The Season’s Worst Home Run
The season’s worst home run was a major-league home run. It was hit clean over a major-league fence, against a major-league pitcher, and it didn’t have to bounce off of the head of a major-league outfielder. The season’s worst home run was, objectively, more physically impressive than anything I’ve ever accomplished. I’ve climbed some tall mountains. It’s like walking up really cold and slippery stairs. Nobody would be amazed by anything I’ve done. I’m sitting here amazed that anyone can hit any major-league pitches.
So the point here isn’t to criticize. Everything in baseball is remarkable. But, very simply, there are better home runs, and there are worse home runs. Not all home runs are equally impressive, correct? It follows, therefore, that there would be a worst home run. A least-impressive impressive thing, if you will. Below, you get to see the worst home run of 2016. It was allowed by Chris Sale, and it was hit by Troy Tulowitzki.
When I’d write posts like this in the past, I’d make use of the ESPN Home Run Tracker, because that was our only resource. And it was and remains a valuable resource, but of course, now we have Statcast, which is something even better. The Home Run Tracker would provide estimated batted-ball speeds. Statcast gives us better accuracy. There’s a strong correlation between the two, but when you have a direct reading, there’s no point in using anything else.
My criteria was simple. I didn’t go looking for the home run with the shortest distance. I didn’t go looking for anything having to do with launch angle. I was concerned only with exit velocity. I looked for the home run — of the out-of-the-park variety — with the lowest exit velocity. The whole point is to hit the ball as hard as you can. So I just looked for the worst contact, using Baseball Savant, and I was led to June 26. Here is Tulowitzki, in Chicago, spoiling a Chris Sale shutout:
The ball left the bat at 28.5 degrees above the horizontal. That’s great! The average home run this year left the bat at 28.1 degrees above the horizontal. But, the average home run also left the bat at 103.4 miles per hour. This ball left Tulowitzki’s bat at 87.1 miles per hour. Have you ever wondered if Doug Fister could stand on home plate and throw a fastball over the fence in Chicago’s left field? Wonder no more. In warm conditions, with at least the hint of a generous breeze, the answer is unequivocally yes.
It’s always fun to watch a looping video, but one of the drawbacks of most looping videos is that there isn’t any sound. It’s worth listening to Buck Martinez’s call of the home run:
Buck Martinez loves a good home run. Anyone who somewhat regularly watches Blue Jays games knows that Buck Martinez is never more excited than when he gets to watch a home run. Even here, he gets to do his usual “swing and a drive-“, but his voice is tentative. And when he says “that ball…is…a…home run” he says the word “home run” as if he’s asking a question. Martinez knew right away this was an atypical fly.
Yet, interestingly, there’s nothing to read into in terms of on-field body language. Everyone knew this was a short homer down the line, but I don’t think anyone understood how relatively poor the contact was. Sale didn’t stare off into the distance, or shake his head. He acted like it was any other homer. I might be over-interpreting things, because ultimately Sale had to get back to work, and the White Sox still led by three. But I wonder how apparent these things are from an on-the-field perspective. When you’re pitching, it’s easy to tell when a hitter hits a line drive or a fly ball. It seems like it’s less easy to tell when a hitter hits the ball 85 miles per hour, versus 95 or 105. No matter what, the ball’s gone from your forward-facing field of view in an instant. The contacts will sound awfully alike.
You can see, I think, why the ball came off as it did. Tulowitzki more or less hit the ball square, and the swing looks generally normal. But here’s the side view:
Sale threw a slow pitch, and Tulowitzki was almost out in front. You can see sort of a hiccup in his momentum, as Tulowitzki tried to keep his hands back long enough. That cost Tulowitzki some bat speed, which, in turn, cost him some exit velocity. So now we have an interesting case where the season’s worst home run was kind of the result of a terrific mid-swing adjustment. It’s all amazing! I told you. These players are unbelievable.
What happened this year with similar batted balls? Here are the batted balls hit around 87 miles per hour, at launch angles between 28 and 29 degrees:
I accidentally cut out the legend. I could very easily go to the trouble of fixing that, literally right now, but it’s not worth it, because even the legend-less picture speaks for itself. You see the one home run. Most of these are pretty routine outs. There are a few doubles. For the most part, these balls weren’t very threatening. Here’s Troy Tulowitzki hitting a virtually identical batted ball, except to the wrong part of the park:
With the same contact quality, Tulowitzki got a homer. And here’s Yasiel Puig hitting a virtually identical batted ball, also to left field:
That one looks really good off the bat, but the ball died in front of the track. Puig realized he almost got it. On another day, in another stadium, he would’ve gotten enough of it. Baseball’s a funny game. A home run is always a home run, but a home run isn’t always a home run, if you know what I mean. Troy Tulowitzki this year hit 24 homers, under very specific circumstances.
As for Sale’s side of things, whatever, a solo homer is only momentarily frustrating, and he and the White Sox won the game, which is what was most important. But this year, Sale finished first in the American League among pitchers in WAR, at 5.2. It worked out to be a three-way tie, between Sale, Justin Verlander, and Rick Porcello. Any little thing could’ve caused that tie to be broken. Any little thing.
Jeff made Lookout Landing a thing, but he does not still write there about the Mariners. He does write here, sometimes about the Mariners, but usually not.

“Any little thing could’ve caused that tie to be broken. Any little thing.”
THE DAGGER
Why, yes, I must admit that very question has kept me awake many a night: Could Doug Fister throw a fastball over the left field fence?
Aroldis Chapman could throw a changeup over the left field fence.
Aroldis Chapman could throw a changeup THROUGH the left field fence.
I’m sure Fister could. But can Jered Weaver?
You explain it, but this was actually a nice piece of hitting by Tulo. I’m not sure the same can be said for this homer by JJ Hardy. http://m.mlb.com/video/topic/6479266/v586672183/balbos-hardy-finds-the-right-field-seats-in-7th
Or this one by Tyler Naquin (93.7 mph off the bat according to HitTracker)
Wonder where Andre Ethier’s in the playoffs vs. the Cubs would fall here?
*edit, 98.3 mph, so not here, even though that type of exit velo + launch angle was 1-39 with a double lost in the sun previous to the Ethier “HR”
Hit Tracker lists the exit velocity for this homer as 95.5 mph, and indicates that this wasn’t Tulowitzki’s luckiest homer. That would be the one on August 16 against Anthony Swarzak, which was a Yankee Stadium special to right-field and had 8 feet less of distance after adjustment for wind and temperature.
I think you buried the lead a little too long. Without context, a title like Season’s worst homer is hopelessly subjective. But we are four paragraphs in before you finally get to the criteria and metrics used to determine what constitutes the worse homer. From there is quickly becomes and fun and informative article.
Is this your first time reading a Jeff Sullivan article?
Home runs are binary: they are or they are not. This one was.
Oh shut up.
Very nice and concise summary of the opening paragraph of this article, thanks.
I think that the statcast exit velocity estimate here is probably well off the real exit velocity, and what we are really looking at is an outlier in the error distribution for statcast.
That said, the worst home run is an interesting idea, and I’m not sure this particular home run would be it, even if the exit velocity is correct. My reasoning is that any home run hit off one of the best pitchers on the planet is at least a decent home run.
I think you should scale the exit velocities by the frequency of at bats that end in a home run by the opposing pitcher. Thus, the least impressive home run would be the one with the lowest exit velocity off of a pitcher that concedes lots of home runs.
Or instead of weighting by frequency of home runs allowed by the opposing pitcher, weight by average exit velocity allowed by opposing pitcher. Then the worst home run would be the softest hit home run off a pitcher that allows a lot of hard contact.
There is sound on the first looping video. That’s just Hawk Harrelson’s call.
Ok, so a ball hit at roughly the same velocity at roughly the same launch angle with roughly the same launch vector (direction? yaw? whatever) should land roughly the same place except for what variables? Wind? Air pressure? Temperature? Humidity? How do you account for what appears to be nearly 100 feet difference between the shortest ball hit that direction and Tulowitzki’s home run? Doesn’t this conclude that a Statcast error (especially when taking ESPN’s data into account) is the most likely answer. All that aside, love the FG articles like this.
The one thing we don’t get to measure is spin, and that can make an enormous difference on flight distance.
There’s something wonky about that spray chart – I went to baseball savant and two dots that were overlapping has distances 10 feet apart…And you see those 3 yellow dots on the LF line? The one on the left (ie that looks the farthest) went 300 feet, the middle one went 287 and the one on the right went 315 feet. The real difference between the longest and farthest is about 70 feet, which could reasonably explained by the factors you listed.
I’m not a huge believer in the accuracy of statcast data, but hittracker doesn’t seem to be all that great either. They seem to massively underestimate the impact of wind, and their “guess” of exit speed and launch angle depends on how the aforementioned [mis]estimate of wind.
Dear Fangraphs,
Your ads have become increasingly intrusive to the point where I can no longer use your site. It’s one thing when they autoplay with sound or cause the page to freeze forcing me to reload. I can deal with that although I’d prefer not to. But they are now forcing the page to focus on the ad, and when I scroll back up, the page quickly refocuses back to the ad. They are literally preventing me from reading the content. The only reason I’m even able to type this comment is because the ads are located directly above this text box. I know you need to make money, but this is unacceptable.
Agreed, really need to address this, I can’t get through an article, and reading Dan’s chat today was completely maddening. Video ads are fine, but forcing readers to watch them is ruining the site. Thanks!
My background is in golf, but I think some of the same physical rules apply. If you eliminate external influence (wind, altitude, humidity, barometric pressure, etc.) the distance a ball travels is based on launch speed, launch angle and the rate of backspin. Tulo’s double clutch reduced his bat speed which caused a lower launch speed. He matched the low launch speed with the right launch angle and spin rate to max out carry. It was a very good home run.
Be careful about applying intuitions from other sports without checking the implicit assumptions. Golf balls have dimples, which massively reduce the aerodynamic drag they experience. Baseballs have raised seams, which massively increase the aerodynamic drag they experience. In fact, work by Alan Nathan has shown that
…and:
However, it’s possible that at certain launch angles (ie low trajectories) and launch speeds (ie “just enough” with drag included) the Magnus force (“lift”) imparted by the spin may be the difference between a line-drive over the fence and one that bangs off it.
I could have sworn I saw Hardy and Pedroia hit identical chip shots just around the Pesky Pole within a week of each other. Which is 296′. Hardy, to his credit, looked embarrassed. Pedroia was like, fuck yeah!
Question: does velocity of the pitch have any affect on a batted ball?
Sale threw a 74mph pitch and Tulo hit it at 87. The examples shown were thrown at 90+. So does Tulo adding extra mph make a difference? In my head it would seem like a ball hit slower than the pitch would mean it will die in the OF where the opposite would give it carry. Pardon the ignorance if its a dumb question.
Alan Nathan has shown that pitch speed contributes about 15% – 20% of the total “exit speed” — that is, each 5mph of pitch velocity results in about 1 extra mph in launch speed off the bat (for pitches and home runs in the typical velocity ranges for MLB, ie things may get wonky with really slow pitches, etc). This is largely because pitch speed is going in the wrong direction, and the kinetic energy involved has to be “turned around” via compression and rebound of the ball, which is a very lossy process (the “lost” energy actually goes into raising the temperature of the ball, and a little helps provide us with that lovely “crack” sound off the bat). See his comment to this FG article.
Despite conventional wisdom, fastballs don’t make for longer dingers than offspeed piches.