ABOUT THROWCHECK
Data-driven pitching biomechanics analysis for informed training decisions
OUR MISSION
Too many young pitchers are getting hurt. Tommy John surgeries are epidemic. But most injuries are preventable-if you catch the warning signs early. ThrowCheck makes biomechanical screening accessible to every coach, scout, and parent who cares about keeping arms healthy.
THE PROBLEM
Youth baseball has an injury crisis. Tommy John surgery rates have skyrocketed over the past two decades. Kids as young as 12 are blowing out their elbows. The culprits? Overuse, year-round throwing, showcases, and-most critically- high-risk mechanics that go unnoticed until it's too late.
Professional teams have motion capture labs and biomechanists. Youth programs have... nothing. Or worse, outdated advice based on anecdotes instead of data. The gap between pro-level analysis and what's available at the grassroots level is massive.
OUR SOLUTION
ThrowCheck brings professional-grade biomechanical screening to anyone with a smartphone and a web browser. No expensive equipment. No lab visits. No data uploads. Just point, record, and analyze-instantly.
Using cutting-edge computer vision (Google MediaPipe) and algorithms trained on biomechanical research, ThrowCheck identifies high-risk mechanics: excessive elbow valgus, late trunk rotation, poor sequencing. The same red flags that big-league teams pay biomechanists six figures to catch.
And because all processing happens locally in your browser, your video stays private. No uploads. No cloud storage. No compromises on privacy.
WHO WE ARE
ThrowCheck is built by Paternal Path, a veteran-owned company focused on using technology to protect the next generation.
We're not biomechanists or doctors-we're parents, coaches, and builders who saw a problem and decided to solve it. Our approach is simple: take research-backed principles, make them accessible, and never compromise on privacy or transparency.
Every line of code is written with one goal: keep young arms healthy.
MEET THE FOUNDER

Elwood Youman played baseball as a kid. Years later, his son picked up a ball, and he remembered how much he loved this game.
Watching him pitch made Elwood think about all the young arms that get hurt. Injuries that end seasons. Surgeries that didn't have to happen. Kids who lose the game before they're ready to let it go.
ThrowCheck exists because he believes we can catch the warning signs early. Not to replace coaches. Not to create fear. Just to give every parent and coach a chance to protect the arm in front of them.
The goal is simple: keep kids playing.
OUR PRINCIPLES
PRIVACY-FIRST
Your video never leaves your device. All analysis happens locally in your browser. No uploads, no cloud storage, no exceptions.
RESEARCH-BACKED
Our algorithms are grounded in peer-reviewed biomechanics research. We don't guess-we analyze based on what the science says increases injury risk.
ACCESSIBLE
Pro-level insights shouldn't require pro-level budgets. We price ThrowCheck so coaches, parents, and programs at every level can afford to protect their pitchers.
WHAT WE'RE NOT
ThrowCheck is not a medical device. We don't diagnose injuries. We don't replace doctors, physical therapists, or certified biomechanists.
We're a screening tool-a first line of defense. Think of us like a smoke detector: we alert you to risk so you can take action before there's a fire. If ThrowCheck flags high-risk mechanics, the next step is working with qualified professionals to address them.
JOIN THE MISSION
We're just getting started. ThrowCheck is in active development, with new features, improved algorithms, and expanded analysis on the roadmap.
If you care about keeping young arms healthy, we'd love to have you as part of the community. Try the tool, share feedback, and help us make biomechanical screening accessible to every pitcher who needs it.
READY TO START ANALYZING?
Try our free demo or join the waitlist for updates.