2015 FINA Aquatics World Championships
2015-08-08, Kazan, Russia. The 16th FINA Aquatics World Championships. Katie Ledecky of Team USA slams her arm into the pool as she finishes yet another perfect World Championships by winning the 800m freestyle title, becoming the first swimmer ever to sweep the 200m, 400m, 800m and 1500m frees at a single World Championships. She does so with style, by breaking one of her own world records. Ledecky has entered 10 Olympic and World Championships events from 2012 to 2015, and wins gold in all of them - a perfect 10 record!