Katie Ledecky has extended her record haul of medals from the world championships to 21, two more than any other female swimmer managed before. All but three of them are gold.
The 25-year-old Ledecky claimed her 18th gold at a worlds on Wednesday as the United States won the women’s 4x200 freestyle relay final, clocking the fastest split – 1:53.67 – to help the Americans triumph in a championship record 7:41.45.
