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At 18 years old, Jimmy Grohsong was living a dream that many young athletes have pursued for years. He was a three-time all-conference shortstop, a Division I college prospect and a player who lived for the game. Then one night on the Fourth of July 2023, everything changed. Fireworks exploded in his hand. In seconds, Jimmy lost his hand, his season, and what seemed like his entire baseball future. The path he had been working towards since childhood had disappeared. For a while, Jimmy accepted this fact. Baseball, the sport that shaped his identity, was over.
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AI-powered bat tracking could give baseball players the edge
Jimmy Grohsong throws a baseball using a bionic prosthetic hand after losing his hand in a fireworks accident. His comeback shows how technology can help athletes reclaim what they love. (Kurt “CyberGuy” Knutson)
When technology reopens the closed door
Two years later, Jimmy was back on the baseball field wearing something he never imagined using. An electronic prosthetic known as a “power hand”.
“The fact that I can sense and feel everything down to the smallest detail opened my mind to the possibility of actually doing everything,” he told CyberGuy.
The goal was not to recreate the past. It was to see what might still be possible.
The engineers who make advanced prosthetic hands saw Jimmy’s story and reached out to them with a simple question. What if he didn’t have to give up the game entirely? This question began an extraordinary journey that combined determination, patience, and advanced engineering.
“When building the Power Hand, we prioritized real-life use,” Dr. Adil Akhtar, founder and CEO of PSYONIC, told CyberGuy. “Although we have already put it through its fair share of stress tests, baseball is a whole different ball game.”
Baseball is certainly a brutal test for any piece of equipment. Throwing requires precise timing of release. Punching requires strength, stability and follow through. In the beginning, nothing came easy.
Learn how to throw again
Throwing a baseball with a bionic hand isn’t about raw power. It’s about timing and grip. The power hand uses muscle sensors that detect subtle movements in the arm. During throwing, many muscles are active simultaneously, which may cause the hand to open too early. Early throws declined. Some felt right. Others didn’t.
Instead of forcing the hand to grip harder, the PSYONIC team modified this technique. Jimmy learned to catch the ball lightly and let the momentum release it naturally. Small changes in grip made a real difference. Slowly, the throws started to fall. Then it became repeatable. For Jimmy, every clean throw rebuilt the confidence that had been missing for two years.
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Former Division I baseball player Jimmy Grohsong returns to the field with a bionic hand, redefining what is possible after a life-changing injury. (Kurt “CyberGuy” Knutson)
The surprising moment in Oracle Park
As Jimmy started throwing again, another door opened. He received an invitation to throw the ceremonial first pitch at Oracle Park for the San Francisco Giants. It was the team he grew up watching. The schedule was tight. He had no more than a week to prepare.
The pitch wasn’t perfect. It never matters. Standing on a Major League Baseball field with a bionic hand, Jimmy demonstrated something more than accuracy. He showed that the game is still a part of him. He later said that the experience taught him that life does not require perfection to be meaningful.
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Wearing a multi-jointed bionic hand, Jimmy Grohsong proves that baseball is still part of his identity two years after a devastating accident. (Kurt “CyberGuy” Knutson)
Can you really hit with a bionic hand?
Throwing was just part of the challenge. The multiplication raised a bigger question.
“Swinging the bat was a feeling I never thought I would ever feel again,” Jimmy said.
Engineers have discovered that bat position matters more with prosthetic limbs than with natural hands. When the bionic hand acts as the bottom hand on the racket, the impact spreads through the fingers. When it sits on top, the pressure is concentrated on the thumb. Jimmy is left-handed, which put the prosthetic in a safer position. “I can definitely make this thing happen,” he told CyberGuy.
Then came the first fluctuations. The sensation was unfamiliar. The connection seemed strange. However, the bat met the ball. One swing turned into another. Soon the balls started flying deep into the field. Then it happened. Jimmy sent one over the fence.
A first global moment
Those swings marked what many believe were the first documented home runs hit using a multi-jointed bionic hand. For Jimmy, it was more than just a technical achievement. It was emotional closure and a new beginning at the same time. He wasn’t trying to prove that prosthetics make better athletes. He was proving that they could help people reconnect with what they love. The bionic hand did not replace his identity. It gave him a new way to express it.
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Jimmy Grohsong learns to throw and hit again using an electronic prosthetic, combining cutting-edge design and engineering. (Kurt “CyberGuy” Knutson)
What this story says about resilience and determination
Jimmy’s return highlights a larger truth about modern assistive technology. At its best, the design focuses on real-world use rather than laboratory conditions. However, advanced prosthetics remain expensive, imperfect, and can break under pressure. For this reason, users need time, training, and patience to adapt. However, stories like this show how powerful thoughtful engineering can be when it works alongside human design. Ultimately, it’s not about superhero moments, it’s about reaching out, persevering and refusing to let one moment define a lifetime.
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Key takeaways for Kurt
Jimmy Grohsong’s journey back to baseball isn’t a story of overcoming the odds. It’s a story about redefining them. Through support, innovation, and tireless effort, he found a way to return to the field on his own terms. Technology did not give him his old life back. It helped him build a new game that still included the game he loved.
Has technology ever helped you reconnect with something you thought you had lost? Let us know by writing to us at Cyberguy.com.
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Get the best tech tips, breaking security alerts, and exclusive deals delivered straight to your inbox. Plus, you’ll get instant access to my Ultimate Scam Survival Guide – for free when you join my site CYBERGUY.COM Newsletter.
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