2018 In January 2018, Loos competed at the RD761 International Junior Team Cup, where he helped the USA finish third in the team competition. Individually, he finished seventh in the all-around and won silver on floor exercise and bronze on vault. In August Loos competed at the
U.S. National Championships in the junior 17-18 division. He placed second in the all-around behind
Brandon Briones. Loos was selected to represent the United States at the
Pan American Championships alongside
Cameron Bock,
Spencer Goodell,
Kanji Oyama, and
Genki Suzuki. Loos helped the United States win gold as a team.
2019 Loos competed at the
2019 Winter Cup where he placed 16th in the all-around but won bronze on floor exercise behind
Sam Mikulak and Jacob Moore. In August Loos competed at the
U.S. National Championships where he finished 10th in the all-around and fourth on floor exercise.
2020–21 In early 2020, Loos competed at the Winter Cup and finished 18th in the all-around. He also started competing for the
Stanford Cardinal in collegiate gymnastics; however the NCAA season was cut short due to the ongoing
COVID-19 pandemic. Loos returned to competition at the
2021 Winter Cup where he finished second in the all-around behind
Cameron Bock. He next competed at the
2021 NCAA Championships where he helped Stanford defend their team title. Individually, he won bronze on rings. Loos was selected to compete at the
2021 Pan American Championships; he helped the team win the silver medal behind Brazil, and individually he finished fourth in the all-around. Due to competing at the Pan American Championships, Loos was invited to compete at the upcoming
Olympic Trials. Loos finished ninth in the all-around at the Olympic Trials and was not added to the team. In September Loos was selected to compete at the
Koper Challenge Cup. While there he finished fourth on floor exercise and rings and eighth on vault.
2022 Loos placed eighth in the all-around at the
2022 Winter Cup. He was selected to compete at the DTB Pokal Mixed Cup in
Stuttgart alongside
Colt Walker,
Curran Phillips,
Katelyn Jong,
Karis German, and
Levi Jung-Ruivivar. He competed on floor exercise and horizontal bar, helping the USA win. At the
NCAA Championship Loos helped Stanford defend their national title. Additionally, he placed first on rings, winning his first individual national title. In June, Loos was selected to represent the United States at the
Pan American Championships alongside
Brody Malone,
Yul Moldauer,
Colt Walker, and
Shane Wiskus. On the first day of competition Loos competed on floor exercise, rings, vault, and horizontal bar to help qualify the United States in first place to the team final. Individually, he won silver on floor exercise behind Moldauer and bronze on rings behind Brazilians
Arthur Zanetti and
Caio Souza. During the team final Loos competed on floor, pommel horse, rings, vault, and horizontal bar to help the USA win gold ahead of the
reigning team champion Brazil. In late July, Loos competed at the
U.S. Classic where he placed seventh in the all-around but recorded the third-highest vault and rings scores.
2023 to present Loos competed at the
2023 Winter Cup and placed sixth in the all-around and second on rings. In March, he competed at the
Baku World Cup, winning bronze on floor exercise behind
Milad Karimi and
Illia Kovtun. In August, Loos competed at the
Core Hydration Classic where he placed fifth in the all-around. Loos was injured in 2024, but was still able to compete at the
2024 National Championships. He failed to make the team and considered retirement. ==Eponymous skills==