[2][3] He spent the first eight years of his life as a resident of the United Kingdom until he and his family moved to New York City.

In the second round, Chamley-Watson fenced Alaaeldin Abouelkassem, an opponent representing the country of Egypt, and was defeated 15 – 10.

In the team event, the United States beat France 45–39 in the quarterfinals, but lost 24–45 to Italy in the semi-final.

[6] In the team event, the United States beat Egypt 45–27 in the quarterfinals, before losing 41–45 to Russia in the semi-finals.

In the team event, the United States beat Egypt 45–35 in the quarterfinals, but lost 38–45 to Italy in the semi-finals.

During a match in his World Championships debut, Chamley-Watson wrapped his arm around the back of his head and struck his opponent in the chest with his foil.

[8] Growing up, Chamley-Watson was engaged in the fashion world by his mother, Elizabeth Chamley[39] who was formerly a model in the UK.

In addition to his interest in fashion, Chamley-Watson was motivated to begin modeling as a way to give the sport of fencing more exposure.

Additionally, he regularly wears a Richard Mille watch and Nike fencing shoes and socks at competitions, as well as a Red Bull cap in between matches and on podiums.

[47] Chamley-Watson has been involved in voters' rights, participating the ID check with VoteRiders and urging his followers to do the same.