As both his parents were collegiate swimmers, beginning at the age of eight, Hobson swam for the Lakeridge Swim Team, an outstanding program, under Coach Sharon Weiss.

[4] Continuing to achieve as a High School Senior, he swam a 45.22 in the 100 freestyle on May 22, 2021, which qualified him to compete at the "2020 U.S. Olympic Trials", which were held in June, 2021 due to COVID.

[7] In 2023, he became only the fifth US swimmer to break 1:45 seconds for the 200m freestyle, with a time of 1:44.87 in the semifinals of the world championships in Fukuoka, Japan.

[3] In individual competition, in an exceptionally close race in the 2024 Olympic Men's 200 m freestyle, with less than a second separating the top three finishers, advancing from seventh place, Hobson came in third at 1:44.79 to take the bronze medal.

Romanian team member David Popovici captured the gold medal with a 1:44.72, with Great Britain's Matthew Richards won the silver with a time of 1:44.74.