BYRON — When Ava Olson's golf club hit the ground before the ball during a driving-range practice session two years ago, pain shot through her right hand. Olson, a sophomore at Byron High School at the time, instantly knew something was wrong that day at Hadley Creek Golf Course and Learning Center in Rochester. She didn't know the extent of the injury, but as the initial jolt of pain eased, Olson went back to swinging her clubs. "I had chunked …