We’re nearing the midpoint of the season (wow has it come quickly!), so it’s finally time to check in on the starting pitchers whose ERA marks are significantly higher than their SIERA marks. Naturally, many on this list are bad, even after figuring in some improvement, but there are enough potentially good pitchers that would make for actual fantasy targets. So let’s discuss them. For completeness purposes, I’m listing the entire top 20, but will only discuss those that matter.

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Following up on Friday’s Bullpen Report in which we reported that Roberto Osuna was unavailable due to illness, it turns out that it was mental illness. Arden Zwelling of Sportnet passed along the following comments from the Blue Jays closer:

I don’t really know how to explain it. I just feel anxious. I feel like I’m lost a little bit right now. This has nothing to do with me being on the field. I feel great out there. It’s just when I’m out of baseball. When I’m not on the field, I feel just weird and a little bit lost.

Needless to say, Osuna’s mental health should be everyone’s top priority. It was encouraging that he pitched the ninth inning on Sunday with an 8-2 lead. He allowed a two-out single but struck out the side.

Despite the appearance on Sunday, Osuna’s status as the team’s full-time closer remains in doubt for the time being while he works through his personal issues. Ryan Tepera is next in line for saves if Osuna needs to miss additional time.

Matt Bush, who was saddled with a blown save and a loss on Friday, closed out a one-run win over the Yankees on Sunday. With a blazing fastball, he breezed through the first two outs before Aaron Judge singled, and the inning culminated in a battle with Gary Sanchez, who had homered earlier in the game. Despite the drama, Bush struck out Sanchez on a sharp slider off the plate, giving him his ninth save of the season. Things haven’t been easy for Bush as of late: he currently has a troubling 4.55 FIP and 4.34 xFIP. However, Bush has the stuff to be at least an adequate closer, and the projections back that up. Recent struggles aside, Bush still seems to have a grasp on the closer’s role, although Keone Kela is lurking behind him.

Yusmeiro Petit picked up a two-inning save against the Red Sox. The Angels bullpen in general is going through significant change right now, with Bud Norris recently landing on the disabled list and Cam Bedrosian and Huston Street recently returning from injury. Bedrosian looks like the closer moving forward, at least until Norris returns, and Petit probably received the save chance on Sunday because Bedrosian had thrown 30 pitches the previous day. In that 30-pitch outing, Bedrosian allowed two runs on two hits, two walks, and a wild pitch.

Santiago Casilla allowed a home run and a single but picked up his 13th save against the White Sox. Casilla has been shaky all season, and Sunday was no exception. He now has a 4.28 ERA/4.20 FIP/4.75 xFIP in 27.1 innings. On his heels, Sean Doolittle has been outstanding as of late. Doolittle has 22 strikeouts and has allowed just one walk and two homers in 13.2 innings. True, the sample size is minuscule, but Doolittle’s 1.98 ERA/2.04 FIP/1.85 xFIP looks so much better than what Casilla has done this season. If Doolittle can prove that he’s healthy and reliable, it’s conceivable that a change in the pecking order could take place at some point this season.

Alex Colome pitched the top of the ninth in a tie game, and he allowed three runs on two hits, two intentional walks, and a hit batsman. As has been mentioned multiple times in the Bullpen Report this year, Colome’s strikeout rate has fallen back down to earth after he put up impressive numbers in that category last season. But for the most part, he still gets the job done. Despite the 4.40 xFIP this season, he has just a 3.15 ERA and 3.17 FIP, and that same trend (beating his xFIP) has held true throughout his major league career. The projections forecast good things moving forward from Colome as well, so today’s outing looks like just a rare bad one for Colome.

Joe Kelly extended his scoreless streak to 21 consecutive outings dating back to May 1. In that 18.1 inning span, Kelly has a 26.8 percent strikeout rate and 55.6 percent ground ball rate. He’s picked up holds in three of his last four appearances and has nine on the season. Overall, Kelly boasts a 1.10 ERA/3.05 FIP/3.98 xFIP in 32.2 innings this season, but his strikeout rate is projected to increase (it’s just 18.5 percent on the year), and he could be on his way to a sustained and prominent role in the Red Sox ‘pen. He’s bumping Heath Hembree, who has just one hold since May 26, off the grid for now.

Other closer activity: A.J. Ramos picked up a four-out save (12). Brandon Kintzler pitched a perfect ninth in a non-save situation. Brach Brach pitched a scoreless eighth and ninth and was rewarded with a win. Craig Kimbrel allowed a run on two hits and a strikeout in a non-save situation. Raisel Iglesias pitched 1.2 innings to finish off the Nationals in a non-save situation. Fernando Rodney pitched a scoreless top of the ninth in a tie game. He struck out one and walked a batter. Brandon Maurer pitched the top of the ninth in a tie game and allowed two runs on two hits and a walk. He has a 6.53 ERA and a 3.86 xFIP. Justin Wilson struck out two in a perfect ninth to notch his sixth save of the season. Kenley Jansen entered with a one-run lead with one out in the eighth, and he ultimately finished off the Rockies in the ninth with a six-run lead. Jansen added to the offensive explosion in the bottom of the eighth with an RBI double off Greg Holland.

Closer Grid:

[Green light, yellow light, red light: the colors represent the volatility of the bullpen order.]

In my last two articles on streaky hitters, I came up with a method to identify when hitters entered and exited hot and cold streaks. However, to really make a difference for fantasy players, streaks must both be identifiable and persistent. There’s no point in benching a hitter in a cold streak if that streak is just as likely to be over with as not when you realize it is happening. And so, for this article, I decided to look at hitter performances in the days following the recognition of streaks.

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Change in pitch mix often coincides with a change in performance. It’s one of the few statistical changes we could identify immediately. So let’s take a look at which American League starting pitchers have changed their pitch mix versus last year the most.

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A few weeks ago, I stole RotoGraphs contributor Joe Douglas’ idea (with his permission) as I pointed out that the “generic” Tommy Pham had provided surprisingly similar offensive production in his career to the “brand name” Michael Conforto. It was a fun exercise, and one that we’re going to do again today.

To set the stage, we’re going to talk about two rookies with outfield eligibility. One receives plenty of attention and hype; the other, not so much. Mr. Generic debuted in 2016 but is still considered a rookie this season, while Mr. Brand Name debuted in 2017. Here’s how they’ve fared so far this year:

The first thing that jumps out is the nearly 100-point difference in BABIP, and the fact that Mr. Generic’s BABIP is perhaps unsustainably high. More about that in a minute.

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A special Father’s Day edition of the Bullpen Report, with a tip of the hat to all the baseball-loving dads out there. It was a busy Sunday for bullpen activity across the major leagues…

Mark Melancon entered the ninth with a two-run lead and blew his fourth save of the season in 14 chances. Melancon missed time earlier this year with a pronator strain in his right forearm, and apparently it’s a lingering issue. The loss dropped the Giants to 26-45 and 19.5 games back in the National League West. Since the Giants are probably just about ready to throw in the towel on 2017, Melancon will probably land on the disabled list before too long if he really is injured. He’s already blown as many saves and allowed as many home runs in 17.2 innings this year as he did in 71.1 innings last year. Hunter Strickland is probably next in line for saves in San Francisco should Melancon miss time, with Derek Law also a possibility, but it’s worth noting that Major League Baseball still hasn’t ruled on Strickland’s suspension appeal for his involvement in the incident with Bryce Harper late last month. A ruling (and subsequent suspension) should be forthcoming for Strickland.

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I despise the use of small sample sizes, but pitchers change so frequently that it’s not so silly after all to evaluate shifts in underlying skills over a relatively small number of starts. So as I do every once in a while, I peruse the SwStk% leaderboard over the last 30 days. Let’s discuss some of the interesting names on there, shall we?

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In my introductory article on streaky hitters, I used Anthony Rendon as a narrative hook. I wish I had waited a couple of weeks so I could have used Scooter Gennett instead. Gennett hadn’t hit a home run since April 11 before he smashed four on Tuesday, and based on my criteria, Gennett has now officially snapped the cold streak he had been on since May 12 which featured just one hit over his most recent seven games. More to the point, now that I’ve defined what I consider a streaky hitter to be, I wanted to look at some multi-year trends to see if I could identify certain hitters as consistently streaky or not streaky and hopefully pinpoint some specific skills that lead to those tendencies.

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There are 10 qualified starting pitchers with an xFIP under 2.80 in the last 30 days.

Among them are predictable names like Chris Archer (2.52), Clayton Kershaw (2.53), Chris Sale (2.64), Johnny Cueto (2.74), and Zack Greinke (2.76).

The other five aren’t as well known, and therefore, they are more intriguing.

Being in the top 10 xFIP leaderboard for a month is not necessarily a huge accomplishment. However, xFIP has one of the highest correlations with future ERA of all pitching metrics, so it’s among the most relevant numbers to examine when searching for potential breakouts or analyzing the legitimacy of poor or plus performance.

Below is a table sorted by the top 10 qualified starting pitchers in xFIP over the last 30 days*, with the best statistic in each category highlighted in yellow, and the worst statistic in each category highlighted in red: Read the rest of this entry »

Last week, I began my examination of in-season BABIP with a look at how the league was utilizing the defensive shift and individual players were being shifted versus last season. It was a precursor to identifying and discussing where hitters currently stand with regards to my new xBABIP equation, which was developed earlier in the year and accounts for defensive shifts. So let’s dive into the hitters who have overachieved the most, meaning their BABIP marks are significantly higher than their xBABIPs.

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