There have been some scary moments in the first few weeks of the 2021 major league season. On April 28, Phillies Manager Joe Girardi was ejected after both Didi Gregorius and Bryce Harper were hit by pitches while they were playing the Cardinals. Harper’s incident was particularly scary as he was hit in the face with a 97 mph fastball. On April 5, Cubs catcher Willson Contreras was plunked by a 93 mph fastball to the helmet. Two days later Reds rookie Jonathan India had a similar moment after a fastball ricocheted off his helmet.

It’s not your imagination: batters are being hit by wayward pitches at a record clip. Ken Rosenthal of The Athletic made note of the trend this morning. Baseball Prospectus’ Rob Mains recently published an excellent breakdown of this year’s record-setting pace for hit batsmen. I was particularly taken aback by this chart showing that prior to 2018, no season in baseball history had a hit batsman in more than 1 in 103 plate appearances:

Mains continues:

There was one batter hit per 96 plate appearances in 2018, a new record. It fell further, to 94, in 2019. Then all the way to 81 in last year’s short, weird season.

This year? Through Tuesday night’s games, it’s down to 74.5. Batters are being hit thirty-eight percent more frequently than in 1901. There are just over eight hit batters for every five just a decade ago. We’re averaging 0.997 hit batters per game in 2021, a single HBP shy of one per game—a level the sport’s never approached. Batters so far have a .309 on-base percentage. Hit batters account for thirteen points of that figure. Ten years ago, there were only eight points of hit batters in MLB’s .321 OBP.

I wanted to take a look at possible reasons the HBP rate is at record levels so far in 2021, but first we need to be clear about which parts of this trend are continuations from previous seasons and which parts are actually new. In 2019, Devan Fink demonstrated that the HBP rate per plate appearance was approaching the highest levels seen since the early 1900s. He looked at increased velocity and reliever usage to demonstrate that while a pitches’ speed didn’t necessarily mean a pitcher had worse command, relievers had a larger share of HBP than their starting counterparts. Read the rest of this entry »

These are notes on prospects from lead prospect analyst Eric Longenhagen. Read previous installments here.

Bryce Johnson, CF, San Francisco Giants
Level & Affiliate: Triple-A Sacramento  Age: 25   Org Rank: NR   FV: 35
Line: 5-for-5, 2 2B

Notes
Johnson was a 2017 sixth round pick out of Sam Houston State, his draft stock driven by his above-average speed, terrific baseball frame, and feel for the strike zone. His career .271/.358/.361 line in the minors perfectly illustrates his offensive skillset and flaws. He’s the sort of hitter who can be a bench outfielder if he can play a dynamic center field, where Johnson is closer to average. While the hitting environment in Las Vegas (where Sacramento spent their first six games) likely aided Johnson’s incredible start to the year (.684/.727/1.263 with five multi-hit games in six days), his swing is clearly different now than it was in 2019, so maybe he will actually hit for some more power now. His stride is quite a bit longer now than it was when we last saw him and the bigger move forward has made his swing a little more athletic. Johnson’s back foot is coming off the ground close to the time of contact, not something you’d see with his last swing’s more conservative footwork. It’s too early to re-evaluate an older hitter like this, and even if this change proves to be meaningful, Johnson is still probably just a bench player, but it might be the difference between him getting a cup of coffee at some point or not. Read the rest of this entry »

We are reaching peak levels of Shohei Ohtani early in the 2021 season. The true two-way play we were teased with in 2018 is now on full display, with both hitting and pitching in the same game. But as incredible as the hitting has been, there are still questions about Ohtani’s performance as a pitcher: In 18.2 innings, he has somehow pitched to a 2.41 ERA and 3.96 FIP despite a 22% walk rate that is third worst in the league among pitchers with 10 innings or more. Yet in the midst of massive control issues and everything he’s doing at the plate, Ohtani is continuing to develop as a pitcher, adding a multi-faceted cutter to the pitch mix.

There’s a Jekyll and Hyde nature that comes about even within Ohtani’s starts. Take a look at his April 26 outing in Texas to see what I’m talking about.

Updating Ohtani's night on the mound…

1st inning: 4 runs, 2 hits, 2 walks, HBP, 1 K, 11/29 strikes
Since: 0 runs, 1 hit, 0 walks, 8 Ks, 30/46 strikes https://t.co/H9xcc9hH6i

— Jack Harris (@ByJackHarris) April 27, 2021

Something obviously clicked after the first, and all was well again. But looking at his pitch usage that night tells a story itself about where Ohtani is in his development as a pitcher.

It’s an overly simple bit of visualization, and it should be pretty clear what’s going on: Ohtani is largely only comfortable with the fastball and splitter. You can see that the slider, curveball and cutter barely feature, with the latter two popping up in the first inning but not after and the slider appearing only in the fifth and sixth. That’s in line with his career (70 innings) to date: fastball (52% usage), splitter (21%), slider (12%), curve (6%), and cutter (7%). Not that there isn’t precedent for a pitcher who can live primarily off of a four-seam/splitter mix (cf. Kevin Gausman), but it’s a dangerous line for a starter to walk, especially with Ohtani’s command as is.

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In 2018, Matt Barnes had a promising season for the Red Sox. He struck out 36.2% of the batters he faced en route to a 3.65 ERA and 2.71 FIP. His one weakness? He walked 11.7% of the batters he faced, a dangerous number. That pattern carried through to 2019; he struck out 38.6% of his opponents but walked 13.3% of them. That strikeout rate is wonderful, but the walks gave him little margin for error, as evidenced by 2020, when he struck out 30.4% of his opponents (still great) but walked 13.7% on his way to a below-replacement-level season.

In 2021, you’ll never believe it — Barnes is striking out the world again, with a 48.4% strikeout rate that’s fourth among relievers, behind only Aroldis Chapman, James Karinchak, and Josh Hader. Oh yeah — he’s also walking 4.8% of his opponents and has been quite possibly the most valuable reliever in the game. Let’s get an explanation for that, shall we?

At surface level, it’s easy! Take a look at swinging strike rate, a statistic that becomes reliable quickly:

A 19.1% swinging strike rate is excellent; top-of-the-league excellent, really. Also true: Barnes hasn’t changed his pitch mix. He’s a two-pitch reliever, with a riding four-seamer and hammer curve. He throws them both roughly half the time, and they spin more or less exactly opposite out of his hand, which seems to help them both play up:

Great, problem solved. Hard curveball, decent fastball, they both play into each other’s deception, sounds like a good reliever to me. One small problem: there are maybe 50 relievers like that in baseball, and Barnes was also like that in the past, when he was far more walk-prone without his current killer strikeout numbers. Read the rest of this entry »

After three weeks of these rankings and plenty of feedback — both positive and constructive — I’ve decided to change the way pitching factors into overall team quality. I had been using FIP to assess pitching performance, but using only peripherals undervalued some teams who were actually quite good at preventing runs and overvalued other teams who couldn’t keep runs off the board despite good pitching fundamentals. So instead of using straight park- and league-adjusted FIP as the pitching metric, I’ll be using a straight 50/50 split of FIP and RA9- beginning this week. This gives us a way to evaluate a team’s pitching staff with a blend of actual run prevention (including teams who may or may not benefit from good defense) and pitching talent. This 50/50 composite is shown below as SP- and RP-. The rest of the factors remain the same — offense is represented by wRC+ and combined with the two pitching factors to create an overall team quality metric. Then a team’s expected win-loss record (“luck”) is factored in to produce a power ranking.

There’s a new team on top of the rankings this week. Despite losing Luis Robert for months on Sunday, the White Sox rose to the highest spot in the rankings after allowing just five total runs to score last week. Their starting rotation has been the best in baseball by a wide margin — the runs allowed by Lucas Giolito on Sunday were the first a White Sox starter had allowed in a week. There are certainly some concerns about their outfield, with two of their young stars now out for extended periods of time. Read the rest of this entry »

These are notes on prospects from lead prospect analyst Eric Longenhagen. Read previous installments here.

Corbin Carroll, CF, Arizona Diamondbacks
Level & Affiliate: Hi-A Hillsboro   Age: 20   Org Rank: 1 (20 overall)   FV: 60
Line: 3-for-5, HR, 3B, BB, 2 SB

Notes
I’m going to bet Carroll goes to the Futures Game and ends up promoted to Double-A shortly after the showcase. He’s shown no signs of slowing down after looking like the best player in all of Arizona during 2020 instructs. This is the kind of player who’s going to out-produce his raw power in games because the quality of his contact is just so good. His homer yesterday (which tied the game in the ninth) was hit to the opposite field. It wasn’t like a lot of oppo bombs that rely on brute strength (think of Giancarlo Stanton’s right-center homers) or just happen to suit the swing path of someone with big power (Ryan Howard). Instead, Carroll just dove to try to cover the outer third of the plate and poked the barrel there, and he hit the bottom of the ball with the sweet spot of the bat. Read the rest of this entry »

The Twins have won the AL Central in each of the past two seasons, but their chances for running their streak to three in a row have taken some major hits. Not only have they stumbled out of the gate with a 12-20 record, but now they’ve lost Byron Buxton, potentially for several weeks, due to a Grade 2 hip strain. Adding insult to injury, at this writing the team owns the dubious distinction of the largest drop in their Playoff Odds since Opening Day.

The 27-year-old Buxton was injured during Thursday’s 4-3 loss to the Rangers. He pulled up hurt while running out a groundball in the ninth inning, but he may have injured himself before that. In the top of the seventh inning, he crashed into the outfield wall and then tumbled to the ground in an unsuccessful attempt to rob Jonah Heim of a home run:

In the bottom of the seventh, he didn’t run hard to first base on a groundout (I made a GIF because the video’s not embeddable, but here you can hear Twins play-by-play announcer Dick Bremer noting, “Buxton does not run hard out of the box”):

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When it comes to early-season dominance or struggles, BABIP tends to be a featured player in many of the odder-looking lines. At the top of the league, you have the already amazing Mike Trout sporting a .519 BABIP, fueling a video game-like 236 wRC+ and a 1.224 OPS. On the flip side, quality players are still looking way up at the Mendoza line, such as Yasmani Grandal (.121 BA, .125 BABIP) or Kyle Tucker (.179 BA, .173 BABIP). Even though the evidence suggests that there’s more variability in BABIP ability among hitters than pitchers, a month of a season is a pitifully small amount of time to establish a new baseline expectation for BABIP. So, who is “earning” their BABIP and who isn’t so far?

Similar to the “x” Statcast stats, the ZiPS calculates “z” stats — I’ll let you guess what the z stands for — as part of its year-end projection model. These aren’t yet used in the simpler in-season model, though that’s in the works. Similar to Statcast, ZiPS estimates BABIP from the component parts: launch angle, exit velocity, speed data (for grounders), and so on. ZiPS also considers the direction a ball is hit, as a player’s pull tendency is a repeatable skill. This last data matters quite a bit. For example, grounders hit up the middle end up as singles about half the time, but grounders hit 15 degrees to the left or right of the second base bag are hits about a tenth of the time.

How does it work? The numbers are still volatile, but if all you have is zBABIP and actual BABIP, zBABIP is historically the better predictor. For all players with 50 PA in both 2020 and ’21, 2020 zBABIP is closer to 2021 BABIP than 2020 BABIP for 65% of players. Historically, the best predictor of actual BABIP, again using only these two stats, is a linear combination of 0.9 zBABIP and 0.1 actual BABIP.

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This is Part Two of the April edition of my monthly column, in which I recap what’s been going on in the Korean Baseball Organization on both a league- and team-wide scale. In case you missed it, Part One provided a brief introduction to this column, discussed league-wide trends, then covered the Samsung Lions, LG Twins, KT Wiz, and SSG Landers. Today’s post will cover the remaining six teams. If you have any questions, feel free to leave them as comments or reach out to me via Twitter. Without further ado, let’s talk some KBO!

Team Notes

Doosan Bears

The offseason was not kind to the Doosan Bears. Pitchers Chris Flexen and Raúl Alcántara both had phenomenal years, but were whisked away by foreign leagues. They also lost multiple regulars to free agency, including first baseman Jae-il Oh 오재일 and second baseman Joo-hwan Choi 최주환, both formidable hitters.

That doesn’t mean the Bears are no longer a playoff-caliber team – there’s still an abundance of talent on the roster, but there’s no guarantee this time around. At least replacement signee Walker Lockett has averaged six innings per start with a 3.54 FIP, but Aríel Miranda 미란다 seems like a disaster waiting to happen. His 36 strikeouts in 28.1 innings don’t look as impressive when you consider that (a) they’re spread across six starts, and (b) he also has 22 walks, six of them issued in a single outing. There’s upside, but unless Miranda finds the zone, the Bears will have a headache to deal with. Read the rest of this entry »