[1] at Westlake High School, in Atlanta, Georgia and member of the USA U20 Track and Field Team.

As a freshman in 2022, Njie won the Georgia Class 6A title in the 400m (46.41) and finished second in the 200m (21.01), which were U.S. No.

In June, he won the 400m (45.62) at the USATF U20 Outdoor Championships at Hayward Field, Eugene, Oregon,[4] prevailing in a loaded field that included Arizona State’s Jayden Davis and Class of 2024 star Ervin Pearson III, who is entering his freshman year at the University of Georgia.

He qualified for the final of the 400 metres at the 2024 World Athletics U20 Championships in Lima, Peru.

[6] He then won gold running the anchor leg for the American 4 x 400 metres relay team.