It is personal record season. A personal record is the most important mark in swimming, running, erging, lifting and sweating. It is the measure of a swimmer's fastest time over a certain distance. It is also a measure of dedication and courage. It is pure, symbolic and incredibly hard to attain. PR's measure the evolution of the athlete and the progress of the sport. At every level, the pursuit of personal records in swimming as in life is performance at its very best.