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Does the lead leg actually do something for hitters? Check out the new DL blog where I explain how force-time curves can help answer this question Read: drivelinebaseball.com/2026/04/forcin… S/O to @SamEhrlich @connerpelletier @Travis_Sawchik for their help putting this together!

Anduril is partnering with @KrakenTechGroup to deliver a fleet of small unmanned surface vehicles for the @USNavy. You can't command the sea without scale. anduril.com/news/anduril-p…

@SamEhrlich you did it finally!

3D printed today 🐻

Where does your velocity actually come from? Here's a break down a 99.8 MPH MoCap to show you how each mechanic positively or negatively affects your velo ⬇️

Do Weighted Baseballs Hurt Kids' Arms? 🤔 Our preprint is out! "After we adjusted for ball mass, lighter-ball trials showed higher corrected joint moments in youth pitchers, and most of that gap shrank again once we also adjusted for pitch speed." doi.org/10.51224/Sport…

Tyler Glasnow went from 10th percentile command to 70th percentile command in one offseason. Median miss distance down from 11.8 to 9.9 inches, major misses down 12%. Elite stuff was always there, now the command might be catching up 📈

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What does 4mph of bat speed actually look like? 🤔

Which one is the MLB player?

I attempted to recreate Tatsuya Imai's reverse slider🧵

Read about the Imai reverse slider... reverse-engineered in the @DrivelineBB Pitch Design Lab! We used Computer Vision seam segmentation models built in-house. There is *probably* a fair bit of non-magnus movement, but with high gyro, it is hard to tell.

Ran Imai's backwards slider through our CV seam detection trained on edger video. Not perfect for broadcast footage, but still a cool clip.

Seam detection models at Driveline used for the reverse slider?! More this week as we attempt to throw a bunch in our Pitch Design lab and get you slowmo video and proper SSW/non-magnus data!

What +4mph of Bat Speed in the lab looks like

Improving our already great seam model using autoresearch. No additional annotation just gains. This was annotated with @roboflow and retrained on @modal servers. github.com/drivelineresea…

Losers becomes losers by being afraid of losing.

Reminder that @DrivelineBB has a few open source projects on our GitHub, including: - OpenBiomechanics: Premier source of open mocap data (S&C, Pitching, Hitting, and CV!) - baseballscience-docker - stalker-radar-python - autoresearch-claude-code github.com/drivelineresea…

You have the numbers. Now get the plan. Introducing the Driveline Roadmap. Baseball's most complete player development system. Your data, connected. Your goals, within reach. Every step mapped out. All you have to do is show up. Know where you've been. Know where you are. Know where you're going. Coming soon to Driveline Baseball. Stay in the know → drivelinebaseball.com/training/

I'm hiring to my team at @DrivelineBB. This is an on-site internship in Kent, WA (Seattle) working directly under me with a strong focus on the fields of Computer Vision, Agentic Coding/Harnesses, Infrastructure Engineering, and Motion Capture. teamworkonline.com/baseball-jobs/…

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