Stephen Sutton-Brown
@srbrown70.bsky.social
Braves, heat maps, cars, tractors, and music
Creator of StuffPro and Arsenal Metrics at Baseball Prospectus
He / him
Creator of StuffPro and Arsenal Metrics at Baseball Prospectus
He / him
Pinned
Introducing BP's new Arsenal Metrics | Baseball Prospectus
A new way at quantifying not just individual pitches, but how they work together.
www.baseballprospectus.com
I have never been more excited to release an article: Introducing BPro’s new Arsenal Metrics! www.baseballprospectus.com/news/article...
i hand write very little code now, and both my code quality and quantity have gone through the roof this year. switching to the agentic models really was a step change for me
February 5, 2026 at 7:05 PM
i hand write very little code now, and both my code quality and quantity have gone through the roof this year. switching to the agentic models really was a step change for me
Reposted by Stephen Sutton-Brown
Introducing the BP Top 101!
February 4, 2026 at 6:00 PM
Introducing the BP Top 101!
Reposted by Stephen Sutton-Brown
TAA 1 - Advanced Metrics that Matter - Premiere at PitchCon!
open.spotify.com
February 4, 2026 at 5:10 PM
Reposted by Stephen Sutton-Brown
I've weirdly liked Angel Chivilli for a while now, and I idly wondered if the Yankees could Luke Weaver him, basically. @srbrown70.bsky.social helped me figure that out a bit (not really, but also maybe?). Plus, Patrick on Julien is not to be missed.
www.baseballprospectus.com/news/article...
www.baseballprospectus.com/news/article...
February 4, 2026 at 4:52 PM
I've weirdly liked Angel Chivilli for a while now, and I idly wondered if the Yankees could Luke Weaver him, basically. @srbrown70.bsky.social helped me figure that out a bit (not really, but also maybe?). Plus, Patrick on Julien is not to be missed.
www.baseballprospectus.com/news/article...
www.baseballprospectus.com/news/article...
extremely important plot from @michaelrosen.bsky.social , we need to break the obsession with tallness in mlb
blogs.fangraphs.com/catcher-bloc...
blogs.fangraphs.com/catcher-bloc...
February 2, 2026 at 2:23 PM
extremely important plot from @michaelrosen.bsky.social , we need to break the obsession with tallness in mlb
blogs.fangraphs.com/catcher-bloc...
blogs.fangraphs.com/catcher-bloc...
the d'angelo tribute was incredible, bilal is incredible, that was so great
February 2, 2026 at 4:01 AM
the d'angelo tribute was incredible, bilal is incredible, that was so great
Reposted by Stephen Sutton-Brown
I'm testing out some visualizations for a FanGraphs project (coming soon, stay tuned) and I'd love to get some reader feedback. This tool is supposed to convey how frequently batters square the ball up at different LA's. Let me know if you think it does, and what you liked/disliked/want changed:
January 30, 2026 at 6:57 PM
I'm testing out some visualizations for a FanGraphs project (coming soon, stay tuned) and I'd love to get some reader feedback. This tool is supposed to convey how frequently batters square the ball up at different LA's. Let me know if you think it does, and what you liked/disliked/want changed:
Reposted by Stephen Sutton-Brown
Maybe a long shot but is anyone who follows me here capable of endorsing me to upload to stats section of arxiv ?
January 30, 2026 at 6:10 PM
Maybe a long shot but is anyone who follows me here capable of endorsing me to upload to stats section of arxiv ?
i've always been pretty good at drawing cars in the sense that my hand does what my brain tells it to do, but i'm only now trying to learn the actual disciplines to do perspectives right & such which means i just do boring drills of drawing straight lines and circles like a little kid in art class
January 30, 2026 at 1:42 AM
i've always been pretty good at drawing cars in the sense that my hand does what my brain tells it to do, but i'm only now trying to learn the actual disciplines to do perspectives right & such which means i just do boring drills of drawing straight lines and circles like a little kid in art class
the claim: a swarm of AI agents at my disposal
the reality:
the reality:
January 28, 2026 at 2:05 AM
the claim: a swarm of AI agents at my disposal
the reality:
the reality:
*in my best randy travis voice* i'm clearing off snowwwww i'm clearing of snow
January 26, 2026 at 4:46 PM
*in my best randy travis voice* i'm clearing off snowwwww i'm clearing of snow
i'm not trying to tell anyone how to live their life but the effort to clean up all of the toys and clutter every sunday night is always worth it imo
January 26, 2026 at 1:06 AM
i'm not trying to tell anyone how to live their life but the effort to clean up all of the toys and clutter every sunday night is always worth it imo
Reposted by Stephen Sutton-Brown
tomorrow, StandWithMinnesota.com will hit a million site visits and over 650,000 unique visitors.
i made it 10 days ago with $600 from you guys for hosting and cloudflare.
thank you. thank you.
i made it 10 days ago with $600 from you guys for hosting and cloudflare.
thank you. thank you.
Stand With Minnesota Donation Directory
Stand With Minnesota is a hub for supporting, learning, and taking action to support Minnesotans impacted by ICE and federal enforcement.
StandWithMinnesota.com
January 25, 2026 at 8:12 PM
tomorrow, StandWithMinnesota.com will hit a million site visits and over 650,000 unique visitors.
i made it 10 days ago with $600 from you guys for hosting and cloudflare.
thank you. thank you.
i made it 10 days ago with $600 from you guys for hosting and cloudflare.
thank you. thank you.
on a beatles kick and made a playlist of stuff i'm vibing to right now from them plus stuff that feels at home with those songs
music.apple.com/us/playlist/...
music.apple.com/us/playlist/...
Rename Later Vol. 3 by Stephen Brown on Apple Music
Playlist · 31 Songs
music.apple.com
January 25, 2026 at 7:17 PM
on a beatles kick and made a playlist of stuff i'm vibing to right now from them plus stuff that feels at home with those songs
music.apple.com/us/playlist/...
music.apple.com/us/playlist/...
laying on the couch listening to the simultaneous sounds of old bluegrass and the twins playing, it truly does not get any better than this
January 25, 2026 at 3:42 PM
laying on the couch listening to the simultaneous sounds of old bluegrass and the twins playing, it truly does not get any better than this
Reposted by Stephen Sutton-Brown
Federal agents in Minneapolis wrestled Alex Pretti to the ground and secured the handgun he was carrying moments before shooting him multiple times, according to a Washington Post analysis of video footage.
Read more: https://wapo.st/4qGOx8M
Read more: https://wapo.st/4qGOx8M
January 25, 2026 at 2:38 PM
Federal agents in Minneapolis wrestled Alex Pretti to the ground and secured the handgun he was carrying moments before shooting him multiple times, according to a Washington Post analysis of video footage.
Read more: https://wapo.st/4qGOx8M
Read more: https://wapo.st/4qGOx8M
laying on the ground and playing catch with yourself either makes you amazed at pro athletes‘ consistency or embarrassed at your own lack of athleticism
January 24, 2026 at 9:57 PM
laying on the ground and playing catch with yourself either makes you amazed at pro athletes‘ consistency or embarrassed at your own lack of athleticism
how do i train my dog to go potty in the house just for this week?
January 23, 2026 at 5:52 PM
how do i train my dog to go potty in the house just for this week?
Reposted by Stephen Sutton-Brown
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!
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.
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.
January 23, 2026 at 4:52 PM
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!
whoa this is cool!! feels great to see my name next to these, there's some outstanding work on this list
January 23, 2026 at 4:49 PM
whoa this is cool!! feels great to see my name next to these, there's some outstanding work on this list
Reposted by Stephen Sutton-Brown
if the bat speed stuff re: Kyle Tucker concerned you last week, you might find some palliative info in this piece, plus four of the other top free agents and what their bat speeds (and aging curves) tell us about how their markets played out
Great article here by @jrodrigues39.bsky.social and I love the visuals!
www.baseballprospectus.com/news/article...
www.baseballprospectus.com/news/article...
Reading the Curve: How Bat Speed Shaped the 2025 Free Agent Market | Baseball Prospectus
A look at five of the top free agent bats, and what their trajectories tell us about why their free agency played out the way it did.
www.baseballprospectus.com
January 22, 2026 at 5:57 PM
if the bat speed stuff re: Kyle Tucker concerned you last week, you might find some palliative info in this piece, plus four of the other top free agents and what their bat speeds (and aging curves) tell us about how their markets played out
A follow up from @jrodrigues39.bsky.social on his batter aging curves, looking at what they tell us about free agent hitters. Schwarber forced us to redo all the scaling (on the right is the original plot)
www.baseballprospectus.com/news/article...
www.baseballprospectus.com/news/article...
January 22, 2026 at 3:25 PM
A follow up from @jrodrigues39.bsky.social on his batter aging curves, looking at what they tell us about free agent hitters. Schwarber forced us to redo all the scaling (on the right is the original plot)
www.baseballprospectus.com/news/article...
www.baseballprospectus.com/news/article...
Sproat's shown great stuff but shaky command thus far, and grades out well by Movement Spread and Velocity Spread. Seems like a great deal for both sides
www.baseballprospectus.com/player/14460...
www.baseballprospectus.com/player/14460...
January 22, 2026 at 2:57 AM
Sproat's shown great stuff but shaky command thus far, and grades out well by Movement Spread and Velocity Spread. Seems like a great deal for both sides
www.baseballprospectus.com/player/14460...
www.baseballprospectus.com/player/14460...