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Twins Video
First and foremost, I believe it’s crucial to get as much important information about this topic as possible out in the open. People shouldn’t just stick to shallow common-places when there’s so much in-depth information and analysis out there. That’s especially true when it comes to the effects of altitude in baseball.
In this brilliant 2020 article, Rox Pile’s Kevin Larson buts the myth that hitters at Coors Field only succeed because of the altitude. I’ll be quoting a few parts of that article here, but I think everyone would learn a lot if they read the whole thing. Basically, Larson advises people to do two things when analyzing players' performances at Coors:
- Take into account the unique circumstances Rockies hitters live through, having to adjust to different pitcher approaches in Denver and on the road;
- Ignore the traditional stats splits and focus on Park Adjusted stats, like wRC+, OPS+, and DRC+, which can paint the big picture more nicely;
Then, Larson goes on to provide several examples of both hitters who improved their wRC+ after leaving the Rockies, but also the contrary, players whose offensive productivity decreased after they joined the Rockies from other teams. Can you guess a former Twin, winner of an MVP in Minnesota, who falls in that last category?
The bottom line is, things aren’t as simple as “hitters won’t succeed after leaving Coors.” Trevor Story's traditional splits sure don’t look good, but that shouldn’t be a reason not to bring him to Minnesota. Not only would the Twins be giving up on a potentially above-average right-handed hitter, but they would be bailing on one of the best defenders in the game.
One of the best examples of former Rockies who succeeded elsewhere is second baseman DJ LeMahieu, who was signed by the Yankees in 2019 and has since won two Silver Slugger awards and received MVP votes in two seasons (finishing third in 2020). Take a look at some of his numbers.
DJ LeMahieu's splits during his time with the Rockies (2012-2018), per Fangraphs:
Home
.329/.386/.447 (.834)
.374 wOBA
96 wRC+
13.4% K%
8.6% BB%
Away
.267/.314/.367 (.681)
.298 wOBA
84 wRC+
17.0% K%
6.2% BB%
DJ LeMahieu as a Yankee, overall (since 2019), per Fangraphs:
.307/.370/.461 (.831)
.356 wOBA
126 wRC+
13.2% K%
8.8% BB%
The same way the belief that “Coors hitters do badly once they leave Colorado” shouldn’t be a rule, LeMahieu’s example isn’t a rule either. Former Rockies cornerstone third baseman Nolan Arenado, for instance, didn’t improve his numbers the same way LeMahieu did. However, his overall numbers in St. Louis didn’t get worse either. They were actually slightly better than his road numbers while with the Rockies.
Nolan Arenado's splits during his time with the Rockies (2013-2020), per Fangraphs:
Home
.322/.376/.609 (.985)
.409 wOBA
129 wRC+
13.7% K%
8.0% BB%
Away
.263/.322/.471 (.793)
.334 wOBA
108 wRC+
16.3% K%
7.8% BB%
Nolan Arenado as a Cardinal, overall (since 2021), per Fangraphs:
.255/.312/.494 (.807)
.336 wOBA
113 wRC+
14.7% K%
7.7% BB%
In conclusion, Trevor Story’s splits shouldn’t dissuade the Twins from trying to sign him. As someone who follows the Rockies very closely, I can attest to how talented and hard-working he is, and also how fun it is to watch him play every night.
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