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Michael Rosen

@michaelrosen.bsky.social

fangraphs blogger

4,679 Followers  |  287 Following  |  767 Posts  |  Joined: 03.07.2023
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Posts by Michael Rosen (@michaelrosen.bsky.social)

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02.03.2026 20:56 — 👍 41    🔁 7    💬 2    📌 1
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another one: yaramil hiraldo, who ran a 40% swinging strike rate on his changeup last year. 40%!!!

02.03.2026 19:13 — 👍 5    🔁 1    💬 1    📌 0
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for example: nate garkow, who is throwing changeups with 20 inches of iVB

02.03.2026 18:26 — 👍 0    🔁 0    💬 0    📌 0
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Here Are Some Fun New Pitches From the Early Spring Fifteen guys to keep an eye on in Arizona and Florida.

there is so much baseball happening these days — who will find all the weird pitching stuff? it's me. i will find the weird pitching stuff for @fangraphs.com:

02.03.2026 18:25 — 👍 10    🔁 4    💬 2    📌 2

no swing data this spring : (

02.03.2026 16:21 — 👍 0    🔁 0    💬 1    📌 0

😩😩😩😩😩😩

01.03.2026 21:23 — 👍 1    🔁 0    💬 0    📌 0

not only are the shapes excellent, the delivery is so smooth and controlled, the 4.5% walk rate last year doesn't look like a fluke

01.03.2026 21:20 — 👍 2    🔁 0    💬 0    📌 0

oh my god ryan sloan looks ridiculous

01.03.2026 21:06 — 👍 12    🔁 0    💬 2    📌 0
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cutter shape today is back to what it looked in 2024. there may have been some calibration issues in the first start

01.03.2026 20:25 — 👍 2    🔁 0    💬 0    📌 0

thank you!!

28.02.2026 21:59 — 👍 0    🔁 0    💬 0    📌 0

hiraldo propaganda coming soon to a blog post near you

28.02.2026 21:59 — 👍 4    🔁 0    💬 1    📌 0

hell yeah

28.02.2026 21:42 — 👍 33    🔁 3    💬 3    📌 0

yaramil hiraldo

28.02.2026 19:31 — 👍 3    🔁 0    💬 2    📌 0

it's just a pretty rare (maybe unprecedented) combo of K% and GB%

26.02.2026 20:08 — 👍 1    🔁 0    💬 0    📌 0

i think it's probably grading out a bit better than it should bc of the arm angle estimate, but yea if he can add a tick of velo and an inch of carry it's going to be a plus pitch

26.02.2026 20:02 — 👍 0    🔁 0    💬 0    📌 0
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top 15 SP

26.02.2026 19:38 — 👍 16    🔁 1    💬 3    📌 2
Post image 26.02.2026 00:48 — 👍 1    🔁 0    💬 0    📌 0
https://www.nytimes.com/athletic/7069413/2026/02/24/paul-skenes-world-baseball-classic-pirates/

https://www.nytimes.com/athletic/7069413/2026/02/24/paul-skenes-world-baseball-classic-pirates/

surprised this quote he gave yesterday didn't get much attention...

26.02.2026 00:23 — 👍 1    🔁 0    💬 1    📌 1

i emailed MLB so we'll see if they're willing to share some further specifics

25.02.2026 22:13 — 👍 1    🔁 0    💬 0    📌 0
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realized today ken rosenthal/jayson stark reported this in may of last year

www.nytimes.com/athletic/636...

25.02.2026 22:01 — 👍 2    🔁 0    💬 1    📌 0
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Leonardo DiCaprio quietly funds a tiny library in the middle of LA A branch of the city library was built on the grounds of the actor's childhood home.

as this is my neighborhood library, i'd like to take issue with the assertion that it is "tiny." it is decidedly medium-sized

25.02.2026 19:58 — 👍 4    🔁 0    💬 0    📌 0

ya that's fair, probably it wouldn't be worth the confusion of the different zones, but the pro case (as i see it) is less about giving the ump the benefit of the doubt and more to ward off concerns that the system is being precise to an unreasonable degree

25.02.2026 00:24 — 👍 0    🔁 0    💬 0    📌 0

i'm thinking sky's fuzzy zone idea would actually be good PR vs pretending ABS is operating with unbelievable levels of precision

24.02.2026 22:38 — 👍 2    🔁 0    💬 1    📌 0

it's been reported around 4mm for tennis calls, don't think i've ever seen a publicly reported value for pitches

24.02.2026 22:12 — 👍 0    🔁 0    💬 0    📌 1

i'd be fine with deferring to the original call if it's within hawkeye's margin of error

24.02.2026 21:57 — 👍 25    🔁 1    💬 1    📌 1

do they have anyone else that can play shortstop lol

24.02.2026 18:47 — 👍 0    🔁 0    💬 1    📌 0
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and is that... a splinker? one-seam sinker??

23.02.2026 23:25 — 👍 7    🔁 0    💬 0    📌 0
MLB & MiLB Pitch Plots - TJStats This App Generates my famous MLB and MiLB Pitching Summaries for any pitcher with Statcast data. You can define a date range as well as picking a specific game for each player. You can also view each ...

plot is courtesy of @tjstats.ca's pitch plot app, an invaluable resource every spring

23.02.2026 23:13 — 👍 2    🔁 0    💬 0    📌 0
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BATx is projecting drew anderson for a 31.5% K rate... he showed some pretty nasty secondaries today, fastball up nearly three ticks since his last MLB stint

23.02.2026 23:12 — 👍 8    🔁 2    💬 1    📌 1

gotta love vesia screaming like a maniac after a strikeout on february 23

23.02.2026 21:20 — 👍 9    🔁 0    💬 1    📌 0