American swimmer Katie Ledecky won the women's 800-meter freestyle final on Friday night, setting a world record while capturing her fourth gold of the Rio Olympics.
Ledecky swam the race in 8:04.79.
Jazmin Carlin of Great Britain won the silver and Boglarka Kapas of Hungary won the bronze. Leah Smith of the United States finished sixth.
Ledecky qualified for the final by setting an Olympic record of 8:12.86 in topping Thursday's preliminary heats.
She already held the world records in the 400-, 800-, and 1,500-meter freestyle coming into the RIo Games and broke her own record in the 400m when she won gold on Sunday.
Ledecky also won a silver in the 4x100-meter freestyle this past weekend.