• Roto Riteup
    The most roto-relevant news of the previous day, recapped in a concise format for your morning coffee.
  • Bullpen Report
    Detailed daily updates and charts on every bullpen in the Major Leagues to help you manage your saves and holds.
  • Prospect Coverage
    Our prospect team mines the minors for top prospects and useful pieces alike.
  • MASH Report
    Award-winning in-depth injury report with analysis from Jeff Zimmerman.
  • The Sleeper and The Bust Podcast
    Paul Sporer, Justin Mason, and Jason Collette lead the RotoGraphs staff in a regular fantasy podcast.
  • Daily Fantasy Strategy
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  • Top 50 Fantasy Prospects
    Marc Hulet adjusts (and updates) his prospect list for fantasy purposes.
  • Field of Streams
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C  -  1B  -  2B  -  SS  -  3B  -  OF  -  SP  -  RP

Bullpen Report: April 30, 2021

NEW FEATURE ALERT! We have added an upgraded version of RosterResource’s Closer Depth Chart to FanGraphs. Read more about it here.

We will always include a link to the full Closer Depth Chart at the bottom of the Bullpen Report each day. It’s also accessible from the RosterResource drop-down menu and from any RosterResource page. Please let us know what you think.

The 2021 version of Bullpen Report includes five different sections, as well as the closer chart, which can be found at the bottom of the page.

  1. Notable Workloads: Primary closers or valuable members of a closer committee who have been deemed unavailable or likely unavailable for the current day due to recent workload.
  2. Injury News 
  3. Outlier Saves: Explanation for a non-closer earning a save during the previous day.
  4. Committee Clarity: Notes on a closer committee that clarify a pitcher’s standing in the group.
  5. Losing A Grip: Struggling closers who could be on the hot seat.

The “RosterResource” link will take you to the corresponding team’s RosterResource depth chart, which will give you a better picture of the full bullpen and results of the previous six days (pitch count, save, hold, win, loss, blown save.)
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The Sleeper and the Bust Episode: 922 – Vlad Surging, Jazz Halted, and Franco’s Placement

4/29/21

The latest episode of “The Sleeper and the Bust” is live. Support the show by subscribing to our Patreon!!

Follow us on Twitter

NOTABLE TRANSACTIONS/INJURIES/RUMORS

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Painting the Strike Zone: A Blurry Beginning

A while back, I investigated how a varied pitch mix helps produce weak contact. At the time, I wondered if varying pitch location would be a benefit for the pitcher. After a first stab at the data, the answer is somewhere between no and just not known.

The theory goes that a hitter would have a tough time squaring up a ball as it gets located in different parts of the strike zone. The results could even be more swing-and-miss. With this focus, I just dove in to see what stuck.

The first hurdle was finding a way to measure pitch location variation. I ended up using nine zones with nearly the same number of pitches in each zone. Deciding on just nine zone drives the rest of the results. Should there be more? Fewer? Some removed? If/when I reexamine the data, I’ll start here with some adjustments.
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Young Openers or Middle Relievers?

There have been some really exciting starts from young pitchers so far this season. On Sunday, Michael Kopech pitched five innings, faced 18 batters, and struck out 10 of them. When I saw that he was starting in place of Lucas Giolito on Sunday morning, I totally rolled the dice and got lucky. Adding a young pitcher who I’ve been rooting for over the past few years and it paying off was great. But, I’ll admit, it made me feel a little empty inside.

As I stared at the tv and excitedly encouraged whiff after whiff I slowly began to realize that a win wasn’t going to be possible. I knew Kopech would be on a pitch count and I knew he wasn’t going to suddenly become a rotation mainstay, but I went for it anyway, dropping a set-up reliever in order to gain some strikeouts. I felt oh-so-sad when Tony La Russa effectively looked into the camera and told me not to get used to it. Monday morning had me reflecting, was it worth it? Which is better to roster, low-pitch count starters like Kopech or middle/set-up relievers?

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Bullpen Report: April 29, 2021

NEW FEATURE ALERT! We have added an upgraded version of RosterResource’s Closer Depth Chart to FanGraphs. Read more about it here.

We will always include a link to the full Closer Depth Chart at the bottom of the Bullpen Report each day. It’s also accessible from the RosterResource drop-down menu and from any RosterResource page. Please let us know what you think.

The 2021 version of Bullpen Report includes five different sections, as well as the closer chart, which can be found at the bottom of the page.

  1. Notable Workloads: Primary closers or valuable members of a closer committee who have been deemed unavailable or likely unavailable for the current day due to recent workload.
  2. Injury News 
  3. Outlier Saves: Explanation for a non-closer earning a save during the previous day.
  4. Committee Clarity: Notes on a closer committee that clarify a pitcher’s standing in the group.
  5. Losing A Grip: Struggling closers who could be on the hot seat.

The “RosterResource” link will take you to the corresponding team’s RosterResource depth chart, which will give you a better picture of the full bullpen and results of the previous six days (pitch count, save, hold, win, loss, blown save.)
Read the rest of this entry »


Paul Sporer’s Chat – April 28th, 2021

Transcript is live!

3:34

Paul Sporer: Gotta keep it to about 30 min today so let’s roll!!

3:34

confused fantasy player: Is it time to sell low on Kyle Hendricks?

3:34

Paul Sporer: It’s 2 great and 2 bad starts, I’m not selling

3:34

aaron boone demoted to AAA: where do you get your ideas from?

3:36

Paul Sporer: To write about? All sorts of different places. Just persuing leaderboards, watching games, seeing some stat on Quick Pitch that spurs me to look deeper… just consumption of baseball stuff in general. I keep a notes app file of ideas that pop into my head randomly. Sometimes, though, I stare at a blank Word doc for an hour-plus

3:36

Glad Vlad is on my team: Are you a believer in Civale?

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Shapeshifters: Sliders

It seems we spend most Aprils ballyhooing about what should and shouldn’t be believed, what can and cannot be discussed. Some valid, some not. What I believe can sometimes get lost in early season analysis – or missed completely – is what the data (whether in April or September) can tell us beyond the numbers and beyond the sample.

Intent.

Good or bad, change or no change, we can find intent within data, regardless of sample size. Because, simply speaking, professional baseball is played by humans who are trying to be good at baseball. And like most humans, they will attempt to do more of what gets them a reward (being good at baseball) and less of what gets them a punishment (being bad at baseball).

If you start from there and work backward, intent can help you with analysis when the sample size is lacking. This can be more telling in regards to pitchers, at least early in the season, as they are the first-mover in baseball’s 1-on-1 battles, chooser of their path on every pitch.

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Bullpen Report: April 28, 2021

  1. Notable Workloads: Primary closers or valuable members of a closer committee who have been deemed unavailable or likely unavailable for the current day due to recent workload.
  2. Injury News
  3. Outlier Saves: Explanation for a non-closer earning a save during the previous day.
  4. Committee Clarity: Notes on a closer committee that clarify a pitcher’s standing in the group.
  5. Losing A Grip: Struggling closers who could be on the hot seat.

The “RosterResource” link will take you to the corresponding team’s RosterResource depth chart, which will give you a better picture of the full bullpen and results of the previous six days (pitch count, save, hold, win, loss, blown save).
Read the rest of this entry »


Roto Riteup: April 28, 2021

Me skirting responsibilities:

 

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The Sleeper and the Bust Episode: 921 – Time to Worry About These Yankees?

4/27/21

The latest episode of “The Sleeper and the Bust” is live. Support the show by subscribing to our Patreon!!

Follow us on Twitter

NOTABLE TRANSACTIONS/INJURIES/RUMORS

Read the rest of this entry »