@TheJoeMarsh

"Engineering" - Driveline Baseball Amateur banana historian

Joined July 2013
  • Tweets5.4K
  • Following782
  • Followers3K
762Media
Launchpad powered by @DrivelineBB up and running for assessments at OGXHQ. Come see us! DM me for more info.
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my physics simulations confirm, jazz’s sweet spot is in fact shifted down from normal, but it’s nothing crazy! certainly not game breaking.
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Seattle, Phoenix, Tampa, and for this week, Tokyo— our team of experts in hitting, pitching, high-performance, and biomechanics delivers the highest standard of comprehensive athlete assessments, no matter where we are 🌎
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Driveline 📍 Seoul Biomechanics are cool. Arsenal analysis is cool. Force plates are cool. Data is cool. Knowing how to apply that info is cooler. 15 years of experience assessing MLB, MiLB, KBO, NPB, & CPBL players = a dataset w/ actionable insights across populations.
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OGX is partnering with @DrivelineBB to revolutionize softball player development by integrating Driveline’s advanced infrastructure with OGX’s softball expertise. This collaboration introduces innovative tools and resources for athletes and college programs. Read more below.
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I don't know how they do it, but you can add inventing the perfect sports drink to the list of Japan's accomplishments. Uncanny. Tastes like how water tastes in a dream.
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We are super excited for the release of part I of this series on the #biomechanics of Mykolas Alekna's WR discus throw just in time for the @Olympics. Thanks go to too many people to list here, but they're mentioned in the report! hmmrmedia.com/2024/07/analyz…

Analyzing Alekna’s Record Part 1: Rhythm and release

On Sunday, April 14, 2024, Mykolas Alekna competed in the open men’s discus competition at the World Athletics Invitational held in Ramona, Oklahoma, USA. The series included a new world record and

hmmrmedia.com
PJ Vazel@pjvazel24 Jul 2024
🔬 Anatomy of a @WorldAthletics Record 🥏 74.35 Mykolas Alekna discus throw 🎥 Landmark biomechanical study with 8 cameras and anemometer ! 📈 All 6 throws analysed ! 🎓 @MUSportScience @MarquetteU 🔗 @hmmrmedia
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Typa shit I’m on this summer
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Yabin retweeted
OC@OC____18 Aug 2023
Many reasons but just because a team has data (biomech or otherwise) doesn’t mean they use it. If they use it, doesn’t mean they use it well. If they can get it in a good place doesn’t mean they can communicate it. It’s a really complicated problem between tech & no tech
Sprint Science
@spikesonly18 Aug 2023
If I am a MLB team and have all of the biomechanical tools and data science, what is the explanation?
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Rare photo of John Cena on a camping trip.
An empty campsite with absolutely zero evidence of John Cena presence - from the litter-free rocky ground to the undisturbed mossy trees surrounding the area.

ALT An empty campsite with absolutely zero evidence of John Cena presence - from the litter-free rocky ground to the undisturbed mossy trees surrounding the area.

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Someone suggested that I ask MidJourney to show me a cat but to keep adding “A”s until it wasn’t a cat anymore. Here is “cat.”
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For markerless mocap validation, we often see R^2 values >0.85 and RMSE values <10deg when comparing all points from time series across systems. But what's good? What would we see if a hypothetical system just predicted avg mechanics for every throw? 1/n
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This is one of my favourite blog posts and I look at it once a week. If you're looking at your @proplayai data and want to know what's important - this is a great place to start. Awesome work @DrivelineBB and @TheJoeMarsh for this timeless classic. drivelinebaseball.com/2019/0…

Biomechanics Rewind: A Look at the Numbers from the Last Six Months

This past summer at Driveline, we had more than 200 athletes pass through our gym, and each of them went through a full biomechanics assessment. That’s a lot of data, a lot of arm paths, a lot of...

drivelinebaseball.com
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I have a steak in my freezer that is up 20%. What do I do?
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LOOK: Fish are dropped from a plane by Utah wildlife officials to restock remote lakes
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Humans are complex creatures. Baseball is complicated. We don’t have it figured out. But a few things are true: 1. More info is better than none 2. Pitch count limits are not universal 3. Building throwing fitness matters Measure it
Driveline Baseball
@DrivelineBB22 Jun 2021
Jack Leiter threw 124 pitches in yesterday’s start and the internet got mad. The thing is: workload management for pitchers is a little more nuanced than “pitches per start”; a thread.
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AK
@_akhaliq27 May 2021
From Motor Control to Team Play in Simulated Humanoid Football pdf: arxiv.org/pdf/2105.12196.pdf abs: arxiv.org/abs/2105.12196 video: youtu.be/KHMwq9pv7mg
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This is absolutely insane. Massive shoutout to @TheJoeMarsh ,the entire Sports Science team at @DrivelineBB , and everyone who played a part in these force plates getting installed (looking at you @mviydo ). I strongly believe there isn't a better place to become a better pitcher
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Our paper on adversarial motion priors has been accepted into @siggraph 2021! Adversarial imitation learning is finally starting to work for complex simulated characters. Paper + code: xbpeng.github.io/projects/AM… Thanks to my collaborators: Ze Ma, @pabbeel @svlevine @akanazawa
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Now *this* is baseball @TheSavBananas
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