Pinned
Michael Rosen
@michaelrosen.bsky.social
· Feb 21
Aiming a Pitch Changes How It Moves
Reconsidering the stuff/location dichotomy.
blogs.fangraphs.com
if where a pitch is aimed changes how it moves, can stuff and location truly be separated? i wrote about it for @fangraphs.com
i'm sure someone else has pointed this out but it's pretty funny how bad LLM's are at chess given the early history of computers and all that
November 20, 2025 at 6:47 PM
i'm sure someone else has pointed this out but it's pretty funny how bad LLM's are at chess given the early history of computers and all that
so is mlb big inning dead
November 19, 2025 at 8:53 PM
so is mlb big inning dead
CROWDSOURCE Q: looking for something like RE24 but for probability of scoring at least 1 run, at least 2 runs, etc. for each base-out state. thanks
November 18, 2025 at 5:49 PM
CROWDSOURCE Q: looking for something like RE24 but for probability of scoring at least 1 run, at least 2 runs, etc. for each base-out state. thanks
ZIPS thinks konnor griffin is the pirates' best position player :O
2026 ZiPS Projections: Pittsburgh Pirates
The Pirates have talent, but they rarely get enough financial support to seriously contend.
blogs.fangraphs.com
November 18, 2025 at 5:09 PM
ZIPS thinks konnor griffin is the pirates' best position player :O
i'm back on the blog
Josh Naylor Reunites With Seattle on a Five-Year Deal blogs.fangraphs.com/josh-naylor-...
Josh Naylor Reunites With Seattle on a Five-Year Deal
The Mariners bring back a fan favorite.
blogs.fangraphs.com
November 17, 2025 at 8:14 PM
i'm back on the blog
can someone please sign a contract
November 16, 2025 at 5:37 PM
can someone please sign a contract
apropos of basically nothing... between braden nett, jamie arnold, and gage jump, the a's have a really compelling collection of upper-level SP prospects, feels like they are shaping up to be competitive in AL west by end of 2026 at latest
November 15, 2025 at 7:56 PM
apropos of basically nothing... between braden nett, jamie arnold, and gage jump, the a's have a really compelling collection of upper-level SP prospects, feels like they are shaping up to be competitive in AL west by end of 2026 at latest
since when is otañez on waivers
November 5, 2025 at 8:13 PM
since when is otañez on waivers
great post, tennis deserves the same public data revolution as baseball, it's infuriating how much good shit ATP/WTA just keeps locked up
Tennis deserves better than these worthless metrics: defector.com/tennis-deser...
Tennis Deserves Better Than These Worthless Metrics | Defector
Recently, I have been watching a lot of tennis, and thus trying to learn about tennis. This, as it turns out, is very difficult, because tennis is not a sport that wants to teach you about itself. If…
defector.com
November 5, 2025 at 3:30 PM
great post, tennis deserves the same public data revolution as baseball, it's infuriating how much good shit ATP/WTA just keeps locked up
Reposted by Michael Rosen
THE ARSENAL METRICS ARE LIVE ON LEADERBOARDS AND PLAYER PAGES!
plus, we've made some accompanying updates to StuffPro and PitchPro. Thread with details -->
plus, we've made some accompanying updates to StuffPro and PitchPro. Thread with details -->
October 31, 2025 at 3:17 PM
THE ARSENAL METRICS ARE LIVE ON LEADERBOARDS AND PLAYER PAGES!
plus, we've made some accompanying updates to StuffPro and PitchPro. Thread with details -->
plus, we've made some accompanying updates to StuffPro and PitchPro. Thread with details -->
hell of a year. go m's
October 21, 2025 at 3:09 AM
hell of a year. go m's
Reposted by Michael Rosen
Los Angeles is a spiritually better city more favored by god.
It is so weird how building the most expensive, most talented, odds on favorite team led the Dodgers to the World Series in 5 of the last 9 years. In that time Yankees ownership, management, and their beat reporters have told us it's all a crapshoot and anyone who makes the playoffs has a chance.
October 18, 2025 at 4:07 AM
Los Angeles is a spiritually better city more favored by god.
give us the exit velo cowards
October 17, 2025 at 11:23 PM
give us the exit velo cowards
so when did addison barger become fernando tatis jr
October 17, 2025 at 2:54 AM
so when did addison barger become fernando tatis jr
hey dan remembered it's the playoffs
October 17, 2025 at 1:20 AM
hey dan remembered it's the playoffs
just give naylor $100 million right now
October 17, 2025 at 1:02 AM
just give naylor $100 million right now
would love for smoltz to say, just once, "wow i really hate this mound visit"
October 16, 2025 at 12:52 AM
would love for smoltz to say, just once, "wow i really hate this mound visit"
did the game story last night
Yoshinobu Yamamoto One-Ups Blake Snell, Dodgers Coast To 2-0 NLCS Lead blogs.fangraphs.com/yoshinobu-ya...
Yoshinobu Yamamoto One-Ups Blake Snell, Dodgers Coast To 2-0 NLCS Lead
Who needs a bullpen?
blogs.fangraphs.com
October 15, 2025 at 6:10 PM
did the game story last night
another interesting adjustment — yamamoto hasn't thrown a first-pitch four seamer since the leadoff HR
Looks like the plan against Yamamoto was to be aggressive early. He definitely countered in that second inning and got hitters more where he wanted them by going strike-to-ball early in counts.
@cyrthogg.bsky.social Why are we not taking pitches right now? We are usually patient and we know the Dodgers bullpen is bad if we can get there
October 15, 2025 at 1:11 AM
another interesting adjustment — yamamoto hasn't thrown a first-pitch four seamer since the leadoff HR
as @sammillerbb.bsky.social wrote recently, it's gotta be a matter of time before pitchers stop defaulting to fastball on the first pitch of the game
October 15, 2025 at 12:21 AM
as @sammillerbb.bsky.social wrote recently, it's gotta be a matter of time before pitchers stop defaulting to fastball on the first pitch of the game
frankly, i love baseball
October 11, 2025 at 5:43 AM
frankly, i love baseball
catchers are amazing
October 11, 2025 at 1:09 AM
catchers are amazing