As an individual, Brown is the 2018 Commonwealth Games silver medallist in the 200 m and won several junior championship medals early in his career.
[1] Brown attended Birchmount Park Collegiate Institute until 2010, and committed to the University of Southern California (USC) on a track scholarship.
[3] The 2010 track season saw Brown suffer through several injuries, including in a dramatic 200 m final at the 2010 Ontario Federation of School Athletic Associations (OFSAA) meet.
[5] Brown finished a successful season winning silver with the men's 4×100 metres relay team and won individual bronze in the 100 m at the 2011 Pan American Junior Athletics Championships hosted in Miramar, Florida, United States at the Ansin Sports Complex.
He also ran with the Canadian 4 × 100 m relay team, winning a bronze medal while running at 37.92 with Gavin Smellie, Dontae Richards-Kwok, and Justyn Warner.
Team Canada repeated their bronze medal win in the relay, running a 38.13 with Andre De Grasse, Brendon Rodney, and Justyn Warner.
Missing their anchor Andre De Grasse, the Canadian relay team ultimately placed sixth in the finals.
[11] Named to Canada's team for the Games, specifically to compete in the 200 m, Brown initially placed third in the event final with a time of 20.34.
However, second-place finisher Zharnel Hughes was then disqualified for jostling eventual gold medalist Jereem Richards, resulting in Brown winning the silver medal.
In a disappointing finish, the Canadian relay team did not advance to the 4 × 100 m final despite having the eighth-fastest overall time due to their running in the faster of the two heats.
[17] The COVID-19 pandemic resulted in the cancellation of much of the international athletic season in 2020 and the 2020 Summer Olympics in Tokyo being delayed by a full year.
Brown opted not to contest the 100 m in Tokyo, instead aiming to maximize his chances in the 200 m.[15] He placed first in his heat, and then won his semi-final with a season's best time of 19.99, advancing to his first individual Olympic final.
"[19] Brown, Jerome Blake, Brendon Rodney and Andre De Grasse then went on to the 4 × 100 m relay, where they won a second consecutive bronze medal.
[20] On 18 February 2022, Great Britain was stripped of its silver medal in the men's 4 × 100 m relay after the Court of Arbitration for Sport confirmed CJ Ujah's doping violation.
[26] In advance of the 4 × 100 m relay, the prospects of the Canadian team were called into question with anchor runner De Grasse's struggles with COVID-19 infection shortly before the championships.
"[29] Brown was initially named to the Canadian team for the 2022 Commonwealth Games but withdrew after the World Championships, with Athletics Canada citing a need "to properly recover and prepare for the rest of the season.
[34] With anchor De Grasse struggling with injury and declining to run in the heats of the 4 × 100 metres relay in favour of focusing on his individual 200 m final, the Canadian team was eliminated and was unable to attempt a defence of its World title.
[40] In the final, the Canadians ran a season's best time of 37.50 and captured the gold medal, in what was widely considered a major upset victory, with a botched baton exchange ending the hopes of the heavily favoured American team.