Swimming is an individual sport: It's just you standing on the block. No one can swim the race for you. But outside the pool, swimmers are everything but alone. They have their teammates all around them and their families cheering them on from the sidelines. Even for the best swimmers in the world, it’s hard to be successful without support. Three-time Olympic Champion Ranomi Kromowidjojo, for example, shows how a loving and supporting family can lead to greatness.