Archive for Bullpen Report

Bullpen Report: May 13, 2016

So the Phillies bullpen is becoming a strength after a rough start, as Hector Neris and Jeanmar Gomez were perfect in the 8th and 9th, each striking out one. Neris continues to impress by not allowing a run in 17 of his 20 appearances, posting a 1.64 ERA (3.32 FIP). The FIP is high probably because of the 3 home runs he has given up, but outside of that he has looked very strong and also earned his ninth hold of the year for those of you counting. Gomez has also been such a pleasant surprise, despite really only a slight uptick in both his K/9 and K%. The ERA is down from last year (3.01 to 2.61), but the FIP has gone up (3.25 to 3.63). Still has been an excellent closer so far, but the question is how long will this last?
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Bullpen Report: May 3, 2016

Seattle’s Tony Zych will be placed on the 15-day DL for rotator cuff tendinitis, as the origins and timetable for return are not known. Last year in a small sample Zych looked very strong. Zych was continuing to open eyes with a 14.25 K/9 this season, but his control was also concern with a BB/9 of 6. Steve Johnson was called up to fill his roster spot, but not his role as the second set-up man. Johnson impressed in AAA this year with 20 K’s and 2 BB’s over 16 innings. Yet in his limited major league exposure, Johnson has produced a 4.25 ERA (4.33 FIP) with a good K rate (10.49 per 9) and poor BB rate (5.46 per 9). Nick Vincent will be second in line for saves it seems, and he has performed well this season. Vincent had been a solid low leverage reliever for the Padres, and there appears to have been improvements made this year. His strikeouts are slightly up from the past and he has yet to issue a walk. The two dings on his numbers this year have been the two home runs he gave up this year, but I’m still intrigued by the batted ball data. His previous career high GB/FB ratio was 1.26. This season: 2.17. I know, it’s early and we need to see more if we can conclude whether something has changed. He can still be a nice source for Holds while Zych is sidelined.
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Bullpen Report: April 30, 2016

Zach Britton left a tied game with a lower body injury and took the loss. Britton struck out the first two batters he faced, and then left the game after Adam Eaton bunted towards him. Vance Worley came in to replace Britton and gave up the inherited run with two walks and a single. We don’t know the severity of Britton’s injury yet, but certainly monitor that situation moving forward. A potential replacement if he were to be shelved for any time would probably be Darren O’Day, who earned his first blown save of the season. O’Day pitched the 8th gave up three hits including a three-run homer by Todd Frazier.
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Bullpen Report: April 16, 2015

There were a lot of save opportunities today and the closers (one set-up man) were perfect in converting these saves (or at least when I published this). I won’t get into every save tonight, just the more interesting ones.

 

Sean Dolittle faced one batter in the 8th inning tonight after surrendering a home run the night before down by a run. Instead of turning to Doolittle for the four-out save, Bob Melvin went to Ryan Madson for the first time since he gave up two runs to the Angels. Madson wasn’t perfect and gave up an unearned run, but he did get himself his third save of the season. Using Doolitle on Friday was not necessarily ideal for Melvin, so there will still be some save opportunities ahead for Doolittle. Doolittle has given up runs in his previous two appearances, so it’s not a rock solid hold on the closer role, which seems to be inconsistent anyway with the A’s using their top relievers in high leverage situations for the most part.
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Bullpen Report: April 9, 2016

  • Santiago Casilla blew his first save of the season against the Dodgers today, though a key bobble by Kelby Tomlinson is taking away some of that heat. Casilla loaded the bases with one out, then induced what seemed to be a game-ending double play ball to Tomlinson. Tomlinson bobbled the ball, allowing the run to score, and only getting one out. Casilla’s job is safe for now, but Sergio Romo and Hunter Strickland both pitched scoreless innings, earning themselves holds, and would be next in line for saves. Again, don’t see it happening just yet as a result of today’s blown save since Casilla is not 100% to blame. Romo pitched the 7th and Strickland came in with a runner on in the 8th. Don’t think this is indicative of who is necessarily next in line, just thought it was worth noting.
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Bullpen Report: April 2, 2016


Building a Closer Through Outcomes

There are a sundry of middle/set-up relievers that can succeed in the closer role if given the opportunity. A few obvious: Wade Davis if something happens to Greg Holland… Wil Myers for James Shields and who?!; Ken Giles if the Phillies can somehow find a trade partner for the grundle-grabber; and Brad Boxberger if not Jake McGee. I assume David Robertson signs elsewhere and Dellin Betances steps in.

Lets’ look at potential closers using reliever outcomes. Here are the average contact and balls in play-related outcomes for all relievers that qualified and specifically relievers with 10+ saves:

Command: K% BB% K-BB% Ct% SwStr% Zn% F-Str%
AVG for RP w/ > 10 SV 0.27 0.07 0.19 0.75 0.12 0.46 0.63
SD for RP w/ > 10 SV 0.08 0.03 0.08 0.06 0.03 0.04 0.04
AVG for all qualified RP’s 0.22 0.09 0.14 0.77 0.11 0.45 0.60
SD for all qualified RP’s 0.07 0.03 0.07 0.05 0.03 0.04 0.05
Balls In Play: GB% FB% IFFB% GB/FB HR/FB LOB% BABIP
AVG for RP w/ > 10 SV 0.43 0.37 0.11 1.40 0.08 0.78 0.275
SD for RP w/ > 10 SV 0.11 0.10 0.04 1.02 0.05 0.08 0.042
AVG for all qualified RP’s 0.45 0.35 0.09 1.50 0.09 0.75 0.289
SD for all qualified RP’s 0.10 0.09 0.05 0.81 0.05 0.08 0.044

Our Filters: 

  • Contact-related outcomes: For K-BB%, Ct% and SwStr%, I filtered simply by the general relief pitcher averages. Everyone below average in these 3 categories was filtered out.
  • Command-related outcomes: For zone% and first-pitch-strike%, I used 1 standard deviation below average and 1.25 SD’s below average in BABIP as filters. 1.25 SD allowed me to omit only the relievers that had career BABIP’s higher than we would like to see for a closer or in general. I didn’t want to screen out Jenrry Mejia (1.24 SD below the mean) or Tim Stauffer (1.19 SD below), because there’s a possibility for BABIP regression.
  • Balls In Play-related outcomes: I was lax on the balls in play outcomes. I went with a 40% Grounder rate and 45% Flyball rate as my filters versus the averages that you see above because below average fly-rates don’t mean much in places like Tampa (where Boxberger is elite but below average in fly-rates); and above average grounder-rates don’t mean as much with atrocious defense behind you (hence Corey Kluber’s unlucky BABIP, which should have been closer to .299 per end-of-season xBABIP/Inside Edge data), but I digress.

Using these filters, we’re left with a robust list of above-average relievers beyond just closers (scroll down for the noted filters):

What happens if we use the command (K-BB%)/contact (Ct% and SwStr%) related averages for relievers with more than 10 saves this year? 

…We’re left with some elite closers and then a few interesting names.

Last year, Danny Farquhar (just missed the list this year) had a top 20 swinging-strike rate – about a percent better than Fernando Rodney, but it was masked by his BABIP and left-on-base rate that killed his surface stats (4.20 ERA vs. 2.40 xFIP). This year, he actually outperformed his xFIP with a 2.66 ERA. After an early season MASH Report on Rodney’s velocity, I eyed Farquhar. At least keep him in mind next year if anything does happen to Rodney.

Josh Edgin (Mets for those of you that don’t know) has a top 65 contact-rate sandwiched between Mark Melancon and Jake McGee and even induced grounders 50% of the time. He has a pretty extensive repertoire as well. In order of usage: Fourseamer, Slider, Curve, Change, Cutter and Sinker. According to his Brooks Player Card, he has great swing and miss rates on his Curve (>56%), Cutter (50%), Slider (>42%) and Sinker (33%). Even his Change approaches 30%. This isn’t the case on his Fastball, but at 93+ MPH, it induces a decent amount of grounders (1.8 GB/FB). Keep in mind he had late-season elbow issues which effected his velocity by a MPH or so, but he could be called upon to get Mejia out of a jam. I like him better than an unhealthy Bobby Parnell and Jeurys Familia from a command perspective for another year.

Zach Duke did his best Craig Kimbrel impression prior to the R2M monster hitting him in August. Prior to 8/1, Duke had a 34.9% K-rate and 27.3 K-BB%. Kimbrel ended the year with a 38.9% K-rate and 28.3 K-BB%. I think August and September brought him back to his realistic value (~2.50 ERA, 1.15 WHIP). It will be interesting to see who closes for the Brewers if they let Francisco Rodriguez go. Both Duke and Will Smith have above average (even for RP w/ 10+ saves) swing-and-miss. Will Smith should have additional command next year, but Zack Duke induces grounders better which I like in my closers/in Milwaukee. They also have Jonathan Broxton. The hierarchy seemed to be K-rod-Broxton-Smith late last season. If that’s the case, they should use Duke more (former starter) and in higher leverage situations. He was equally solid against both lefties (.258 wOBA) and righties (.262 wOBA).

Oliver Perez everybody! I thought I could filter him out by his splits being a lefty, but like 2012, he was more effective vs. righties (and faced 44 more of them). The D-backs have Addison Reed, up-and-comer Evan Marshall as well as Daniel Hudson caught touching 97 MPH so if not by outcomes or splits, we can filter Perez out by opportunity.

Darren O’Day and Andrew Miller is part of one dominating Baltimore bullpen – one that gets referenced by anyone who thinks the Orioles can beat the Tigers in the ALDS. Notice that Zach Britton didn’t make either of the above lists! He was filtered out by his below average K-BB% (13.70%). It’s his 75+% grounder rate (hence the 81+% left-on-base rate and .215 BABIP) that keeps him elite in Baltimore. The only concern you can have with O’Day is a fastball velocity almost 2 standard deviations below the mean for relievers, but his arm angle combined with that slider still induces a 30+% whiff-rate on both pitches. Miller’s slider though is a world apart from O’Day’s: only Pedro Strop, Will Smith, Jake Diekman, Greg Holland and Oliver Perez induces more whiffs than Miller’s 55% according to Baseball Prospectus’ Pitchf/x Leaderboards.  I doubt we’ll see a closer-transition next year in Baltimore unless Britton’s GB/FB ratio takes a drastic dive because his HR/FB ratio, which approached 18%, could be an issue.

An xBABIP review

On the last day of the season, @jeffwzimmerman provided me with Pitch xBABIP based on inside edge data. Let’s look at some of the bigger xBABIP differentials to keep in mind:

The last column depicts the z-score for BABIP differential. Francisco Rodriguez was expected to have a BABIP about 120 points above his actual BABIP. I highlighted (red/bad; green/good) the xBABIP z-scores as well so that you know whether or not to actually be concerned meaning sure Aaron Sanchez has the 5th biggest BABIP differential (over 2 standard deviations from the mean), but a .239 xBABIP is still utterly elite (3.34 SD’s from the mean). On the other side of the equation, it’s nice to see Evan Marshall, Carlos Martinez and Adam Ottavino (albeit in Colorado) with large BABIP differentials. Marshall and Martinez even have xBABIP’s over .5SD from the mean.

The last bit of fun

It was a very fun year to be doing bullpen reports for RotoGraphs. Aroldis Chapman broke the single-season strikeout rate of 2012 Craig Kimbrel (50.2%). He struck out 52.5% of the hitters he faced. Andrew Miller (42.6%) and Brad Boxberger (42.1%) also made the top 10 seasons ever. Dellin Betances (39.6%), Wade Davis (39.1%) and Craig Kimbrel (38.9%) made the top 20. Chapman’s swinging-strike% of 20% beat ’12 Kimbrel by .8%, but he couldn’t pass ’04 Lidge, ’03 Gagne, ’04 Gagne, ’02 Gagne or ’05 Lidge. Chapman, Miller, Doolittle, Boxberger, Betances (Wade Davis and Kenley Jansen close behind) all had historical, top 20 K-BB rates. Relievers dominate this list: only ’99 Pedro Martinez (#12), ’00 Pedro Martinez (#21), ’01 Randy Johnson (#27) and ’01 Pedro Martinez (#28) make it into the top 30, but it’s clear that we have a growing list of elite relievers.

From a fantasy perspective, thanks to 45+ saves totals out of Holland and Kimbrel, we had two relievers ranked in the top 20 pitchers. If Chapman didn’t miss time and Betances and Davis consumed the closer role, we would have had 3 others. Last year, Craig Kimbrel and his 4 wins, 50 saves, 98 SO’s, 1.21 ERA and .88 WHIP campaign made him the 3rd most valuable pitcher. This year with Kershaw, Cueto, Felix and Kluber, it would have taken even more.

If we combined the 3 more dominating performances exclusive of saves this year: Aroldis Chapman’s K-rate (52.5%) and saves total (36), Dellin Betances IP (90) – who was dominating in his own right, Wade Davis’ ERA (1.00) and Wins total (9) and Sean Doolittle’s WHIP (.73) – let’s call this guy Aroldellin Dooldavis, we would wind up with a 10.95 z-sum…just above Corey Kluber (10.72), but under Clayton Kershaw (13.74), Johnny Cueto (12.95) and Felix Hernandez (12.50). Even 50 saves wouldn’t have done the trick (12.43 z-sum):

Name Age IP WHIP zWHIP ERA zERA W zW SO zSO SV zSV 5×5
Clayton Kershaw 26 198.1 0.86 4.23 1.77 3.53 21 3.38 239 2.95 0 -0.34 13.74
Johnny Cueto 28 243.2 0.96 3.91 2.25 3.22 20 3.16 242 3.01 0 -0.34 12.95
Felix Hernandez 28 236 0.92 4.29 2.14 3.37 15 2.06 248 3.12 0 -0.34 12.50
Aroldellin DoolDavis 25 90 0.73 2.50 1 2.25 9 0.74 177 1.77 50 5.17 12.43
Corey Kluber 28 235.2 1.09 2.14 2.44 2.69 18 2.72 269 3.52 0 -0.34 10.73
Adam Wainwright 32 227 1.03 2.79 2.38 2.72 20 3.16 179 1.80 0 -0.34 10.13
Jon Lester 30 219.2 1.1 1.88 2.46 2.46 16 2.28 220 2.59 0 -0.34 8.86
David Price 28 248.1 1.08 2.40 3.26 0.89 15 2.06 271 3.56 0 -0.34 8.56
Chris Sale 25 174 0.97 2.68 2.17 2.43 12 1.40 208 2.36 0 -0.34 8.52
Madison Bumgarner 24 217.1 1.09 1.97 2.98 1.35 18 2.72 219 2.57 0 -0.34 8.27
Zack Greinke 30 202.1 1.15 1.18 2.71 1.78 17 2.50 207 2.34 0 -0.34 7.46
Max Scherzer 29 220.1 1.18 0.94 3.19 0.93 18 2.72 252 3.20 0 -0.34 7.45
Jordan Zimmermann 28 199.2 1.07 2.02 2.66 1.85 14 1.84 182 1.86 0 -0.34 7.22
Julio Teheran 23 221 1.08 2.13 2.89 1.57 14 1.84 186 1.94 0 -0.34 7.13
Stephen Strasburg 25 215 1.12 1.61 3.14 1.01 14 1.84 242 3.01 0 -0.34 7.12
Garrett Richards 26 168.2 1.04 1.96 2.61 1.64 13 1.62 164 1.52 0 -0.34 6.39
Greg Holland 28 62.1 0.91 1.11 1.44 1.28 1 -1.02 90 0.10 46 4.73 6.21
Craig Kimbrel 26 61.2 0.91 1.09 1.61 1.16 0 -1.24 95 0.20 47 4.84 6.06

 


End of Season Bullpen Report: “Expected” Fantasy Rankings

Any day now, Zach Sanders (@zvsanders) will come out with his end-of-season FAVRz/Fantasy Rankings. Look out for them.

For this post, I will provide three sets of rankings using that same approach (summed up z-scores) for our end-of-season “Bullpen Report: Expected Fantasy Rankings”. The Bullpen Report team should follow up with role reports for each division in the coming weeks as well.

The first set of rankings you will find almost anywhere: on the fantasy sites that you use, via player-raters, etc. It’s the standard 5×5 fantasy value (Wins, ERA, WHIP, SO and Saves). The second grid will be for 6×6 leagues (addition of Holds). The last grid will be for 5×5 and 6×6 leagues, but instead of standard ERA and WHIP, we’ll look at rankings if you were to use expected ERA (via SIERA) and adjusted (adj)WHIP through BABIP differential: I will explain below.

1) 5×5 Rankings (Wins, ERA, WHIP, SO and Saves) – actual 5×5 value in column 4; expected 5×5 value in column 5:

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Bullpen Report: September 13, 2014

A’s at M’s: Sean Doolittle is back, looked sharp and earned his 21st save the season. Since his last save on August 23rd, there was one lonely save by Eric O’Flaherty. The A’s went 6 and 14 over that timeframe. It was a big win for the A’s who kept the Mariners one game back from their Wildcard lead thanks in part to Doolittle’s clean return (1 IP, 1K), but thanks more in part to a Fernando Rodney implosion (1 IP, 4 straight walks in the top of the 10th). To date, using 50 IP as the qualifier, Sean Doolittle owns the 3rd best K%-BB% rate in the history of baseball, 36.2%, thanks in part to the 20th best K% ever (38.6%) and the  26th best BB% ever (2.4%). Incredible. Enjoy his high fastball in a time where not many others have this lethal high fastball and hitters focus with their chins down.

Astros at Angels: Angels keep winning: their 10th straight behind two Trout homers. Lefty specialist and deep bullpen option Joe Thatcher was activated from the DL. Austin Powers has forever ruined his last name for me: Margaret Thatcher naked on a cold day….Margaret Thatcher naked on a cold day! Huston Street earned save 14 for the Angels (38 in total). He gave up 1 hit, struck out 1 and looks as though he’s fine after being sidelined with a hamstring injury. Noncloser note: Jered Weaver continues to deceive. I strolled across this while preparing a 2015 Mets Rotation post…Jered Weaver owns the 9th best zone-contact rate for starters this year, and despite diminishing velocity, hitters are relatively swinging at much less stuff in the zone against him (14th best SP rate) confirming his continued deception.

Rays at Blue Jays: Usually I’m pointing to just how dominating Brad Boxberger has been, but perhaps he needs a little break despite only pitching in 4 of the last 8 days. It’s 2 appearances in a row now he’s given up a homer. He earned his 2nd loss of the season yesterday. With less than a month left of the season, if you’re in a saves-only league mayyybe it’s worth dropping Boxberger since Jake McGee is still the (very effective) closer. Casey Janssen confirmed that he’s still the Blue Jays’ closer earning himself save #23.

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Bullpen Report: September 6th, 2014

First, the ?’s.

Second, the historical K%’s.

And of course, the Grid…

1) The ?’s

Angels at Twins: Glen Perkins has a sore neck (received a MRI after tingling, but there was no structural damage). Ron Gardy said he should be back within a few a days so I wouldn’t jump to the waiver wire for anyone. We didn’t get a chance to see who would have had the opportunity to close out the games for the Twins tonight. While it was presumably Jared Burton, he received the loss, getting beat by a Albert Pujols double after a single (Cron) and walk (Trout) and then Anthony Swarzak let in the inherited runner.  Huston Street earned save #37. That’s 3 straight appearances for Street and he could potentially use the day off tomorrow. He only has 2 k’s in through his last 5 appearances, and his win yesterday came from a blown save. He induced only 1 whiff from 6 swings tonight.

Astros at Athletics: Sean Doolittle had a successful bullpen session today and should be activated next week. Until then, it’s still Eric O’Flaherty closing out games. David Wiers called O’Flaherty a wild-card for the closing role prior to the season and the ground ball rate (58+%) and weak contact (.213 BABIP) holds true. Tonight, Luke Gregerson pitched a scoreless 9th for the win. Heck, if you’re own a hold league, why not own the entire Oakland bullpen next year?

Chad Qualls remains under the weather with a case of the shaky qualls. He let both of Scott Feldman’s inherited runners score and then gave up the winning single to blow a 3-1 lead in the bottom of the 9th. I would think and hope that Tony Sipp is next up  for the closing role. Other than a shellacking on 8/25 (4BB and 4 ER without recording an out), he’s been lights out since 8/12 (12 K’s, 0 BB’s and only 1 hit). Yesterday, he struck out 4 of 7 batters. I’d like to see him with the gig.

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