Eric Thames is, at present, the major-league leader in wRC+. He’s also the major-league leader in home runs, and he’s the major-league leader in WAR. He’s gone deep in, what, five games in a row? That would be easy enough for me to fact-check, but I don’t want to waste my time checking those facts when Thames might extend his own streak at any moment. He’s homered in many games in a row. Let’s unpack what’s going on.

Literally yesterday, Nick wrote a post here entitled “Eric Thames Is Still Mashing.” That post spoke of Thames’ considerable power. Literally hours ago, Dave wrote a post here entitled “The Even Scarier Eric Thames Stat.” That post spoke of Thames’ seemingly improved ability to make contact. Power? Check! Contact? Check! What’s something that might drive both those things? Right — swinging at the correct pitches. At this writing, Eric Thames has baseball’s third-lowest swing rate at pitches out of the zone.

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As Nick noted yesterday, Eric Thames is destroying the baseball right now. Through his first 48 plate appearances, he’s hitting .405/.479/1.000, good for a ridiculous .604 wOBA and 287 wRC+, both the best in baseball. He’s homered in five consecutive games, and 11 of his 17 hits this year have gone for extra bases. Power was the one part of Thames’ game in which we were fairly confident, but he’s putting to rest any doubts about whether his thump would translate back to the big leagues.

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We never really know what to expect when a player comes to Major League Baseball from a foreign league. The rules of the game are mostly identical over there, of course, but the competition level is different. It’s a completely different set of hitters and pitchers in a completely different set of parks. Even for truly exceptional talents, there’s no real telling how a player’s skills will translate precisely from league to league. The calculus gets even more interesting when it involves a player who started here, faltered, went elsewhere, and thrived.

April is a time of guessing and extrapolating and of the occasional hot take. We like to draw conclusions when we perhaps shouldn’t. That’s half of the fun of April baseball. And Eric Thames is one of the cool new things happening in baseball right now. Because, as we’ve been reminded, this man can hit some dingers. He just finished hitting five in one series against the Reds.

Now, the Reds play in a tiny little stadium, and they don’t have the best pitching in the world. If Ryan Braun had been the one to do this, it would be a cool little footnote, because we expect guys like Braun to stomp on subpar pitching in tiny ballparks. If Jett Bandy had done this, I’d assure you that Jett Bandy is, in fact, a real person, and that this is an aberration.

Thames is a different matter. This is Eric Thames, who left American organized ball and rather quickly became a league-wide sensation in Korea. This is Eric Thames, who got big, grew a mighty beard, donned what looks like cybernetic robot armor on his right arm, and promptly started hitting massive bombs. Thames took on a nearly mythic quality for a few years, watched from afar by those who still remembered his name and who pay attention to foreign leagues. We got our wish, and he’s back. We get to see if a man who couldn’t cut it in his first try can succeed after dominating a foreign circuit. So far, he’s doing quite well.

It’s probably too early to declare the Thames experiment a success. It’s April 17th, after all. The Brewers have played 13 games, and Thames now has just 44 plate appearances under his belt. He’s already created 1 WAR of value, and that translates to about $8 million of value, but he could just as easily create negative value in the coming weeks as a scouting report starts to form. Baseball is, of course, also not played in terms of cost-effectiveness and surplus value. Thames wants to succeed for Thames, not to make David Stearns look smart. He’s still got a long road to go.

In short, we can’t tell anything for certain from this collection of data. There’s simply not enough here. But consider this, because it is the height of April fun: the two highest single-season ISO marks of all time belong, rather predictably, to Barry Bonds and Babe Ruth. Bonds put up a staggering .536 in 2001; Ruth, a much-lower-but-still-quite-impressive .473 in 1920.

Eric Thames currently has a .553 ISO.

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Daily notes on prospects from lead prospect analyst Eric Longenhagen.

Mike Soroka, RHP, Atlanta (Profile)
Level: Double-A   Age: 19   Org Rank: 9  Top 100: 93
Line: 5 IP, 2 H, 0 BB, 2 H, 7 K

Notes
Soroka is the most polished strike-thrower of Atlanta’s young arms and has mature competitive poise. Much was made of his aggressive assignment to Double-A, but this was a promising start.

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Previous editions: AL East / AL Central / NL East.

The World Baseball Classic is in its final stages, meaning that both the end of spring training and the start of the regular season are in sight. We’d better get through the remaining installments in this series quickly.

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There’s a revolution happening in the batting cage. We’ve noticed that batted-ball data is changing slightly and that hitters are saying different things about the intentions of their swings. But on the ground, where these hitters are training to improve, a few new tools have appeared that are helping those hitters to realize their intentions with better results. Those tools make a link between hitting and pitching that may open our eyes to the possibility of better development practices in both places.

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Last year, only one team improved their exit velocity in the second half as much as the Brewers did, when they went from 17th in the league to fifth. That might not surprise you, because you’ve read often about the young power duo on that team — Keon Broxton and Domingo Santana — and those two were at their healthiest and most dynamic in the second half. And yet the team was 20th in park- and league-adjusted weighted run creation during that same period. There’s always something else that requires attention, both players agreed in camp this week.

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In the Orioles’ opening game last season, Mark Trumbo stole a base. It was his first stolen base since 2014, but anyway, as of that point in time, the Orioles had one steal, and the Brewers had zero steals. The Orioles would hold that 1-0 advantage until April 8, when Keon Broxton stole a bag. The teams remained tied until April 12, when Ryan Flaherty put the Orioles back in front 2-1. That held until April 15, when the Brewers got steals from Broxton, Jonathan Villar, and Aaron Hill. At that point, the Brewers surged ahead, and they never looked back. The gap would shortly reach double digits.

At the end of this post, I’m going to ask you a question about steals. There are no stakes, and this isn’t even all that important. While the Brewers are more athletic than the Orioles are, the Orioles are better than the Brewers are, and that’s the way the Orioles like it. So, don’t think too hard. But you’re probably going to have to think a little bit. And, given the question, even that much is ridiculous.

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Here’s the thing about bunting: it can be a good idea if the third baseman is playing too far back. The chance of a hit goes up in that case, and a successful bunt often causes the third baseman to play more shallow in future plate appearances, so future balls in play receive a benefit. That’s one of those games within a game we see all the time in baseball: once the positioning deviates from “normal” by a certain degree, the batter receives a benefit. Then the defender has to change his approach.

This tension created by the bunt illustrates how offenses and defenses react to each other’s tendencies. That same sort of balance between fielder and hitter might be playing out on an even broader scale, however, when it comes to the shift in general.

Too many shifts in the game, and the players begin to adjust. They develop more of a two-strike approach, they find a way to put the ball in play on the ground the other way, or they make sure that they lift the ball if they’re going to pull it. There’s evidence that players are already working on lifting the ball more as a group, pulling the ball in the air more often than they have in five years, and have improved on hitting opposite-field ground balls. So maybe this next table is no surprise.

The league has improved against the shift! The shift is dead! Or, wait: the league has actually improved as a whole over this timeframe, and the difference between the two is still about the same. And every team would take a .292 wOBA against over a .297 number. Long live the shift.

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It’s exciting to have so many statistics available to us when we’re trying to evaluate our favorite players. From the players’ perspective, though, it’s probably more exciting when those statistics allow them to improve themselves. From that point of view, metrics like launch angle and spin rate probably have a certain appeal that some others don’t: they provide a measurement of something that might help a player understand his game and get better.

There’s one problem, though — with spin rate, at least. Indications are that it’s difficult for a pitcher to change his in any material way. Still, as Jeremy Jeffress may have found, it can provide a window into betterment.

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