vivii ૮₍ ˶ᵔ ᵕ ᵔ˶₎ა ♡
@sunshinevvn.bsky.social
let’s go red sox 👏👏 👏👏👏
@lephysichien.bsky.social degrom changeup, very stable
November 7, 2025 at 11:50 PM
@lephysichien.bsky.social degrom changeup, very stable
i made a website for my new fielding win probability stat, with a leaderboard & individual play breakdowns :)
situational-fielding.streamlit.app
situational-fielding.streamlit.app
June 13, 2025 at 2:16 AM
i made a website for my new fielding win probability stat, with a leaderboard & individual play breakdowns :)
situational-fielding.streamlit.app
situational-fielding.streamlit.app
had to delete a tongue-in-cheek devin williams hate post cause it reached 1000 likes.
critical support to the only screwballer in the league even if he refuses to recognize that he is
critical support to the only screwballer in the league even if he refuses to recognize that he is
April 20, 2025 at 11:39 PM
had to delete a tongue-in-cheek devin williams hate post cause it reached 1000 likes.
critical support to the only screwballer in the league even if he refuses to recognize that he is
critical support to the only screwballer in the league even if he refuses to recognize that he is
we should have a double first base but not with all of those weird college rules, just treat it as one big base
April 20, 2025 at 11:35 PM
we should have a double first base but not with all of those weird college rules, just treat it as one big base
my simulations agree that jazz’s sweet spot is shifted down, but nothing crazy!
March 30, 2025 at 12:55 AM
my simulations agree that jazz’s sweet spot is shifted down, but nothing crazy!
we’re so back
February 23, 2025 at 8:18 PM
we’re so back
oh no, more correct calls. can’t let that happen
If and when robo umps arrive in MLB, the strike-zone box you've seen on TV for almost a quarter century — K-Zone, as it's called on ESPN — might disappear.
Why? Cheating is one of the league's concerns.
www.nytimes.com/athletic/614...
Why? Cheating is one of the league's concerns.
www.nytimes.com/athletic/614...
The robo ump could cause a unexpected casualty: the TV strike zone box
MLB is weighing options to dramatically reduce or remove the ubiquitous broadcast strike zone box as part of bringing the robo ump online.
www.nytimes.com
February 19, 2025 at 7:41 PM
oh no, more correct calls. can’t let that happen
my quick and dirty averaging of 6 projections together and testing out different fielding alignments says that the red sox gain a more than a win by putting bregman at 2nd, campbell in left, and pushing ceddanne to the bench, compared to any alignment that keeps ceddanne in the lineup
February 13, 2025 at 9:31 PM
my quick and dirty averaging of 6 projections together and testing out different fielding alignments says that the red sox gain a more than a win by putting bregman at 2nd, campbell in left, and pushing ceddanne to the bench, compared to any alignment that keeps ceddanne in the lineup
something interesting is that minimum in the energy.
for any speed of the sweet spot, the pivot which generates that speed & minimizes the kinetic energy will always be the same spot.
I did the lagrange multipliers, it’s always a distance I_com/(m(x_swsp-x_com)) below the centre of mass
for any speed of the sweet spot, the pivot which generates that speed & minimizes the kinetic energy will always be the same spot.
I did the lagrange multipliers, it’s always a distance I_com/(m(x_swsp-x_com)) below the centre of mass
when you compare swings with the same statcast bat speed, the bat actually has less energy when it’s rotating about a higher pivot, but still generating higher EVs nevertheless.
we’re still only talking about ~0.5 mph of EV for reasonable shifts in pivot point though, maybe 1 mph if ur lucky.
we’re still only talking about ~0.5 mph of EV for reasonable shifts in pivot point though, maybe 1 mph if ur lucky.
January 31, 2025 at 3:11 AM
something interesting is that minimum in the energy.
for any speed of the sweet spot, the pivot which generates that speed & minimizes the kinetic energy will always be the same spot.
I did the lagrange multipliers, it’s always a distance I_com/(m(x_swsp-x_com)) below the centre of mass
for any speed of the sweet spot, the pivot which generates that speed & minimizes the kinetic energy will always be the same spot.
I did the lagrange multipliers, it’s always a distance I_com/(m(x_swsp-x_com)) below the centre of mass
more neat bat-ball collision stuff
if two swings have the same reported bat speed on baseball savant, but one has a higher pivot point to its rotation, that one will generate higher max EVs (and it'll do so slightly farther up the barrel)
if two swings have the same reported bat speed on baseball savant, but one has a higher pivot point to its rotation, that one will generate higher max EVs (and it'll do so slightly farther up the barrel)
January 31, 2025 at 3:05 AM
more neat bat-ball collision stuff
if two swings have the same reported bat speed on baseball savant, but one has a higher pivot point to its rotation, that one will generate higher max EVs (and it'll do so slightly farther up the barrel)
if two swings have the same reported bat speed on baseball savant, but one has a higher pivot point to its rotation, that one will generate higher max EVs (and it'll do so slightly farther up the barrel)
got the $10 to fangraphs paypal notif in the middle of reading this
InstaGraphs: Introducing New Steamer Split Projections and More!
Introducing New Steamer Split Projections and More!
FanGraphs Members can now access a host of new Steamer projections, as well as historical ZiPS projections.
blogs.fangraphs.com
January 28, 2025 at 10:24 PM
got the $10 to fangraphs paypal notif in the middle of reading this
btw i call this guy Cori, because all the rotating frames of reference
because i haven’t posted it here yet, this is something i have been working on and got “working” recently, the flow of energy through body segments during a swing.
i don’t trust it’s totally correct yet but it’s something like that, and looks pretty cool
i don’t trust it’s totally correct yet but it’s something like that, and looks pretty cool
January 28, 2025 at 9:54 PM
btw i call this guy Cori, because all the rotating frames of reference
because i haven’t posted it here yet, this is something i have been working on and got “working” recently, the flow of energy through body segments during a swing.
i don’t trust it’s totally correct yet but it’s something like that, and looks pretty cool
i don’t trust it’s totally correct yet but it’s something like that, and looks pretty cool
January 28, 2025 at 9:30 PM
because i haven’t posted it here yet, this is something i have been working on and got “working” recently, the flow of energy through body segments during a swing.
i don’t trust it’s totally correct yet but it’s something like that, and looks pretty cool
i don’t trust it’s totally correct yet but it’s something like that, and looks pretty cool
i’ve honestly kinda perfected doing the right hand rule with my left hand and fucking everything up for days
January 26, 2025 at 11:41 PM
i’ve honestly kinda perfected doing the right hand rule with my left hand and fucking everything up for days
@tangotiger.com this is how i got the swing plane. i said that the normal vector is the cross product of these two vectors which i figured must live in the plane and should work even for weird bat motions (i think)
January 18, 2025 at 7:44 PM
@tangotiger.com this is how i got the swing plane. i said that the normal vector is the cross product of these two vectors which i figured must live in the plane and should work even for weird bat motions (i think)
long thread time.
i set out to answer a question and the result wasn’t *nothing* it was just, nothing
does the comfort of knowledge make up for the lost time? no
this is a thread about squared up rate, why it’s inherently biased, and how (if you would please consult the graph) that doesn’t matter
i set out to answer a question and the result wasn’t *nothing* it was just, nothing
does the comfort of knowledge make up for the lost time? no
this is a thread about squared up rate, why it’s inherently biased, and how (if you would please consult the graph) that doesn’t matter
January 16, 2025 at 9:51 PM
long thread time.
i set out to answer a question and the result wasn’t *nothing* it was just, nothing
does the comfort of knowledge make up for the lost time? no
this is a thread about squared up rate, why it’s inherently biased, and how (if you would please consult the graph) that doesn’t matter
i set out to answer a question and the result wasn’t *nothing* it was just, nothing
does the comfort of knowledge make up for the lost time? no
this is a thread about squared up rate, why it’s inherently biased, and how (if you would please consult the graph) that doesn’t matter
was watching a presentation where the guy was introducing the early work on a topic with a screenshot of a snippet of a paper, but then said “that’s the whole paper by the way”
December 12, 2024 at 7:41 PM
was watching a presentation where the guy was introducing the early work on a topic with a screenshot of a snippet of a paper, but then said “that’s the whole paper by the way”
fuck you breslow
December 3, 2024 at 3:44 PM
fuck you breslow
i don’t know how i’m gonna survive when i don’t have access to this super computer anymore because i just requested 2TB of ram for a job and it started running within an hour
November 30, 2024 at 10:29 PM
i don’t know how i’m gonna survive when i don’t have access to this super computer anymore because i just requested 2TB of ram for a job and it started running within an hour
the dbacks gotta change the recording you get when you call the ticket office calling themselves “the 2023 national league champion arizona diamondbacks” it’s embarassing
November 29, 2024 at 11:00 PM
the dbacks gotta change the recording you get when you call the ticket office calling themselves “the 2023 national league champion arizona diamondbacks” it’s embarassing
having read the vanity fair piece i somehow get the impression that despite it all, the essayist is more humbert humbert than cormac
November 20, 2024 at 11:42 PM
having read the vanity fair piece i somehow get the impression that despite it all, the essayist is more humbert humbert than cormac
just had a many hour debate because the software documentation says this when it’s literally not true
November 19, 2024 at 8:59 PM
just had a many hour debate because the software documentation says this when it’s literally not true
i want to do a hall of fame ballot too but i’m putting it off because it’s gonna take a long time to google each guy to see if they’ve done something bad recently
November 19, 2024 at 3:33 AM
i want to do a hall of fame ballot too but i’m putting it off because it’s gonna take a long time to google each guy to see if they’ve done something bad recently