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kottke.org posts about baseball

Of two minds on the pitcher’s mound

If I ever write a book, it might have something to do with the two minds that govern creative expertise: the instinctual unconscious mind (the realm of relaxed concentration) and the thinking mind (the realm of deliberate practice). The tension between these two minds is both the key to and fatal flaw of human creativity. From the world of sports1, here’s Rockies pitcher and college physics major Jeff Francis describing the interplay of the minds on the mound:

Even though I do understand the forces and everything, there’s a separation when I’m pitching. If I throw a good pitch, I know what I did to do it, but there has to be a separation between knowing what I did and knowing why what I did helped the ball do what it did, if that makes any sense at all. If I thought about it on the mound, I’d be really mechanical and trying to be too perfect instead of doing what comes naturally.

But you don’t need to be a physics major to wrestle with the consequences of the conflict between the two minds. After an injury and subsequent surgery, Francis’ instinctual mind works to protect his body from further injury:

Francis repeatedly pulled the ball back in preparation to throw. But as he flashed his arm forward, his hand would, mind unaware, bring the ball back toward his ear rather than at full extension. It was his body essentially shortening the axis of his arm to decrease the force on his shoulder, protecting him from pain. And Francis could not stop it.

After his 10th pitch and first muffled groan of pain, he stopped.

“It’s hurting you?” Murayama said.

“Yeah,” Francis said.

“I can tell. You’re getting out ahead of your arm. Slow down, stay back a little more.”

“Does it look like I’m scared to throw a little?”

“Are you scared?”

“Not consciously.”

To fully recover and regain his former effective pitching motion, Francis will utilize his thinking mind to retrain his unconscious mind through deliberate practice to ignore the injury potential. (thx, adriana)

[1] Most of the examples I’ve cited over the years deal with sports, mostly because professional athletes are among the most trained, scrutinized, studied, and optimized creative workers in the world. For a lot of other professions and endeavors, the data and scrutiny just isn’t as evident.


Salary vs performance in baseball

Ben Fry just updated his interactive salary vs performance graph that compares the payrolls of major league teams to their records. Look at those overachieving Rays and Marlins! And those underachieving Indians, Mets, and Cubs!


Jack Kerouac’s fantasy baseball league

Unbeknownst to his close friends, Jack Kerouac invented a fantasy baseball game and played it for most of his life.

[Kerouac’s game charted] the exploits of made-up players like Wino Love, Warby Pepper, Heinie Twiett, Phegus Cody and Zagg Parker, who toiled on imaginary teams named either for cars (the Pittsburgh Plymouths and New York Chevvies, for example) or for colors (the Boston Grays and Cincinnati Blacks).

He collected their stats, analyzed their performances and, as a teenager, when he played most ardently, wrote about them in homemade newsletters and broadsides. He even covered financial news and imaginary contract disputes. During those same teenage years, he also ran a fantasy horse-racing circuit, complete with illustrated tout sheets and racing reports. He created imaginary owners, imaginary jockeys, imaginary track conditions.

Don’t miss the slideshow of some of Kerouac’s notebooks and publications related to his imaginary sports.


Baseball Cards: Not for Kids Anymore

The Baseball Card Movie is a nice nine-minute film that introduces the viewer to a world where adults pay up to $500 for a pack of cards (aka cardboard crack) and act very superstitiously about opening them.

The whole sports memorabilia thing is an odd world. There’s a story about major league pitcher Barry Zito buying his own autographed cards on eBay:

He once made it a practice to buy his own autographed baseball cards on eBay; when asked why he bought them at auction for high prices rather than acquiring unsigned cards and signing them himself, Zito replied, “Because they’re authenticated.”

Possibly apocryphal but Zito would likely have a difficult time selling self-signed cards because they’re not authenticated.


The economics of the new Yankee Stadium

Ticket prices at the new Yankee Stadium are so high that if a New Yorker wants to watch a Mariners/Yankees game from the best seats, it would be a lot cheaper to fly to Seattle, stay in a nice hotel, eat fancy dinners, and see two games.

Option 1: Two tickets to Tuesday night, June 30, Mariners at Yanks, cost for just the tickets, $5,000.

Option 2: Two round-trip airline tickets to Seattle, Friday, Aug. 14, return Sunday the 16th, rental car for three days, two-night double occupancy stay in four-star hotel, two top tickets to both the Saturday and Sunday Yanks-Mariners games, two best-restaurant-in-town dinners for two. Total cost, $2,800. Plus-frequent flyer miles.

(thx, david)


Dixie Upright and his friends

The pace of baseball is such that one wonders about all the baseball players whose last names are adjectives.

Woody Rich, Pop Rising. Harry Sage. Several Savages. Mac Scarce. Bill Sharp. Bill, Chris, Dave, and Rick Short. Many Smalls. One Smart guy (JD). Three Starks. Adam Stern. Of course, there’s Doug Strange (and Alan and Pat, too). Jamal and Joe Strong. Even a guy named Sturdy, literally: Guy Sturdy. DIck Such. Bill Swift, x2.

Update: See also musicians whose names are sentences. (thx, colter)


The luckiest fan in America

A Philadelphia sports fan with a knack for getting into good seats at the ballgame for free ended up partying with the Phillies in their clubhouse after winning the World Series.

Lionel goes 5’8”, 240, and he’s got the same shirt and lei as the players, so he looks like a player, which is maybe why he’s suddenly in the middle of every hug. And that’s about when Chase Utley says to Jimmy Rollins: “Let’s go celebrate!” And Lionel says exactly what you’d think he’d say, which is, “I’m with you guys!”

(via memeticians)


An unlikely baseball record

The number of pinstripes on a Yankees jersey varies with the size of the player…the bigger the man, the more pinstripes on the jersey. With the Yankees’ recent signing of CC Sabathia, a rather large gentleman, ESPN’s Paul Lukas wonders: will Sabathia have the most Yankee pinstripes in history?

You’re embarking on a new field of study here, so we have to make up our own rules and standards as we go,” he said. “For example, depending on how a jersey is tailored, the number of pinstripes at the top and at the bottom aren’t necessarily the same. Also, the space between the pinstripes has changed a bit over the years, and the pinstripes themselves are thinner today than in the old days.

(thx, djacobs)


The Billy Ripken

It’s the 20th anniversary of the Billy Ripken “fuck face” card. Ripken explains for the first time how the card came to be.

Now I had to write something on the bat. At Memorial Stadium, the bat room was not too close to the clubhouse, so I wanted to write something that I could find immediately if I looked up and it was 4:44 and I had to get out there on the field a minute later and not be late. There were five big grocery carts full of bats in there and if I wrote my number 3, it could be too confusing. So I wrote ‘F—k’ Face on it.

At the time, it was assumed by many that Ripken had intentionally sabotaged his card with the obscenity. I still have one of these somewhere… (via unlikely words)


Mmm, Coco Crisp

I’m only posting this so I can say: the Sox got enough of that Coco Crisp.


Tweet, tweet, free tacos

Fun evening activity: type whatever crazy shit is happening on TV into Twitter Search and watch the wittisicms and not-so-witticisms roll by. Example: in game one of the World Series tonight, someone stole a base and every single person in the United States won a free taco from Taco Bell. Instant tweetalanche.


Fenway as scale model

A fake tilt-shift photo of Fenway Park in Boston makes the ballpark look like a scale model. I seemingly will never tire of this gimmick. (via let’s go mets)


Manny being Manny

Conventional wisdom and prevailing opinion among hardcore Boston Red Sox fans is that LA Dodgers left fielder Manny Ramirez finally sulked his way out of a Boston Red Sox uniform by basically phoning it in and causing trouble for his team for a couple of months earlier in the season, which phoning and trouble resulted in a trade of Ramirez to LA for very little in return. Two rebuttals have surfaced recently that seem more plausible to me. The first is Facts About Manny Ramirez by Joe Sheehan. Sheehan uses some of those pesky facts to illustrate that on the field, Manny played as well or better during the supposed phoning-it-in period than he has in the past.

When he played, Ramirez killed the league. He hit .347/.473/.587 in July. His OBP led the team, and his SLG led all Red Sox with at least 25 AB. The Sox, somewhat famously, went 11-13 in July. Lots of people want you to believe that was because Manny Ramirez is a bad guy. I’ll throw out the wildly implausible idea that the Sox went 11-13 because Ortiz played in six games and because veterans Mike Lowell and Jason Varitek has sub-600 OPSs for the month.

Four days before he was traded, Manny Ramirez just about single-handedly saved the Red Sox from getting swept by the Yankees, with doubles in the first and third innings that helped the Sox get out to a 5-0 lead in a game they had to win to stay ahead of the Yankees in the wild-card race.

In Manny Being Manipulated, Bill Simmons attempts to answer the question, Ok, so why did Manny suddenly want to be traded and, more importantly, why did the Red Sox actually oblige? Simmons’ answer: Scott Boras, Ramirez’s agent and “one of the worst human beings in America who hasn’t actually committed a crime”. According to Simmons, it all boiled down to mismatched incentives and following the money.

Manny’s contract was set to expire after the 2008 season, with Boston holding $20 million options for 2009 and 2010. Boras couldn’t earn a commission on the option years because those fees belonged to Manny’s previous agents. He could only get paid when he negotiated Manny’s next contract. And Scott Boras always gets paid.

Boras could only get paid for representing Ramirez if Manny signed a new contract. Which he will next year because as part of the trade, the Dodgers agreed to waive his 2009 option and allow him to become a free agent. And the Red Sox went along because they decided they’d rather have a good relationship with Scott Boras going forward instead of a weird relationship with Ramirez. As for Manny, he gets paid either way, rarely appreciated the weird pressure/adulation put on him and every other Red Sox player by Boston fans, and, I get the feeling, likes swinging a bat, no matter what team he plays for.


1908, Cubs vs. NY Giants

The crazy finish to the 1908 baseball season, which was decided by an obscure rule, Christy Mathewson’s dead arm, Mordecai “Three Finger” Brown’s pitching, and Fred Merkle’s decision not to run all the way to second base. Things got ugly.

“From the stands there was a steady roar of abuse,” Brown said later. “I never heard anybody or any set of men called as many foul names as the Giant fans called us that day.” Foul names might have been the least of their worries. The New York Journal reported that Cubs catcher Johnny Kling, chasing a pop foul, had to dodge “two beer bottles, a drinking glass and a derby hat.”

The box score of the first game and a bunch of other juicy details are available in the original 1908 NY Times article.

Censurable stupidity on the part of player Merkle in yesterday’s game at the Polo Grounds between the Giants and Chicago placed the New York team’s chances of winning the pennant in jeopardy. His unusual conduct in the final inning of great game perhaps deprived New York of a victory that would have been unquestionable had he not comitted a breach in baseball play that resulted in Umpire O’Day declaring the game a tie.

It’s also interesting to look at the statistics for that season. Merkle is listed as the league’s youngest player, and Honus Wagner won nearly every single batting category, the Brooklyn Superbas (no, really!) topped the league with only 28 homers (for the entire team), and Mathewson won a whopping 37 games. Here’s that NY Times article again:

Up to the climatic ninth it was the toss of a coin who would win. For here is our best-beloved Mathewson pitching as only champions pitch, striking out the power and the glory of the Cubs, numbering among his slain Schulte in the first, Pfeister in the third, Steinfeldt in the fourth, Pfeister in the fifth, Haydon in the eighth, and Evers and Schulte in the ninth — these last in one-two order. Proper pitching, and for this and other things we embrace him.

With such headings as “The Fatal Third Inning”, the 1908 Times story about the second game is worth a look as well.


Love is a ballfield

A poem in which each instance of the word “love” is replaced by “Boston Red Sox Hall of Fame Catcher Carlton Fisk”.

“And know you not,” says Boston Red Sox Hall of Fame Catcher Carlton Fisk, “who bore the blame?”
“My dear, then I will serve.”

(via hodgman)


Why are MLB bats breaking?

Popular Woodworking magazine weighs in: why are major league bats breaking at an increasing rate?

So is the broken bat mystery merely a question of maple vs. ash? As a woodworker, I doubt it. I will concede that the safety question is best answered with the choice of ash over maple because I’d bet the ash will be far less likely to break in two and send a hurtling projectile. More likely, ash will just crack or splinter.

(thx, brent)

Update: Cal Ripken and Harold Reynolds agree with the woodworkers: bats break because they’re lighter with thinner handles. (thx, gerard)


RBI Baseball and Tecmo Super Bowl active players

For the past few years, Mark Bottrell has been tracking how many players who have appeared in RBI Baseball (from 1988) and Tecmo Super Bowl (from 1991) are still active in MLB and the NFL. Sad news this year…only one player is still active.


Pitcher Tim Lincecum

Tim Lincecum is a 5’ 10” 172-pound Major League pitcher with a 98-mph fastball. Such velocity out of such a small frame is attributed to his unique (but mechanically sound) pitching technique.

One key to Lincecum’s delivery is to keep his left side, especially his left shoulder, aimed toward his target for as long as possible. “Don’t open up too soon because then you lose leverage,” Tim says. “If you twist a rubber band against itself, the recoil is bigger. The more torque I can come up with, the better.”

Where Lincecum truly separates himself from most pitchers is the length of his stride. It is ridiculously long as it relates to his height. And just as his left foot, the landing foot, appears to be nearing the ground at the end of his stride, he lifts it as if stepping over a banana peel — extending his stride even more. The normal stride length for a pitcher is 77% to 87% of his height. Lincecum’s stride is 129%, or roughly 7 1/2 feet.

As a casual fan, it’s difficult to see what’s so different and violent about Lincecum’s pitching technique.


Moneyball works

Every year or so, the same question is asked: how is the Moneyball strategy working out for the Oakland A’s. This year’s answer is: pretty damn good.

Additions like [Frank] Thomas, motivated by this incremental approach, help explain why the A’s have won so many games in recent years even though they’ve consistently traded away or declined to re-sign their top players (Jason Giambi, Miguel Tejada, Tim Hudson, etc.), who demand top dollar—and largely on the basis of past performance. In short, Beane has bought low and sold high repeatedly and systematically, and as a result the A’s have won more games this decade than every team in the league except the Yankees (whose team payroll is routinely two-to-four times larger than Oakland’s).

Check out the current positions of the A’s and Yankees on the salary vs. performance graph.


The Griffey card

The 1989 Upper Deck Ken Griffey Jr. baseball card is both coveted and widely available, which is odd for baseball cards (and other collectable items).

The Griffey card was the perfect piece of memorabilia at the perfect time. The number the card was given only furthered the prospect of his cardboard IPO. Junior was chosen to be card No. 1 by an Upper Deck employee named Tom Geideman, a college student known for his keen eye for talent. Geideman earned his rep by consistently clueing in the founders of The Upper Deck, the card shop where the business was hatched, on which players would be future stars. Geideman took the task of naming the player for the first card very seriously. Using an issue of Baseball America as his guide, Geideman knew that card No. 1 would belong to Gregg Jefferies, Sandy Alomar Jr., Gary Sheffield, or a long-shot candidate, the phenom they called “The Kid.” It’s probably the most thinking Geideman ever did compiling a checklist, save for the 1992 Upper Deck set when he assigned numbers that ended in 69 to players with porn-star-sounding names. (Dick Schofield at No. 269, Heathcliff Slocumb at No. 569, and Dickie Thon at No. 769.)

I still remember when I got my one and only “Griffey card” (as everyone called it then). My friend Derek and I ventured out in a downpour in response to a call from Al, the owner of our small town’s only card shop. Al ran his shop out of his mother’s garage; he was maybe 30 years old at the time, still lived with his mom, and was one of the nicest, most generous people I’ve ever met. He had half a box of Upper Deck packs that he’d procured from who knows where. Derek and I bought the lot at a slight markup over retail and opened them right there in the cold garage. We both got a Griffey that night; I’ve still got mine sheathed in a hard plastic case.

When I think back on how precious those cards were to me then and consider my current purchasing power relative to my 16-year-old self, I feel a giddy power in the realization that if I wanted to, I could go out right now and buy 10 or 20 Griffey cards. Gah, where’s that eBay login info?

Update: Meet the man who owns over 400 Upper Deck Ken Griffey Jr. rookie cards.


Best pitch ever

Video of the best baseball pitch ever. (via hello typepad)


The under-construction facade of the new Apple

The under-construction facade of the new Apple Store in Boston looks like Fenway Park’s Green Monster. I bet they did this just to piss off Gruber.


Ben Fry has updated his salary vs.

Ben Fry has updated his salary vs. performance chart for the 2008 MLB season that compares team payrolls with winning percentage. The entire payroll of the Florida Marlins appears to be less than what Jason Giambi and A-Rod *each* made last year.


This season, baseball managers are being a

This season, baseball managers are being a bit more experimental in how they construct their batting and pitching lineups. For instance, the Yankees, Giants, and Dodgers started relief pitchers in games that they suspected might be shortened by rain in order to save the scheduled starter for the next game. The Braves shifted their pitcher to the outfield for one at-bat then brought him back to the mound for the next one.

The article is also notable for this quote from an Angels spokesperson, who said that Angels star Vladimir Guerrero is “somebody who’s not affected by things”. !!


The break on the knuckleball

MLB tracks every pitch thrown in a game using a system called PITCHf/x. You may have seen this system in action during televised games; it’s used to show the viewer where the pitch was located when it crossed the plate relative to the strike zone. On his baseball statistics blog, Josh Kalk takes these stats and lets you slice and dice them however you want.

One of the most interesting statistics measured is the break of a pitch…how much up-and-down and side-to-side motion a pitched ball goes through after leaving the pitcher’s hand. The break demonstrates why the knuckleball is such a difficult pitch to hit, particularly when used in conjunction with other pitch types. Here’s a graph showing the break on knuckleballer Tim Wakefield’s pitches so far this season:

Break Wakefield

The ball is all over the place…the hitter doesn’t know where it’s going. Compare that to the break on the three different pitches thrown by fellow Red Sox player Daisuke Matsuzaka:

Break Matsuzaka

Now take a look at the graphs on the player cards for Wakefield and Matsuzaka. Wakefield’s pitches also have a wider range of velocities…Matsuzaka’s pitches range in speed from about 77 to 95 mph while Wakefield’s pitches range from 65 to 95 mph. And the graphs don’t even account for the multiple breaks that a knuckleball can make during a single pitch. The uncertainties of speed and break of a knuckleballer’s pitches combine to create a lot of trouble for batters…they neither know where the ball’s going nor when it’s going to arrive. (thx, fred)

P.S. So why is Wakefield not as effective as many other major league pitchers (his career stats aren’t that impressive), none of whom throw the knuckleball? One guess is that sometimes the knuckleball doesn’t break and essentially becomes a 60-65 mph meatball right down the middle of the plate, a pitch any decent hitter can put anywhere he wants.

Update: I thought that Wakefield’s upper velocity range was a little high. I’m getting a lot of feedback saying that Wakefield’s fastball is in the low 80s, not the mid-90s. Looks like we’ve got some screwy data here.

Also, another reason why knuckleballers are of limited effectiveness: it’s difficult to throw a strike on command, which can be a problem when you’re behind in the count and you have to throw your 80 mph fastball for a strike. (thx, jonathan & steve)


An ode to the knuckleball, a truly

An ode to the knuckleball, a truly screwy pitch.

Few pitchers are able to throw the knuckler, giving those who can a cult-like status. It generally requires very large fingers. As Hall of Famer Willie Stargell explained it, “Throwing a knuckleball for a strike is like throwing a butterfly with hiccups across the street into your neighbor’s mailbox”.

Yankees third baseman Wade Boggs once used the knuckleball to retire the side in an inning during a rare appearance on the mound. When he’s got his stuff working, I love watching knuckleballer Tim Wakefield pitch.


Six reasons why baseball is the best

Six reasons why baseball is the best of all games, from a 1961 conversation.

First: the rules of the game are in equilibrium: that is, from the start, the diamond was made just the right size, the pitcher’s mound just the right distance from home plate, etc., and this makes possible the marvelous plays, such as the double play. The physical layout of the game is perfectly adjusted to the human skills it is meant to display and to call into graceful exercise. Whereas, basketball, e.g., is constantly (or was then) adjusting its rules to get them in balance.

Second: the game does not give unusual preference or advantage to special physical types, e.g., to tall men as in basketball. All sorts of abilities can find a place somewhere, the tall and the short etc. can enjoy the game together in different positions.

The comments are entertaining as well; the level of erudition is higher than most blog comment threads, but the insults and arguments are still there.


Business guru Lenny Dykstra

Just got around to reading Ben McGrath’s New Yorker profile of Lenny Dykstra, the former baseball All-Star who has, somewhat improbably, become rich post-baseball as a business owner and day trader.

Dykstra last played in the majors in 1996, at age thirty-three. Improbably, he has since become a successful day trader, and he let me know that he owns both a Maybach (“the best car”) and a Gulfstream (“the best jet”).

But maybe not so improbably…Dykstra has a canny sense for business:

Dykstra chose car washes, he says, because of the automobile-centric culture in California, and because “it was a business that couldn’t be replaced by a computer chip.” He brought his own frustrated consumer experiences to bear in creating the business model, and eliminated many of the usual array of motor-oil choices-startup, high-mileage, various blends-from his inventory. “You get the shit out of the ground,” he said, referring to standard Castrol GTX, “or the shit made in the laboratory that’s the perfect lubricant” (Syntec). “Meaning, it’s either A or B. It’s not about the oil. It’s about the people. They got confused.” He stocked the places with baseball memorabilia and flat-screen TVs, and served free coffee (“the good kind”), so that customers would associate the experience with luxury rather than with cumbersome chores.

One of the characteristics of Dykstra the businessman is his constant use of baseball metaphors and comparisons. Here’s a listing from the article:

The Players Club, in contrast to the television installation, would be “major league,” he explained, and to that end he was assembling an editorial staff of “.300 hitters,” and lining up sponsors to match.

Dykstra’s business card gives an address for the “headquarters” of The Players Club, at 245 Park Avenue, which he describes as “big league-like, top five addresses in the world.”

Next, he took a call from a designer he wanted to hire for the magazine. “You worked for Esquire and In Style,” he said, delivering a pep talk. “That’s called the big leagues. It’s like in baseball. You can’t go above the major leagues. There’s not another league. We’re teeing it up high, dude.”

He quoted from Confucius, Dickens, and Billy Joel, and balanced straight stock picks (“Intel is the N.Y. Yankees of the chipmakers”) with musings about fatherhood and current events, like the war in Iraq, seldom passing up the opportunity to draw extended sports analogies.

“My approach in investing is much the same as my approach to hitting,” he wrote. “I would rather take a walk or single and reach first than shoot for a home run and strike out swinging.”

Dykstra hopes the magazine will help players recognize the importance of marriage and family. He drew three stick figures and named them Tom, Dick, and Harry. Above Tom, he drew a man and a woman-two parents. Dick got a father but no mother, and Harry the reverse. “Do you know the studies and what they’ve proven?” he asked. “You should look that up, dude. Like, bad things. It’s like the one-one count.” The one-one count is another of Dykstra’s baseball metaphors for life, meant to illustrate that some moments, and the choices they bring, are more fateful than others (i.e., the next pitch makes all the difference), or, in this case, that circumstances set in motion during the early stages of development are difficult to overcome later on. If a batter falls behind, one ball and two strikes, he’s in a hole from which, the statistics augur, he will not recover, even if he is Barry Bonds; and if he gets ahead, to two balls and one strike, he wrests control from the pitcher and takes charge of his own destiny. Having two parents puts you in control of life’s count, and enables you to become a .300 hitter.

Here’s an archive of Dykstra’s articles on trading for The Street.

Update: Not so fast, Nails. Seems as though Mr. Dykstra’s business sense was not that good; he recently filed for chapter 11 bankruptcy.

The 46-year-old has no more than $50,000 of assets and between $10 million and $50 million of liabilities, according to a petition filed Tuesday with the U.S. Bankruptcy Court in the Central District of California.

Dykstra’s filing comes in the wake of more than 20 lawsuits he faces tied to his activities as a financial entrepreneur, including The Players Club, a glossy magazine for athletes he had helped launch in 2008.

Sounds like he was a little over-leveraged. (thx, todd)


Bruce Bukiet is back with his annual

Bruce Bukiet is back with his annual mathematically modeled prediction of how the upcoming baseball season is going to play out. His results should be taken with a grain of salt; last year he picked the Yankees to win 110 games (they only won 94).

Speaking of the Yankees, Derek Jeter always seems to get a lot of credit for those four World Series victories in five years but a quick look at the OBP stats for those years shows that Bernie Williams was the engine driving that offense. Jeter’s a little overrated maybe?


According to a simple statistical analysis using

According to a simple statistical analysis using computer simulations, a hitting streak as long as Joe DiMaggio’s 1941 56-game streak is not the freakish occurrence that most people think it is.

More than half the time, or in 5,295 baseball universes, the record for the longest hitting streak exceeded 53 games. Two-thirds of the time, the best streak was between 50 and 64 games.

In other words, streaks of 56 games or longer are not at all an unusual occurrence. Forty-two percent of the simulated baseball histories have a streak of DiMaggio’s length or longer. You shouldn’t be too surprised that someone, at some time in the history of the game, accomplished what DiMaggio did.

I think there are probably some cumulative effects that are being ignored here though, like increasing media pressure/distraction, opponents trying particularly hard for an out as the streak continues, pitchers more likely to pitch around them, or even the streaking player getting super-confident. The first game in a streak and the 50th game in a streak are, as they say, completely different ball games.