Mueller competed at the
2023 Junior World Luge Championships and won a bronze medal in the doubles event, along with
Ansel Haugsjaa. The next year they won a gold medal in the doubles event. He competed at the
2025 FIL World Luge Championships and finished in fourth place in the
team relay with a time of 2:51.954. He then competed at the 2025
America-Pacific Luge Championship and won a gold medal in the doubles event, along with Haugsjaa. On November 29, 2025, during an Olympic test event, he finished in second place in the doubles event. During the
2025–26 Luge World Cup, on December 20, 2025, he earned his first career
Luge World Cup gold medal in the doubles event, with a time of 1:27.509. In January 2026, he was selected to represent the United States at the
2026 Winter Olympics. He competed in the
doubles event, along with Haugsjaa. During their first run they set a track record with a time of 52.482, and held the lead by 0.003 seconds. During their final run they were over a tenth of a second ahead of the field before a blip in the final corners added two tenths to their time and they finished in sixth place. ==References==