Jay Jaffe
@jayjaffe.bsky.social
Senior writer at @FanGraphs.com, formerly SI.com and Baseball Prospectus, creator of JAWS, author of The Cooperstown Casebook (2017). Not sticking to sports or paying $8.
Massive upgrade
SNY has announced the hiring of former WaPo baseball writer Chelsea Janes as their new MLB Insider. Excellent hire and exciting news for Mets fans.
February 13, 2026 at 12:14 AM
Massive upgrade
Four years with the Phillies, four midseason appearances on the Replacement Level Killers list. Can't believe he didn't get a shot to go 5-for-5.
Philadelphia Phillies released RF Nick Castellanos.
February 12, 2026 at 8:26 PM
Four years with the Phillies, four midseason appearances on the Replacement Level Killers list. Can't believe he didn't get a shot to go 5-for-5.
new @fangraphs.com: rounding up a few one-year deals of note, including two related to the 2023 World Series-winning Rangers.
Finding Homes: Free Agents Jordan Montgomery, Aaron Civale, Jonah Heim blogs.fangraphs.com/finding-home...
Finding Homes: Free Agents Jordan Montgomery, Aaron Civale, Jonah Heim
As camps open, three more established players have new addresses.
blogs.fangraphs.com
February 12, 2026 at 7:44 PM
new @fangraphs.com: rounding up a few one-year deals of note, including two related to the 2023 World Series-winning Rangers.
Roseanne Barr, Apollo astronaut James Irwin, senator/Shuttle astronaut Jake Garn, and baseball's Herman Franks, who played a key role in the 1951 Giants' sign-steaing and later as Cubs manager deployed Bruce Sutter exclusively in close leads, more or less creating the modern closer role.
Who's the most famous alum of your high school?
I'll go first: David Draiman of Disturbed
I'll go first: David Draiman of Disturbed
guys i just found out i went to the same high school as howard lutnick. please respect my privacy at this time.
February 12, 2026 at 3:59 PM
Roseanne Barr, Apollo astronaut James Irwin, senator/Shuttle astronaut Jake Garn, and baseball's Herman Franks, who played a key role in the 1951 Giants' sign-steaing and later as Cubs manager deployed Bruce Sutter exclusively in close leads, more or less creating the modern closer role.
Reposted by Jay Jaffe
Here’s a periodic reminder that MLB is full of shit. There aren’t rich teams and poor teams … just rich owners who spend on their teams and rich owners who don’t. And the latter will do anything they can to distract you from this fundamental truth.
What would MLB look like with a salary cap? Explaining the wide-ranging, game-changing effects
From free agency to guaranteed contracts to franchise values, a salary cap would completely remake the MLB landscape.
www.nytimes.com
February 12, 2026 at 3:30 PM
Here’s a periodic reminder that MLB is full of shit. There aren’t rich teams and poor teams … just rich owners who spend on their teams and rich owners who don’t. And the latter will do anything they can to distract you from this fundamental truth.
your hourly reminder that the IOC sucks shit.
Hard to describe the depth of outrage and feeling this story has generated across in Ukraine - remarkable and sad.
www.nytimes.com/2026/02/12/w...
www.nytimes.com/2026/02/12/w...
Ukrainian Olympian Is Disqualified Over Helmet With Images of War Dead
www.nytimes.com
February 12, 2026 at 3:50 PM
your hourly reminder that the IOC sucks shit.
“I am languid & bedeviled & hate writing & hate everybody” — me when it takes me longer that 2 minutes to come up with a good lede
www.instagram.com/p/DUp7dHWiDx...
www.instagram.com/p/DUp7dHWiDx...
lettersofnote on Instagram: "Happy Birthday to the most relatable of all the grumps, Charles Darwin!View all 27 comments"
Happy Birthday to the most relatable of all the grumps, Charles Darwin!
www.instagram.com
February 12, 2026 at 1:31 PM
“I am languid & bedeviled & hate writing & hate everybody” — me when it takes me longer that 2 minutes to come up with a good lede
www.instagram.com/p/DUp7dHWiDx...
www.instagram.com/p/DUp7dHWiDx...
Somehow I missed this jam while writing my tribute to the late Mickey Lolich
Today at Jagged Time Lapse: Flashing back on the late, great Mickey Lolich and the 1968 funk jam that bears his name.
danepstein.substack.com/p/from-sixty...
danepstein.substack.com/p/from-sixty...
From Sixty Feet Out On That Hill
The Fans — "Roly Poly Mickey Lolich" (1968)
danepstein.substack.com
February 12, 2026 at 1:11 PM
Somehow I missed this jam while writing my tribute to the late Mickey Lolich
Reposted by Jay Jaffe
New @fangraphs.com: yet another big move for the Tigers rotation, this one bringing home a future Hall of Famer
Justin Time: Verlander Rejoins Tigers as Camp Opens blogs.fangraphs.com/justin-time-...
Justin Time: Verlander Rejoins Tigers as Camp Opens
The Hall of Fame-bound righty’s return headlines a few moves of note for Detroit.
blogs.fangraphs.com
February 11, 2026 at 7:20 PM
New @fangraphs.com: yet another big move for the Tigers rotation, this one bringing home a future Hall of Famer
really hope he's referring to Chinese dissident artist Ai Weiwei
February 11, 2026 at 8:48 PM
really hope he's referring to Chinese dissident artist Ai Weiwei
Absolute fucking cowardice. Not surprising because they went last year but JFC read the fucking room
Free for all readers: the Dodgers say they will visit Trump in the White House to celebrate their World Series championship. This is a cowardly decision that is wrong on every level, and a stab in the back to the city of Los Angeles. Essay under video:
mollyknight.substack.com/p/no-the-dod...
mollyknight.substack.com/p/no-the-dod...
No, the Dodgers should absolutely not go to the White House
A recording from Molly Knight and Mike Madrid's live video
mollyknight.substack.com
February 11, 2026 at 8:09 PM
Absolute fucking cowardice. Not surprising because they went last year but JFC read the fucking room
Gallup off into the sunset, you fucking cowards
Gallup will no longer measure presidential approval after 88 years thehill.com/homenews/med...
February 11, 2026 at 7:38 PM
Gallup off into the sunset, you fucking cowards
New @fangraphs.com: yet another big move for the Tigers rotation, this one bringing home a future Hall of Famer
Justin Time: Verlander Rejoins Tigers as Camp Opens blogs.fangraphs.com/justin-time-...
Justin Time: Verlander Rejoins Tigers as Camp Opens
The Hall of Fame-bound righty’s return headlines a few moves of note for Detroit.
blogs.fangraphs.com
February 11, 2026 at 7:20 PM
New @fangraphs.com: yet another big move for the Tigers rotation, this one bringing home a future Hall of Famer
we'll build your catapult but guess who's first in that ride, Nazi funboy motherfucker?
Elon Musk told employees at xAI, his artificial intelligence company, on Tuesday that the company needed a factory on the moon to build A.I. satellites and a massive catapult to launch them into space.
Elon Musk Wants to Build an A.I. Satellite Factory on the Moon
In a meeting with employees at his company xAI, Mr. Musk revealed a vision for a facility that includes a giant catapult to launch his satellites into space.
nyti.ms
February 11, 2026 at 4:06 PM
we'll build your catapult but guess who's first in that ride, Nazi funboy motherfucker?
Reposted by Jay Jaffe
“Who is buying ‘Melania’ tickets?”
February 10, 2026 at 10:47 PM
“Who is buying ‘Melania’ tickets?”
Reposted by Jay Jaffe
This was well done by @jacobfeldman.bsky.social (it's very helpful.
But also.... maybe leagues and networks shouldn't make this so confusing to the point where a full 16-box flow chart is required to figure out how to watch baseball.
But also.... maybe leagues and networks shouldn't make this so confusing to the point where a full 16-box flow chart is required to figure out how to watch baseball.
February 10, 2026 at 9:47 PM
This was well done by @jacobfeldman.bsky.social (it's very helpful.
But also.... maybe leagues and networks shouldn't make this so confusing to the point where a full 16-box flow chart is required to figure out how to watch baseball.
But also.... maybe leagues and networks shouldn't make this so confusing to the point where a full 16-box flow chart is required to figure out how to watch baseball.
14/10 for being a real one.
February 10, 2026 at 8:28 PM
14/10 for being a real one.
transcript now available for those of you into things of that nature.
Chatting at 12 pm ET! Pitchers, catchers, things of that nature.
Jay Jaffe FanGraphs Chat – 2/10/26 blogs.fangraphs.com/jay-jaffe-fa...
February 10, 2026 at 6:55 PM
transcript now available for those of you into things of that nature.
Chatting at 12 pm ET! Pitchers, catchers, things of that nature.
February 10, 2026 at 4:35 PM
Chatting at 12 pm ET! Pitchers, catchers, things of that nature.
@baumann.bsky.social biting into the big questions.
"Eat up, kid, there are hungry players in the Pecos League.”
"Eat up, kid, there are hungry players in the Pecos League.”
How Much Free Food Can a Player Consume Under the CBA? blogs.fangraphs.com/how-much-fre...
How Much Free Food Can a Player Consume Under the CBA?
Eat up, kid, there are hungry players in the Pecos League.
blogs.fangraphs.com
February 10, 2026 at 4:13 PM
@baumann.bsky.social biting into the big questions.
"Eat up, kid, there are hungry players in the Pecos League.”
"Eat up, kid, there are hungry players in the Pecos League.”
Reposted by Jay Jaffe
the investigation
February 10, 2026 at 3:11 PM
the investigation
some very interesting stuff about the way gaps in minor league data make projecting some teams (especially small-market teams that deploy more young players, with shorter track records) harder than doing so for others.
The current gray market trade in minor league player statistics for certain levels is one of the subjects discussed.
It is long past time for MLB to crack down, standardize, and publicize this data itself, so analysts aren’t caught between following the rules and doing their best work.
It is long past time for MLB to crack down, standardize, and publicize this data itself, so analysts aren’t caught between following the rules and doing their best work.
to start us off on PECOTA Week, @bachlaw.bsky.social wrote about if/how the model has been updated and what would actually be a major impact in the future, if it becomes available:
February 10, 2026 at 3:31 PM
some very interesting stuff about the way gaps in minor league data make projecting some teams (especially small-market teams that deploy more young players, with shorter track records) harder than doing so for others.
Reposted by Jay Jaffe
new @fangraphs.com: I was swamped by Hall of Fame stuff when Wilbur Wood passed away a few weeks ago but last weeks' death of Mickey Lolich provided an opening to put the careers of both rubber-armed lefties — one a power pitcher, the other a knuckleballer — into perspective.
The 300: A Tribute to the Ultra-Durable Mickey Lolich and Wilbur Wood blogs.fangraphs.com/the-300-a-tr...
The 300: A Tribute to the Ultra-Durable Mickey Lolich and Wilbur Wood
The two late lefties piled up unfathomable innings totals while starring in the American League in the 1970s.
blogs.fangraphs.com
February 9, 2026 at 5:57 PM
new @fangraphs.com: I was swamped by Hall of Fame stuff when Wilbur Wood passed away a few weeks ago but last weeks' death of Mickey Lolich provided an opening to put the careers of both rubber-armed lefties — one a power pitcher, the other a knuckleballer — into perspective.
Jesus, Krist
dude completely sucks
February 10, 2026 at 12:58 AM
Jesus, Krist
Congrats to all at @baseballprospectus.com and @baseballamerica.com for their hard work. It’s a damn good mail day when these books show up!
February 9, 2026 at 11:08 PM
Congrats to all at @baseballprospectus.com and @baseballamerica.com for their hard work. It’s a damn good mail day when these books show up!