Chesapeake, Ohio is set on the banks of the Ohio River. At last count, less than 1,000 people live in the tiny town, steeped in railway history. Stuck halfway between the two bridges that connect the town to its neighbor Huntington, West Virginia is Jill’s Tumbleworld. Owned by Jill Greenhill, the gym plays home to the Dreams All Stars and more than 350 athletes, some of whom travel two hours to train. When the girls and boys, coaches and trainers head home after a rigorous practice, they can be seen squeezing one another’s hands three times. Later, there will be a flurry of texts and social media posts that read simply, “Sqx3.”