 1



JULY 22, 2011

Batter: Cliff Pennington

Cliff Pennington Distance: 335 feet

335 feet Speed off bat: 99.5 mph

99.5 mph # Parks: 0

APRIL 14, 2012

Batter: Chris Iannetta

Chris Iannetta Distance: 324 feet

324 feet Speed off bat: 90.1 mph

90.1 mph # Parks: 1



JUNE 9, 2012

Batter: Omar Quintanilla

Omar Quintanilla Distance: 354 feet

354 feet Speed off bat: 93.0 mph

93.0 mph # Parks: 1



JULY 16, 2012

Batter: Adam Lind

Adam Lind Distance: 355 feet

355 feet Speed off bat: 100.2 mph

100.2 mph # Parks: 1

JUNE 27, 2013

Batter: Jurickson Profar

Jurickson Profar Distance: 363 feet

363 feet Speed off bat: 97.2 mph

97.2 mph # Parks: 1

JULY 8, 2013

Batter: Billy Butler

Billy Butler Distance: 341 feet

341 feet Speed off bat: 91.5 mph

91.5 mph # Parks: 0

JULY 13, 2013

Batter: Ryan Doumit

Ryan Doumit Distance: 349 feet

349 feet Speed off bat: 105.1 mph

105.1 mph # Parks: 2

Most of those look like what you’d expect, soaring out to right or right-center. That’s where Yankee Stadium is the friendliest, or the meanest, depending on your perspective. It’s a small park. Hughes is a bit of an extreme fly-ball pitcher. It wasn’t a good fit, and the dingers above are evidence. The numbers above are more evidence. Hughes is better suited to a place with a bigger outfield.

But this is the part where I temper your expectations. Absolutely, Target Field should help him more than Yankee Stadium ever did. As noted before, Hughes’ career HR/FB% is six percentage points higher at home than on the road. Part of this is because the homers at home have been inflated. But another part is that homers on the road have been suppressed. Since 2007, Hughes has allowed the ninth-highest home HR/FB%. But he’s allowed the second-lowest road HR/FB%, at 7.0%. That puts him in the company of Clayton Kershaw and Cliff Lee.

As a starter overall, Hughes has posted a 10.6% HR/FB%. Pitchers in his extreme fly-baller peer group have posted a 9.6% HR/FB%, which is lower, but only by a little. Hughes, probably, doesn’t have any special ability to keep the ball in the yard outside of Yankee Stadium, so just as you have to regress the home numbers going forward, you have to do the same to the road numbers in the opposite direction. He’ll get hurt less often in Minnesota, but there are still going to be homers, in all environments. Hughes’ career home/road splits exaggerate the difference, they exaggerate how bad Yankee Stadium was for his skillset.

This is Hughes as a starter:

ERA-: 112

112 FIP-: 106

106 xFIP-: 107

There’s been relatively little variation, outside of a particularly underwhelming 2011. By runs and peripherals, among AL starters, the last three years Hughes has been a little below average. Four years ago, he was right around league average, and that might forever represent his peak. He still has stuff, but pitchers don’t age like hitters do. And while leaving New York will only help Hughes, said help will likely be modest.

Of course, there are two things that need to be acknowledged. For one, even half-decent starting pitching is worth several millions of dollars these days. That’s the market, and if you haven’t mentally adjusted to it yet, that’s on you. For two, there’s some chance that Hughes will alter his pitching pattern in a better environment. Maybe in New York he developed some bad habits, or maybe he changed his style to try to survive. It’s a reach, and you can’t count on it, but maybe he’ll unlock a new level in a bigger stadium. There is room for improvement, of course, so it’s not like this is a deal without upside.

It’s just — I guess the basic conclusion is, don’t overstate the benefit of Phil Hughes leaving Yankee Stadium. It was a bad place for him, and Minnesota is a better place for him, but Yankee Stadium didn’t make him awful and his road numbers are deceptive. He’s not going to allow so many of those embarrassing home runs anymore, not without that right-field porch. But then, we’re talking about ten cheapies over a handful of seasons. There are still going to be homers. There are still going to be runs. Phil Hughes will improve the Twins’ starting rotation, but that might be the very faintest of praise.