Hit Batters as Collateral Damage of Rising Strikeout Rates

In the past, I’ve written about batters being hit by pitches–specifically, how the rate of hit batters is near all-time highs yet it hasn’t generated much, if any, outcry. Here’s a chart of hit batters per game, from 1901 (the start of the two-league era) to 2014:

HBP per game, 2001-2014

There were 0.68 hit batters per game in 2014, the eleventh-highest total over 115 years of two-league play. The top ten years, in order, have a 21st century slant: 2001, 2004, 2003, 2006, 1901, 2005, 2007, 2002, 2008, 1911.

Or, pretty much the same chart, here’s hit batters per 100 plate appearances:

HBP per 100 PA

There were 0.898 batters hit per 100 plate appearances in 2014, the tenth highest amount in the two-league era. The ten top years are, in order, 2001, 2003, 2004, 1901, 2006, 2005, 2002, 2007, 1911, and 2014.

Commenter jaysfan suggested that the modern emphasis on going deep into counts has changed the number of pitches thrown per game, so perhaps hit batters per pitch haven’t changed much. It turns out the pattern still holds. Here’s a graph of hit by pitch per 100 pitches, using actual pitch counts from FanGraphs for 2002 to present, and Tom Tango’s formula of Pitches = 3.3 x plate appearances + 1.5 x strikeouts + 2.2 x walks for the preceding years:

HBP per 100 pitches

With 0.234 hit batters per 100 pitches, 2014 ranks 16th all time, behind 1901-1905, 1908, 1910, 1911, and every year from 2001 to 2007. Again, a pronounced millennial bias. (Source for all the above graphs: Baseball Reference and FanGraphs)

It’s clear, then, that we’re seeing batters getting hit at the highest rate in a century. I tried to figure out why, and came up dry. Left-handed batters, who face a wider strike zone than righties, aren’t leaning across the plate and thereby getting hit at a proportionately higher rate. HBPs are not inversely correlated to power, with pitchers more willing to pitch inside now to hitters who less frequently pull inside pitches down the line and over the fence. College graduates are slightly more likely to get hit by pitches than other hitters, but not enough to explain the change. Batters setting up deeper in the batter’s box, as measured by catcher’s interference calls, isn’t correlated to HBPs.

However, commenter Peter Jensen noted, “I don’t think there is any question that pitchers throw more to the edges of the strike zone when they are ahead in the count. This could be confirmed with a pretty simple Pitch Fx study. And if they pitch to the edge more they are also going to miss inside more (and outside more) so this could partially or even wholly account for why there are more HBPs in pitcher counts.”

I did the PITCHf/x study Peter suggested. Using Baseball Savant data, I looked at hit by pitch by count, and as Peter found when he studied the data from 1997 and 2013, HBPs occur more when pitchers are ahead on the count. Here are the data from 2014:

2014 HBP

When the pitcher was ahead on the count, the batter was nearly three times as likely to get hit as when the batter was ahead. The most common counts for hit batters: 1-2, 0-2, and 2-2, and 0-1, all counts that encouraged pitchers to try to get batters to chase pitches on the border of the strike zone. Is this trend consistent? Baseball Savant’s data go back only to 2008, but using that season’s data, yes, the trend’s unchanged:

2008 HBP

Same thing. Batters are three times more likely to get hit when the pitcher’s ahead on the count, and the three most common HBP counts are two strikes with zero, one, or two balls, followed by 0-1.

So why the increase in hit batters? It appears that, as Peter implied, it’s because of the increase in strikeouts. Every three strike count requires a two strike count, obviously. In 2008, 22% of at bats went to 0-2 counts, 34% went to 1-2, and 29% went to 2-2. In 2014, those percentages had risen to 25%, 36%, and 30%, respectively, in line with the increase in strikeouts from 17.5% of plate appearances to 20.4%. The route to three strikes, which is being traveled more frequently, includes the four counts most likely to result in a hit batter. That’s why we’re seeing batters hit by pitches at rates not seen since before the first World War.

Here’s a graphical representation. In 2014, the Pirates led the majors in hit batters, handily, with 88. Here’s where Pirates pitchers threw on the hitters’ counts of 1-0. 2-0, 3-0, and 3-1:

Those greenish-yellow areas in the middle of the zone indicate that when the pitchers fell behind, they tended to locate their pitches in the strike zone. By contrast, check out the location for pitches thrown on 0-1, 0-2, 1-2, and 2-2 counts, when the pitcher could waste a pitch trying to get the batter to chase it:

That’s a much less concentrated blob, with a higher percentage of pitches outside the strike zone, where the batter can get hit.

As a final check, I ran a correlation between strikeouts per plate appearance and hit batters per plate appearance post-World War II. The correlation coefficient’s 0.82. That’s pretty high, suggesting a link between strikeouts and batters getting hit. Granted, correlation is not causation. But given that there’s an empirical link–to get to three strikes, you have to get to two, and batters with two strikes are at the highest risk of getting hit by a pitch–it’s enough to make me believe that while there are a lot of reasons more batters are getting hit by pitches, a major explanation is that hit batters are a consequence of rising strikeout rates.

CODA: If there were a day last season that I thought might’ve turned to tide on batters getting hit by pitch, it was Thursday, September 11. That day, there were 15 HBPs in 11 games. That doesn’t include the horrific fastball to the face that ended Giancarlo Stanton’s season; that pitch was a strike. A lot of stars got hit: Stanton, Mike Trout (twice), Yoenis CespedesCarlos Gomez, Jayson Werth. Tampa Bay’s Brad Boxberger hit Derek Jeter in the elbow. Had that pitch ended Jeter’s farewell tour, I really think it would’ve created an issue of rising HBP rates. Fortunately for Jeter and purveyors of Jeter memorabilia, it didn’t. But taking the 15 hit batters together, plus Stanton, and excluding two obvious retaliation jobs (Anthony DeSclafani hitting Gomez after Stanton got hit, Joe Smith hitting Tomas Telis after Trout got hit a second time), the fourteen hit batsmen occurred on six 0-1 counts (including Stanton and Jeter), three 1-2 counts, two 1-1 counts, and one count each of 0-0, 2-1, and 2-2. There was only one HBP with the batter ahead on the count, and ten occurred on the four counts identified here as the most dangerous for batters.


Peak Age Range for the Shortstop Position

Before we begin, we need to understand a few things.  First of all, in just the past ten years there have been more than 400 shortstops that have enjoyed the opportunity to play at the MLB level.  We will not be analyzing every single shortstop that has played the game over the past 100+ years.  This leads us to our next point, we will use a sampling of SS to reach our conclusions.  Some of those SS are, or will be, Hall of Famers, others were grinders.  We will take the sum of those samplings to reach our our conclusion.  Finally, we will base our findings on the following formula:

WAR per year rating above or below career WAR average.  Only years with a WAR above their career average are considered “peak years”.

By basing our findings on WAR we take into account the league average of any one given year.  Plus, we are able to negate the differential between offensive and defensive production.  Although that does raise a proposition for statistical analysis identifying peak offensive and defensive years…but I digress.  Let’s dive into our beloved SS peak-year analysis.

Derek Jeter (NYY)- Career Avg WAR:  3.9

Peak Age Years:  22 – 31

Caveat-  Jeter had one year (age 25 season) during his prime years where he performed below his career average WAR (3.7).  Also, Jeter had one year (age 34 season) during his sub-prime years in which he performed above his career average WAR (6.8).

Ozzie Smith (STL)- Career Avg WAR:  3.6

Peak Age Years:  25 – 34

Caveat-  The Wizard had two seasons (age 26 and 28 seasons) during his prime years where he underperformed his career average WAR (0.7 and 3.4 respectively).  He also outperformed his career average WAR twice (age 36 and 37 seasons) during his sub-prime years (both with a 5.1 WAR).

Alex Gonzalez (TOR)- Career Avg WAR:  0.7

Peak Age Years:  22 – 29

Caveat-  Alex Gonzalez had three seasons during his prime years (24, 26, 28 age seasons) that he underperformed his career average WAR (0.3, -0.3, 0.6).  During his subprime years he outperformed his career average (age 31 season) WAR once (1.5).

Edgar Renteria (STL)-  Career Avg WAR:  2.2

Peak Age Years:  25 – 30

Caveat- Renteria underperformed his career average WAR twice (1.7 and 1.7) during his peak years (age 27 and 28 seasons).  During his subprime years he outperformed his career average only once during his rookie year with a 3.5 WAR.

Rafael Furcal (ATL & LAD)- Career Avg WAR:  2.5

Peak Age Years:  24-31

Caveat-  Furcal underperformed his career average WAR twice (1.4, 2.1) during his peak years (age 28 and 29 seasons).  Furcal only outperformed his career average WAR once during his rookie year.

These are just a few examples of the types of shortstops we dissected through our research.  We used a combined 100 shortstops to find our conclusions.  What we found is a pronounced trend.  For shortstops who were able to play until at least their age 36 seasons, the more than 80% of those shortstops endured at minimum a slight drop in their WAR during their age 32 seasons and falling below their career-average WAR by their age 33 seasons.  For shortstops who played until they were at least 32 but not past 35, over 75% of them suffered a steep decline below their career-average WAR by age 30.

For such a demanding position which requires speed, athleticism, quick hands, quick feet, a good glove and at least a serviceable bat it was impressive to find that out of the 100 shortstops we evaluated, 9% were able to play until at least their age-40 seasons.  In order to compare the most like positions, our next analysis will evaluate second basemen.


Comparing the Captain: Jeter vs. Trammell

On Wednesday, February 12th, Derek Jeter announced that he will be retiring at the end of the 2014 season. This has taken over baseball headlines, and rightfully so. Jeter, a lifetime New York Yankee, is their captain and has been their starting shortstop since 1996. He is a 13 time All Star, 5 time Silver Slugger award winner, 5 time Gold Glove winner, and a 5 time World Series champion. On top of all that, Jeter has long been considered one of the true class acts of the game. In 2020 when he is eligible for the Hall of Fame, he will almost certainly be elected to it with close to a unanimous vote. Derek Jeter’s playing career was nothing short of spectacular.

On the other side of the comparison we have Alan Trammell, who played his entire career with the Detroit Tigers. Manning shortstop from 1977 to 1996, Trammell is a 6 time All Star, a 4 time Gold Glove winner, a 3 time Silver Slugger winner, and a World Series champion. He is not in the Hall of Fame and is barely holding onto a spot on the ballot. His career was also spectacular.

When you compare the accolades that each earned, Jeter easily beats out Trammell. Funny thing about all of those awards mentioned above is that they are either voted on by a committee or earned with 24 other guys on the roster. The only way to truly compare their careers is to delve into their individual advanced statistics, so let’s do exactly that!

Offense
Let’s start with with the offensive side of the stats. Through 11,986 plate appearances, Derek Jeter has a career OPS of .828, a wOBA of .365, and an average wRC+ of 121. Jeter is also a member of the 3,000 hit club. In 9,375 career plate appearances, Tram has an OPS of .767, a wOBA of .343, and an average wRC+ of 111. Alan Trammell does not have 3,000 hits, coming up short with 2,365.

Shortstops are generally considered to have the least amount of offensive production among position players. Based off of the numbers from Scoresheetwiz, the average shortstop OPS is around .749. According to FanGraphs, in 2011 the average wOBA for shortstops was .303. The average wRC+ for shortstops during Trammell’s career fluctuated between 68 and 93, and 80 and 97 during Jeter’s career according to SABR. Among shortstops, all of Jeter and Trammell’s numbers are considered well above average, but the Captain clearly has the edge.

For Hall of Fame shortstops, both of their numbers stack up quite well. Among Hall of Famers, OPS fluctuates between .653 and .859, wOBA between .296 and .409, and wRC+ between 83 and 147. Jeter will be near the top in all three of those hitting categories when he enters the Hall, while Trammell would be more towards the lower middle. Needless to say, both have earned their spots among the all time greats based off of their performances at the plate.

Defense
Comparing Derek Jeter’s defense to Alan Trammell’s is where this article gets tricky. Defensive metrics have come a long way since Trammell’s day. Today, sabermatricians use advanced metrics such as Ultimate Zone Rating (UZR), and Probabilistic Model of Range (PMR). I’ll mention Jeter’s UZR, but I won’t use it to compare him to Trammell. The statistic I will use, which is widely considered to be the most accurate way of measuring defensive ability from 1954-2001, is Total Zone (TZ).

Alan Trammell’s TZ for his entire career at shortstop was 80, while Derek Jeter’s is -129. Total Zone isn’t as accurate as a defensive metric such as UZR, but when you have a 209 run difference, I think it’s fairly easy to distinguish the better fielder. Trammell only had a negative TZ in 5 seasons out of his 20. The only years that Jeter posted a positive TZ rating were 98′, 04′, and 09′.

The metric that I used to compare both of these players to other Hall of Famers was Defensive WAR. The lowest career Def in the Hall of Fame is 27.3, held by Robin Yount. The high Def is 375.3, which is from Ozzie Smith. Alan Trammell would actually be tied with Honus Wagner for 13th on the list of Def with 184.4, while Derek Jeter would be in last place with a Def of -25.7.

I am well aware of some of the seemingly spectacular plays that Derek Jeter made in the field. Unlike Trammell, I grew up watching Jeter. Yes, Jeter made some eye popping plays throughout his career, but people fail to acknowledge that there were numerous plays that he didn’t make. Judging by Jeter’s UZR, he cost the Yankees -67.8 runs throughout the more recent bulk of his career. He may have made some big plays along the way that will be remembered, but he cost the Yankees way more runs that theoretically could have made it so the big plays weren’t even necessary.

Bottom line, Alan Trammell was a much better defensive shortstop than Derek Jeter despite having fewer Gold Glove awards. Judging by Jeter’s advanced metrics, he really wasn’t that good of a fielder at all.

Total Value
Oh no, this is where I bring out that WAR mumbo jumbo. If you’ve read anything from me before, you probably know that I am an advocate of using Wins Above Replacement to analyze a player’s total value. While it shouldn’t be the end all, be all statistic, it is great to use when comparing two players’ total contributions on the field.

Derek Jeter has a career WAR of 73.7, and Alan Trammell has a career WAR of 63.7. Despite Jeter’s poor defense throughout his career, he hit well enough to still prove more valuable than Trammell. I think that’s a testament to how truly great of a hitter Jeter was. When compared to other Hall of Famers, both WARs fit in nicely. Honus Wagner holds a large lead for WAR at 138.1, while John Ward is in last with a 39.8 WAR. When Jeter enters the Hall, he will be 4th on the list, and if Tram was in the Hall, he would be 11th.

Conclusion
Overall, Derek Jeter had a better career than Alan Trammell, but both are much deserving of spots in the Hall of Fame. To almost any baseball fan, Jeter is considered a first ballot Hall of Famer. Why then, is Allan Trammell being completely overlooked? The voters in the BBWAA need to sit down and reexamine Trammell’s career. Trammell didn’t have the New York media following that Jeter has gotten to experience throughout his legendary career, but media coverage shouldn’t be what decides who goes into the Hall and who doesn’t. Allan Trammell deserves justice, and when you compare his numbers to the greatest players to ever play his position, you will see that he ranks right up there with them.