Ledecky, trailing McIntosh at the 700-meter mark, surged ahead on the final lap, fending off a hard-charging Pallister as McIntosh faded in the closing meters. With the win, Ledecky remained undefeated in the 800-meter freestyle finals event on the world stage dating back to 2012.

American Katie Ledecky continued domination of the women's 800 meters freestyle with a brilliant swim to win gold.

Katie Ledecky continued her dominance in the 800m freestyle event at the world championships on Saturday by winning her seventh title.