Armstrong's journey into swimming began after a near-drowning incident at a lake. His parents enrolled him in swimming lessons, and his older brother Jake influenced him to take up the sport competitively. By 2020, Armstrong made his Olympic debut in Tokyo, finishing ninth in the Men's 100m Backstroke and contributing to the heats of the gold medal-winning 4x100m Medley Relay team.

Olympic and World Championship Success

Armstrong's Olympic success continued with a gold medal in the Men's 4x100m Medley Relay at the Tokyo 2021 Olympics. At the World Championships, he has accumulated an impressive tally of medals. In Doha 2024, he won gold in the Men's 100m Backstroke with a time of 52.68 seconds and contributed to victories in both the Men's and Mixed 4x100m Medley Relays.

Records and Achievements

Armstrong holds several records, including an Americas Record in the Men's 50m Backstroke with a time of 23.71 seconds set in Greensboro, NC, on April 28, 2022. This performance also places him among the top ten all-time swimmers in this event. Additionally, he has been part of relay teams that have set remarkable times in various competitions.

Recent Competitions

In July 2024, Armstrong competed at the Paris La Defense Arena. He participated in the Men's 100m Backstroke events and contributed to the USA team's victory in the Men's 4x100m Freestyle Relay Final on July 27. The relay team included notable swimmers such as Caeleb Dressel and Ryan Murphy.

Training and Personal Life

Armstrong trains with a professional group at the University of California under coach Dave Durden. He previously announced plans to move from Ohio State University to California following coach Matt Bowe. Despite Bowe's subsequent move to Michigan, Armstrong remained in California.

Future Plans

Looking ahead, Armstrong aims to continue his successful career by participating in upcoming international competitions. His dedication to training and passion for relays highlight his commitment to excelling in swimming.

Armstrong's journey from a near-drowning incident to becoming an Olympic gold medallist is inspiring. His achievements at both national and international levels underscore his talent and determination in the sport of swimming.