RedactedNarrative: Operator was towing his son on a wakeboard behind the watercraft with a tow rope. The wakeboarder attempted to perform a trick by flipping the board over while underway. The board came down on his right leg causing the leg to break between his knee and his ankle. The operator brought the wakeboarder back to their dock and he was transported by ambulance to the hospital. Life jackets were being worn, and alcohol was not a factor.