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The Silent Improvement for Minnesota Has Been Massive

We’re halfway through the 2019 Major League Baseball season and the Minnesota Twins have been one of the best teams in baseball. En route to leading the AL Central division we’ve talked plenty about offensive performers and pitching prowess, but talk of the defensive talent has fallen by the wayside. For a team centered heavily around analytics, it’s been that side of the game that has seen a massive boost as well.
Image courtesy of © Kim Klement-USA TODAY Sports
Across all of baseball the Twins own the fourth best defensive fWAR and trail only the Kansas City Royals in the American League. Rocco Baldelli’s club shifts among the most often across the sport and they’re seventh in shift runs saved. Defensive runs saved puts the Twins fourth and has them behind only the Houston Astros in the American League. In terms of UZR, which stands for Ultimate Zone Rating and assigns a run value to defense, Minnesota checks in second behind only the Royals. At +19.7 UZR the team as a whole is playing what qualifies as Gold Glove Caliber defense.

Last season Minnesota posted the 15th best defensive totals in terms of fWAR across baseball. Given the meteoric rise in positioning it’s not a significant surprise to see the team playing much better baseball. Pairing the defensive improvements with a potent lineup and capable pitching is a trio of ideal changes. What’s worth wondering is where this is all coming from. In my estimation it’s three key areas.

You’ll often hear that baseball’s most important positions are up the middle. Catcher, middle infield, and shortstop are some of the most athletic players on the diamond and their impact can be felt far greater than those on the corners. A season ago Minnesota had a net negative in that line and it’s fairly obvious that the improvement there is where we should start.

A season ago Mitch Garver got his first taste as a regular in the big leagues. He has always been a bat-first catcher and during his big league debut he looked like a bat only backstop. Posting a -16 DRS while being a visible hinderance behind the dish, an offseason improvement was necessary. Working with Tanner Swanson and putting in significant time on his own, the improvement is of massive proportions.

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Statcast recently began tracking catcher framing metrics and Garver’s growth has been incredible. He’s generating over 5% more strikes this season and has developed an ability to grab low strikes. A 20% increase in strike rate at the bottom of the zone is reflective of a new receiving technique as well as improved strength. He’s always been strong on the edges, but it’s the bottom of the zone where good pitches went to die. Now through roughly half the sample of 2018, Garver has been worth 2 DRS this season. On top of being one of the best hitters at the position, he’s made a case to be included in the conversation as one of the best backstops in the game.

Moving into the infield we stop at shortstop with Jorge Polanco. Another guy who got to the big leagues through his bat, and profiles better at second base, has made a substantial turnaround. Since 2016 Polanco has been worth -8, -1, and -1 DRS on a yearly basis. Now having played in as many innings as a season ago, he’s been worth +7 DRS at SS in 2019.

Although his range is still somewhat limited he’s improved the total output moving his UZR from -3.9 last year to just -0.8 this season. Working with third base coach Tony Diaz, Polanco has adopted a new arm slot improving his throwing mechanics and increasing the level of comfort. Arm strength has always been a question for him at short, but as he’s worked in a new throwing motion the uptick in ability has been beyond noticeable. Cody recently dove more into Polanco specifically, and I urge you to give it a read here.

I don’t expect Jorge Polanco to win a Gold Glove any time soon, if ever for that matter, but his 7 DRS mark is the best across American Leaguers at the position and his bat certainly plays. If Brian Dozier can do it, I suppose anyone can.

Finally the middle of the outfield. Last season the Twins got less than 30 games from Byron Buxton. When healthy there’s arguably no better outfield defender across the sport. His speed allows him to track down fly balls no one else has a shot at, and the arm strength can nab a runner anywhere on the diamond. Taking him away as often as he was last year put extra strain on everyone else in the position group. Coincidentally, it may have elevated the ability of traditional right fielder Max Kepler

Kepler has always been a positive defender and put up some great numbers in right. Last season was his best defensively, posting 10 DRS split between center and right. Those numbers were accumulated across 1,200+ innings and in 2019 Kepler has already tallied 10 DRS in just 689 innings. Stepping in for Buxton occasionally he’s been great in center while still playing a very strong right.

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The Outs Above Average leaderboard has always touted Byron near the top, and this season is no different. Moving down a bit from him though, Kepler finds himself tied for seventh with five outs above average this season. He’s got an actual catch percentage of 90% and while the speed isn’t where Buxton’s is, Kepler uses some of the best route running in baseball to track down balls otherwise out of his grasp. Target Field’s deep alleys provide optimal opportunity for direct routes offering a significant benefit.

Given the relative health of Buxton this season, Minnesota employs two Gold Glove caliber outfielders and has two of the three highest DRS tallies among American League outfielders. With Buxton shelved and rotational players picking up the slack a season ago, it’s no surprise that this change is incredibly beneficial with the sport going fly ball heavy.

It’s a great thing that the Twins are pitching and hitting well this season. Any time those areas are of significant benefit they’ll get plenty of publicity. Defense isn’t sexy, but it’s every bit as important and integral to the strong start Minnesota has run out to. This isn’t an accident, and the Twins have put in a tremendous amount of work to get the most out of their players. Marrying analytical information and advancements with the buy-in and ability of the players on the field has resulted in one of the most complete teams Twins Territory may have ever seen.

Offense and pitching can slump, but defensive ability never should.

  • Mike Sixel, brvama, Oldgoat_MN and 6 others like this

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Very well said Ted.Thank you.

    • Ted Schwerzler likes this

Great article, Ted, thanks.


Glad to see Kepler performing like many of us expected.Expect Cron at first has also helped with their overall team D, and that has been a pleasant surprise...at least for me.

    • DocBauer and Ted Schwerzler like this

Really nice job highlighting the impact Buxton has across the outfield. Both Kepler and Rosario are capable of filling in in CF, but when they are in the corners with Buxton in CF, the Twins have one of the most athletic outfields in the MLB. This, more than anything else, is why it is so important for Buxton to keep himself healthy.


Garver and Polanco have been really good up the middle too. Twins pitchers look like they have confidence Garver and Castro will frame/block what they throw, and that every play will be made behind them in the field. It makes pitching just a little easier with that level of confidence in the guys around you.

    • Oldgoat_MN, DocBauer and Ted Schwerzler like this
Don Walcott
Jul 12 2019 08:19 AM

Great article. Improvements from Garver and Polanco, and having Buxton be Buxton has definitely helped our pitchers. It also seems like Schoop has been an improvement over last year's 2Bs as well.

    • DocBauer and Ted Schwerzler like this
Jul 12 2019 09:25 AM
I think the most palpable improvement has come from Polanco, but Garver's is more subtle and perhaps even more significant because it can reduce the number of pitches that need to be thrown.

The sleeper in this mix is Marwin Gonzales. He fills in brilliantly wherever and whenever he's called upon. He can also just give other players a chance to rest now and then. I love having him on the team.

I'm wondering how Cron and Schoop stack up on 'D' as well. I have to say this as well; Sano has not been reliable at the hot corner. I know I am risking a hail of poison arrows for saying such things, but I'm just observing. I hope he is working on his throwing as well.
Ted Schwerzler
Jul 12 2019 09:39 AM

I focused up the middle here, but it is important to note that Miguel Sano has done his part as well.


He's posted a 1 DRS which ranks tied 14th across 34 third basemen with at least 300 innings this year. It's his first time being positive over this many innings in his career.


Marwin Gonzalez has provided the Twins some great versatility, but over the course of his career the metrics suggest he's above average only in the OF. Sano holding down third for now is certainly a boost.

    • DocBauer and Don Walcott like this

The outfield defense has been nearly flawless. The infield defense not so much.

Again, great article Ted!

Always felt Garver was going to do what he is doing.

Big shout out to Cron at 1B and Marwin being so solid wherever he plays.

But let's not forget that Adrianza is having a great season and been very valuable.
Well written article.
I haven’t watched every play or every game but from what I have watched, it has seemed that Cron’s ability to catch short hops and low throws has made the other infielders look better and saved quite a few errors. Mauer also did this last year so it’s not an improvement from year to year thing but as a good quarter back needs to thank their offensive line, this infield has benefited from the glove at first base (with the obvious exception of that schoop deke that completely fooled Cron)

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