American star Katie Ledecky won her seventh world title in the women’s 800-meter freestyle on Saturday, fending off the challenges of Canadian sensation Summer McIntosh and Australia’s Lani Pallister.

Ledecky won with a time of 8:05.62, both a world championships record and the fourth fastest time in the history of the 800m free. Pallister wasn't far behind (8:05.98), with McIntosh claiming bronze (8:07.29).

Katie Ledecky showed she is still the gold standard in the 800 metres freestyle after ending Summer McIntosh's bid for five individual titles while fending off Australian surprise package Lani Pallister at the world championships on Saturday.