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 -->
Miz owns two of the three best pitches by PitchPro this season (min 50 pitches thrown)
July 23, 2025 at 1:51 PM
Miz owns two of the three best pitches by PitchPro this season (min 50 pitches thrown)
Final 2025 Starting Pitcher ranks for StuffPro and PitchPro
September 29, 2025 at 1:38 PM
Final 2025 Starting Pitcher ranks for StuffPro and PitchPro
The generous geniuses building StuffPro and PitchPro at @baseballprospectus.com have those grades even for pitchers at Triple A. Check out Seth's article to see where Morris's slider and cutter each rank in PitchPro; you're gonna want to file it away.
November 20, 2024 at 2:25 PM
The generous geniuses building StuffPro and PitchPro at @baseballprospectus.com have those grades even for pitchers at Triple A. Check out Seth's article to see where Morris's slider and cutter each rank in PitchPro; you're gonna want to file it away.
I've yet to find a repeatable skill in catchers getting excess value from a pitch beyond what you'd expect given PitchPro/pitcher/batter, but I have found PitchPro impact to be repeatable. If interested here's full leaderboard, w/ William Contreras on top. docs.google.com/spreadsheets...
catcher_gamecalling_leaderboard_2025
docs.google.com
September 25, 2025 at 8:30 PM
I've yet to find a repeatable skill in catchers getting excess value from a pitch beyond what you'd expect given PitchPro/pitcher/batter, but I have found PitchPro impact to be repeatable. If interested here's full leaderboard, w/ William Contreras on top. docs.google.com/spreadsheets...
I think Trop's high whiff rate park factor is due to the quality of pitches thrown there. Controlling for pitch quality and batter's faced shows that it actually has a relatively low park factor for whiffs per swing.
November 15, 2024 at 1:01 AM
I think Trop's high whiff rate park factor is due to the quality of pitches thrown there. Controlling for pitch quality and batter's faced shows that it actually has a relatively low park factor for whiffs per swing.
PitchPro thought the 104 fastball on the corner was Mason Miller's 7th best fastball thrown yesterday, I bring no pleasure in reporting this
October 2, 2025 at 8:22 PM
PitchPro thought the 104 fastball on the corner was Mason Miller's 7th best fastball thrown yesterday, I bring no pleasure in reporting this
StuffPro, PitchPro and Arsenal Metrics now available through TruMedia for NCAA teams 👀
If you're with a team and are interested in access please reach out!
If you're with a team and are interested in access please reach out!
December 5, 2025 at 8:55 PM
StuffPro, PitchPro and Arsenal Metrics now available through TruMedia for NCAA teams 👀
If you're with a team and are interested in access please reach out!
If you're with a team and are interested in access please reach out!
Braves starters by StuffPro and PitchPro after the opening series
March 31, 2025 at 3:08 PM
Braves starters by StuffPro and PitchPro after the opening series
PitchPro really liked how Rey attacked righties last night
April 22, 2026 at 2:44 PM
PitchPro really liked how Rey attacked righties last night
StuffPro and PitchPro Leaderboards Are Live!
by Craig Goldstein (@cdgoldstein.baseballprospectus.com)
by Craig Goldstein (@cdgoldstein.baseballprospectus.com)
StuffPro and PitchPro Leaderboards Are Live! | Baseball Prospectus
Get all the details and see how to navigate the leaderboards here!
www.baseballprospectus.com
April 2, 2024 at 5:55 PM
StuffPro and PitchPro Leaderboards Are Live!
by Craig Goldstein (@cdgoldstein.baseballprospectus.com)
by Craig Goldstein (@cdgoldstein.baseballprospectus.com)
NOTE: the list in my OP is for Orioles *starters* only. Here is the top 10 pitches thrown by Orioles relievers, first by StuffPro then by PitchPro.
February 10, 2025 at 7:25 PM
NOTE: the list in my OP is for Orioles *starters* only. Here is the top 10 pitches thrown by Orioles relievers, first by StuffPro then by PitchPro.
Mick Abel I'm definitely taking the under on all of his projections. All of our underlying pitch metrics (StuffPro, PitchPro, Arsenal Metrics) love him. The trajectories look beautiful together
April 10, 2026 at 3:14 PM
Mick Abel I'm definitely taking the under on all of his projections. All of our underlying pitch metrics (StuffPro, PitchPro, Arsenal Metrics) love him. The trajectories look beautiful together
@srbrown70.bsky.social's essay is ordered before any other in the book, and starts things off strong with a detailed introduction to StuffPro and PitchPro, BP's pitch-modeling metrics, and how those have been included to improve both our analysis and PECOTA.
January 28, 2025 at 10:41 PM
@srbrown70.bsky.social's essay is ordered before any other in the book, and starts things off strong with a detailed introduction to StuffPro and PitchPro, BP's pitch-modeling metrics, and how those have been included to improve both our analysis and PECOTA.
thoroughly enjoyed @matrueblood.bsky.social on the Manaea signing (plus Canning and Buehler). PitchPro never really surfaced Manaea's mid-season adjustment, and Matt figured out why (and why it won't and shouldn't bother the Mets):
TA: Mets Get Manaea, Maybe A New Man?; Buehler's Trip to Boston | Baseball Prospectus
And Griffin Canning is the prototypical reclamation project.
www.baseballprospectus.com
December 24, 2024 at 6:15 PM
thoroughly enjoyed @matrueblood.bsky.social on the Manaea signing (plus Canning and Buehler). PitchPro never really surfaced Manaea's mid-season adjustment, and Matt figured out why (and why it won't and shouldn't bother the Mets):
Povich's sweeper moves to 2nd on the list when factoring in location as well (PitchPro). Bradish still king.
February 10, 2025 at 7:09 PM
Povich's sweeper moves to 2nd on the list when factoring in location as well (PitchPro). Bradish still king.
Theoretically one could have a beta version of PitchPro that included Arsenal Metrics, and if one did have that it could potentially look like this on a percentile scale for him
January 23, 2025 at 5:44 PM
Theoretically one could have a beta version of PitchPro that included Arsenal Metrics, and if one did have that it could potentially look like this on a percentile scale for him
Been playing w/ a PitchPro update that would let us decompose the value of a pitcher’s locations and Arsenal Metrics and also provide an estimate of the model’s uncertainty. The update did not solve the riddle of Bryce Elder.
(ranks relative to ~150 pitchers w/ min 500 pitches)
(ranks relative to ~150 pitchers w/ min 500 pitches)
May 23, 2026 at 8:51 PM
Been playing w/ a PitchPro update that would let us decompose the value of a pitcher’s locations and Arsenal Metrics and also provide an estimate of the model’s uncertainty. The update did not solve the riddle of Bryce Elder.
(ranks relative to ~150 pitchers w/ min 500 pitches)
(ranks relative to ~150 pitchers w/ min 500 pitches)
The Best Opening Day Matchups by BP’s New Pitch Metrics
by Ginny Searle (@ginnysearle.bsky.social) and Craig Goldstein (@cdgoldstein.baseballprospectus.com)
by Ginny Searle (@ginnysearle.bsky.social) and Craig Goldstein (@cdgoldstein.baseballprospectus.com)
The Best Opening Day Matchups by BP's New Pitch Metrics | Baseball Prospectus
Rating the best of the best, through the use of PitchPro and StuffPro.
www.baseballprospectus.com
March 27, 2024 at 5:52 PM
The Best Opening Day Matchups by BP’s New Pitch Metrics
by Ginny Searle (@ginnysearle.bsky.social) and Craig Goldstein (@cdgoldstein.baseballprospectus.com)
by Ginny Searle (@ginnysearle.bsky.social) and Craig Goldstein (@cdgoldstein.baseballprospectus.com)
LOB% is obviously part of his job, but in other years you'd see guys bite on the breaking balls in deep counts, and that's not going to happen if batters don't believe the sinker is coming in the right spot, much less the breakers themselves
Fwiw PitchPro concurs, I just can't get the sort right
Fwiw PitchPro concurs, I just can't get the sort right
April 16, 2026 at 3:06 PM
LOB% is obviously part of his job, but in other years you'd see guys bite on the breaking balls in deep counts, and that's not going to happen if batters don't believe the sinker is coming in the right spot, much less the breakers themselves
Fwiw PitchPro concurs, I just can't get the sort right
Fwiw PitchPro concurs, I just can't get the sort right
On Judge's HR against Varland, PitchPro estimated an expected wOBACON of just 0.139 if put in play. That's the second lowest E[wOBACON] for any home run in 2025.
Note that Bleday's homer off Matsui came off the bat at just 94.8 mph and snuck over the wall.
Note that Bleday's homer off Matsui came off the bat at just 94.8 mph and snuck over the wall.
October 8, 2025 at 6:48 PM
On Judge's HR against Varland, PitchPro estimated an expected wOBACON of just 0.139 if put in play. That's the second lowest E[wOBACON] for any home run in 2025.
Note that Bleday's homer off Matsui came off the bat at just 94.8 mph and snuck over the wall.
Note that Bleday's homer off Matsui came off the bat at just 94.8 mph and snuck over the wall.
Looking for a solution to a decades-old problem for the Rockies, @euqubud.baseballprospectus.com applies PitchPro to Coors Field and discovers that some long-accepted truths about pitching at altitude aren't as clear-cut as we thought. Mario Delgado Genzor's comments are as clear-cut as Coors isn't.
January 28, 2025 at 10:31 PM
Looking for a solution to a decades-old problem for the Rockies, @euqubud.baseballprospectus.com applies PitchPro to Coors Field and discovers that some long-accepted truths about pitching at altitude aren't as clear-cut as we thought. Mario Delgado Genzor's comments are as clear-cut as Coors isn't.
Is it Work or Life 🤹🏼♀️
#PitchPro Jermaine Myrie @mentornational.bsky.social shares his perspective on work life balance on #PitchLive podcast. Watch the full Episode 61 and subscribe to “Pitch Live with Amy Summers” at: www.youtube.com/@pitchpublicitynyc
#BTS #Mentorship #Leadership #Mentor
#PitchPro Jermaine Myrie @mentornational.bsky.social shares his perspective on work life balance on #PitchLive podcast. Watch the full Episode 61 and subscribe to “Pitch Live with Amy Summers” at: www.youtube.com/@pitchpublicitynyc
#BTS #Mentorship #Leadership #Mentor
July 16, 2026 at 10:09 AM
Is it Work or Life 🤹🏼♀️
#PitchPro Jermaine Myrie @mentornational.bsky.social shares his perspective on work life balance on #PitchLive podcast. Watch the full Episode 61 and subscribe to “Pitch Live with Amy Summers” at: www.youtube.com/@pitchpublicitynyc
#BTS #Mentorship #Leadership #Mentor
#PitchPro Jermaine Myrie @mentornational.bsky.social shares his perspective on work life balance on #PitchLive podcast. Watch the full Episode 61 and subscribe to “Pitch Live with Amy Summers” at: www.youtube.com/@pitchpublicitynyc
#BTS #Mentorship #Leadership #Mentor
Ive tried this, I'll have to find the thread, but what I found basically was: C have a noticeable effect on the quality of pitches thrown as measured by StuffPro or PitchPro, this effect is mainly driven by some catchers calling for breaking balls more often, and the effect is very sticky. However,
November 14, 2025 at 4:02 PM
Ive tried this, I'll have to find the thread, but what I found basically was: C have a noticeable effect on the quality of pitches thrown as measured by StuffPro or PitchPro, this effect is mainly driven by some catchers calling for breaking balls more often, and the effect is very sticky. However,
It’s Not For Everyone 📚
#PitchPro Richelle Fredson shares what could sabotage your book proposal on #PitchLive podcast. Watch the full Episode 63 and subscribe to “Pitch Live with Amy Summers” at: www.youtube.com/@pitchpublicitynyc
#BTS #PitchLive #MSH #Entrepreneurship #Pitching #Publishing
#PitchPro Richelle Fredson shares what could sabotage your book proposal on #PitchLive podcast. Watch the full Episode 63 and subscribe to “Pitch Live with Amy Summers” at: www.youtube.com/@pitchpublicitynyc
#BTS #PitchLive #MSH #Entrepreneurship #Pitching #Publishing
August 13, 2026 at 1:27 AM
It’s Not For Everyone 📚
#PitchPro Richelle Fredson shares what could sabotage your book proposal on #PitchLive podcast. Watch the full Episode 63 and subscribe to “Pitch Live with Amy Summers” at: www.youtube.com/@pitchpublicitynyc
#BTS #PitchLive #MSH #Entrepreneurship #Pitching #Publishing
#PitchPro Richelle Fredson shares what could sabotage your book proposal on #PitchLive podcast. Watch the full Episode 63 and subscribe to “Pitch Live with Amy Summers” at: www.youtube.com/@pitchpublicitynyc
#BTS #PitchLive #MSH #Entrepreneurship #Pitching #Publishing