How Jomboy Is Changing the Way Baseball Is Watched

Growing up, when Jimmy O’Brien’s two sisters held a back-yard contest to determine who was more athletic, O’Brien, then a high-school student in suburban Connecticut, did the reasonable thing: he egged them on. The following year, he decided to make the Sister Olympics, as the family came to call it, a little more formal. He created the competitions, designed costumes, and got a referee’s shirt for his dad. O’Brien and two of his best friends, Nick and Jake, split play-by-play and spectator duties. He even rigged up three cameras to document the event, then edited the footage into a movie.