Stolz was motivated to try skating after being excited from seeing the speed skaters travelling fast on the ice.
[1] Stolz credited Apolo Anton Ohno's and Shani Davis's successes at the 2010 Winter Olympics in Vancouver as inspiration to initially take up skating at the age of 5.
[4][5][6] At the 2021 US Long Track Speed Skating Championships (March 5–7, 2021) at the Utah Olympic Oval in Kearns, Utah, Stolz won his first U.S. senior national title in the 500 meters at just 16 years of age when he skated a time of 34.99 seconds in the first 500m race on March 5.
[7][8][9][10] The next day in the first of two men's 1000 meter races he set a second national junior record by skating 1:08.57 to place third.
[7][12][13] With a Samalog score of 139.045 he finished third in the chase for the Men's US Sprint Championship behind Kleba (138.815) and Kimani Griffin (138.840).
The following week (December 10–12, 2021) at ISU World Cup Speed Skating #4 in Calgary, Canada, at the Calgary Olympic Oval he once again broke the 500m junior world record, as well as the American record, with a time of 34.11 in the first 500m Division A race on the first day of competition.
[21] On the last day of competition Stolz won his first medal at the senior international level with a second place finish in the 1000m.
[22][23][24] During the Olympic trials at Pettit National Ice Center, he broke track records in the 500m and 1000m en route to winning both races.
[26] At 17 years old, he was the third-youngest American male to compete in the Olympics in long track speed skating.
[35][36] He became the first male speed skater to win three individual gold medals at a single World Championship.
[46] Stolz won a gold medal and broke the world record in big combination with 144.740 points.
He became the youngest man to win the World Allround Speed Skating Championships since fellow American Eric Heiden's second of three consecutive titles in 1978.
His favorite restaurants are Jimmy John's, Texas Roadhouse and The Fox & Hounds in his hometown of Kewaskum.