The 20-year-old sprinter from Markham, Ont., dominated the field in the men's 100 metres at the NCAA track and field championships on Friday, clocking 9.75 seconds with a 2.7 wind aide.
De Grasse, who races for the University of Southern California, also prevailed in the 200 in 19.58 with a 2.4 wind aide.
Athletes have until Sunday to submit qualifying marks, with the top two Canadian performance securing berths as long as they meet Athletics Canada's performance standards.
More to come
