The Minnesota Twins were one of the best stories of the 2017 MLB season: Coming off a 59-win campaign in 2016, they won 85 games and made the playoffs seemingly out of nowhere. Minnesota even spotted itself an early three-run lead against the Yankees in the American League wild-card game (before promptly giving it away in the bottom of the first and ultimately losing). With one of baseball’s youngest lineups, this seemed like a team on the rise, and its best all-around player — 23-year-old center fielder Byron Buxton — had a lot to do with that, putting together a breakout season of his own.
By the same token, when Buxton faltered in 2018, so did the Twins. In an injury-plagued lost season, Buxton managed just 94 plate appearances and graded as below replacement level, according to whichever metric you choose to consult. Minnesota, in turn, dipped from 85 wins to 78 and wasn’t really in the playoff picture after the All-Star break. Buxton wasn’t the only Twin to suffer a miserable 2018 decline,1 but it is fair to say his absence played as big a role in Minnesota’s downfall as anything else.
This spring, Buxton and the Twins are looking to recapture the spirit of 2017 — and the early returns are encouraging. Last week, the former No. 1 prospect in all of baseball hit what was already his fourth home run of spring training:
It’s been part of a tear that has Buxton looking like the best hitter in baseball during the spring so far. Although spring training results are easy to scoff at, they aren’t completely devoid of meaning — and that’s something the Twins will hang on to if it means there’s a chance Buxton rebounds and helps them close the gap in the AL Central.
According to my research from a few years ago, massive spring outlier performances do carry some predictive value going forward. It just takes a lot of improvement to signal real breakout potential: You need a weighted on-base average (wOBA) in the spring 17 points above projected — using the simple-yet-effective Marcel projection system — just to predict a 1-point increase in wOBA (relative to projection) during the regular season. So for most players, they’ll never hit well enough in the spring to move the needle of their season expectations very much either way.
But Buxton is hitting so well that it might actually be a much-needed sign of hope for his performance this season. When we compare players’ spring wOBA with their preseason Marcel projections, no player2 has exceeded expectations more than the Twins’ center fielder:
Buxton is tearing it up this spring
MLB players by difference in weighted on-base average (wOBA) between 2019 preseason Marcel projections and spring training performance
That 282-point difference in wOBA would imply a 17-point increase over projected during the regular season, good for a .314 mark when applied to Buxton’s on-base projection. That’s essentially the same wOBA Buxton had during his breakout 2017 campaign — a number that still wasn’t quite league average but was good enough to combine with his stellar defense to make him worth 4.3 wins above replacement (WAR),3 as opposed to the -0.4 number he produced last season. And for a Twins team that we currently project to win 84 games with a 37 percent chance of making the playoffs, even incremental improvements from a key player like Buxton could pay massive dividends in terms of postseason odds. My former colleague Rob Arthur estimated that, in the era of two wild cards, an 86-win team would generally increase its playoff probability by about 10 to 15 percentage points over an 84-win one. (The mid-80s win range is basically the steepest area for adding playoff odds with an extra win.)
Now, to pump the brakes a little on Buxton’s spring: 30 plate appearances is a very small sample, and most of them have come against sub-AAA quality pitchers, according to Baseball-Reference.com’s estimation. Buxton currently has a batting average on balls in play of .368, much higher than his regular-season career average of .320. His biggest action items as a hitter — plate patience and strike-zone judgment — have shown some signs of life this spring, but he’ll have to sustain them all season to convince skeptics that his skills have truly improved. And Minnesota can only hope those spring homers are merely a sign that Buxton will be an average power hitter again (like in 2017) rather than the guy who didn’t hit a single home run in 90 MLB at-bats last season.4
It really does just comes down to health and hitting for Buxton — defensively, on a per-inning basis, he was just as great last year as in 2017; he was also the fastest player in baseball. If Buxton can recapture a version of his 2017 production at the plate, it would be very good for the Twins in their quest to return to the American League Division Series for the first time since 2010. Minnesota added some impact free agents over the offseason (Marwin Gonzalez, Nelson Cruz, Blake Parker), while the division-favorite Cleveland Indians spent the winter shopping around their stars and generally resting on their laurels. Maybe the Twins are still longshots to truly knock the Indians off of their three-year perch as AL Central champs, but a healthy, star-caliber 2019 season from Buxton would make that task a lot easier.