Russell A. Carleton's Avatar

Russell A. Carleton

@pizzacutter4

Baseball Prospectus (emeritus) | author of "The Shift: The Next Evolution in Baseball Thinking" and "The New Ballgame: The Not-So-Hidden Forces Shaping Modern Baseball" (Triumph) | Quad-A Sabermetrician | he/him

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08.11.2024
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Latest posts by Russell A. Carleton @pizzacutter4

ABS is going to kill catcher framing, but it's going to create a new class of catchers who are good at working the ABS system.

26.02.2026 20:57 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Many teams, especially this early in the spring, intentionally don't turn on the radar.

With a lot of pitchers, you don't want them at max effort right away. But guess what happens when you gather a bunch of hyper-competitive athletes who haven't seen each other in a few months? They "scoreboard."

25.02.2026 20:03 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

congrats to my @baseballprospectus.com colleagues @srbrown70.bsky.social, @depstein1983.bsky.social, @stevengoldman.bsky.social and RJ McDaniel, and all the other finalists on their nominations!

23.01.2026 16:52 ๐Ÿ‘ 12 ๐Ÿ” 7 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
SABR Analytics Conference logo

SABR Analytics Conference logo

Congrats to all the finalists for the 2026 SABR Analytics Conference Research Awards! sabr.org/latest/annou...

Voting for the winners begins next week. Thanks to @baseballprospectus.com, @fangraphs.com, @sportsinfosolutions.com, @ibwaa.bsky.social for their contributions to the selection process.

23.01.2026 15:51 ๐Ÿ‘ 22 ๐Ÿ” 17 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 13

So... Bichette.

16.01.2026 18:21 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I'm old enough to remember Goodtime 2!!!

05.01.2026 22:48 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

I command people to read it and all I saw was the Goodtime III reference. #LegendsOf216

05.01.2026 22:39 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Made it. Somehow.

01.01.2026 05:08 ๐Ÿ‘ 7 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

The Chicago Bears of Gary

18.12.2025 00:27 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I got you Craig. I was altar boy of the year at my parish when I was younger.

10.12.2025 17:59 ๐Ÿ‘ 2 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Jeff... Kent?

08.12.2025 05:14 ๐Ÿ‘ 15 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 1

So uh...

06.12.2025 23:42 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
A sign from the Atlanta Zoo advertising "Giraffe Feeding. $4 for two lettuce leaves"

A sign from the Atlanta Zoo advertising "Giraffe Feeding. $4 for two lettuce leaves"

Inflation is out of hand!

29.11.2025 18:19 ๐Ÿ‘ 11 ๐Ÿ” 2 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

Well this is awkward.

29.11.2025 18:04 ๐Ÿ‘ 6 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Today, I am grateful for...

28.11.2025 04:35 ๐Ÿ‘ 6 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

So it goes.

18.11.2025 18:47 ๐Ÿ‘ 5 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0
Seeking nominations for 2026 SABR Analytics Conference Research Awards โ€“ Society for American Baseball Research

Hey, SABR hasn't put both its feet into bluesky yet (I know, a lot of its people have) but this is a good time to remind you that the SABR Analytics Conference Research Awards are open for nominations.

When you have a few minutes, please nominate some of your favorite baseball research from 2025.

17.11.2025 19:54 ๐Ÿ‘ 35 ๐Ÿ” 24 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 2
Preview
Data Scientist Cleveland, Ohio, United States

The Cleveland Guardians are looking for talented Data Scientists to add to their R&D department. Apply here: job-boards.greenhouse.io/clevelandgua...
Fire questions my way if you want.

05.09.2025 13:37 ๐Ÿ‘ 8 ๐Ÿ” 8 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I also like that you are you.

28.08.2025 04:53 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Aww, thanks for taking two chances on me. Happy to have worked with Triumph.

07.08.2025 20:33 ๐Ÿ‘ 0 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

Move fences back.

07.08.2025 04:21 ๐Ÿ‘ 6 ๐Ÿ” 0 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0

I command you to watch this space. ;-)

07.08.2025 02:11 ๐Ÿ‘ 7 ๐Ÿ” 0 ๐Ÿ’ฌ 2 ๐Ÿ“Œ 0

I've talked this one through with @cdgoldstein.baseballprospectus.com and the BP editorial staff and they have graciously allowed me to remain an author emeritus. I will still contribute to the annual and website here and there but much less frequently.

And for that, I am very grateful.

07.08.2025 00:34 ๐Ÿ‘ 42 ๐Ÿ” 2 ๐Ÿ’ฌ 5 ๐Ÿ“Œ 0

Between the "Pizza Cutter" days posting at Baseball Fever and Statistically Speaking and then @baseballprospectus.com, it's been almost 20 years and I'm not as 25 as I used to be.

The grind of weekly work and having a "real job" and a "real family" just got to be too much.

That's the entire story.

07.08.2025 00:34 ๐Ÿ‘ 39 ๐Ÿ” 3 ๐Ÿ’ฌ 4 ๐Ÿ“Œ 0

Some personal news: After 15 occasionally interrupted years @baseballprospectus.com providing weekly #GoryMath, I am taking a step back.

No, I haven't been hired by a team or another outlet.
No, I'm not doing a Substack.
No, I'm not mad at BP. They're amazing.

Yes, I will still write occasionally.

07.08.2025 00:34 ๐Ÿ‘ 95 ๐Ÿ” 3 ๐Ÿ’ฌ 6 ๐Ÿ“Œ 3

She said something about heading to San Diego.

01.08.2025 01:32 ๐Ÿ‘ 1 ๐Ÿ” 0 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

My wife just hugged me. #HugWatch

31.07.2025 21:56 ๐Ÿ‘ 4 ๐Ÿ” 1 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0

As always, my sources tell me "Dude, we're a little busy today. Can't really talk."

They tell me that when it's not the trade deadline too.

31.07.2025 18:13 ๐Ÿ‘ 36 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 1
Preview
So Youโ€™ve Decided To Change Some Rules | Baseball Prospectus An analysis of how likely MLB is to edit its rulebook, and what the effects might be.

Shameless self-promotion: Let's talk about actual rule changes that might just happen in the near future.

@baseballprospectus.com

www.baseballprospectus.com/news/article...

30.07.2025 19:50 ๐Ÿ‘ 3 ๐Ÿ” 2 ๐Ÿ’ฌ 1 ๐Ÿ“Œ 0
Preview
The Guardian Angels of Rationality | Baseball Prospectus What the Angels did with the waiver wire in August has been analyzed again and again, but they were just one side of that equation.

From the archives: For some reason, this seems relevant.

www.baseballprospectus.com/news/article...

30.07.2025 19:35 ๐Ÿ‘ 2 ๐Ÿ” 1 ๐Ÿ’ฌ 0 ๐Ÿ“Œ 0