Won her fourth World Championship gold medal with a time of 3:52.15 in the 1,500m final in Tokyo, leading the race from start to finish and becoming the first woman to win four world titles in a distance event. Also broke her own 1,500m world record by 0.36 secs at the Prefontaine Classic, becoming the first woman in history to run the 1,500m in under 3 mins 49 secs. Also won the ATHLOS NYC Mile in October with a time of 4:17.78, the fastest women’s outdoor mile ever run on US soil.
