Yesterday Delilah Muhammed broke her own world record in the 400m hurdles (52.16) and American Sydney McLaughlin (just 19) was 2nd in 52.23. They just ran away from the field.
Conselius Kipruto, who has been injured much of this year, won the men's steeple by 0.01 in 8:01.
Today's women's 1500 m and 5000 m were won in very fast times.