Stolz was born on May 21, 2004, in West Bend, Wisconsin. Stolz made his international debut during the 2021–22 ISU Speed Skating World Cup in Salt Lake City, where he set the junior world record and American record in the 500 meters with a time of 34.11 and the junior world record in the 1,000 meters with a time of 1:07.62.

On November 11, 2022, during the first event of the 2022–23 ISU Speed Skating World Cup, Stolz became the youngest man to win an individual World Cup speed skating race. He won the 1500 meters with a time of 1 minute, 44.891 seconds, a track record at Sørmarka Arena.

At the 2023 World Junior Speed Skating Championships, Stolz won four gold medals (500 meters, 1000 meters, 1500 meters, team sprint) and two bronze medals, and was named the overall World Junior Speed Skating champion.

At the 2023 World Single Distances Speed Skating Championships, Stolz won a gold medal in the 500 meters, 1000 meters and 1500 meters events, becoming the youngest world champion in history. In the 500 meters, he finished with a time of 34.10, while he finished the 1000 meters with a time of 1:07.11, both were the second-fastest time in history for a sea level rink. He became the first male speed skater to win three individual gold medals at a single World Championship.

On January 26, 2024, during the fifth event of the 2023–24 ISU Speed Skating World Cup, Stolz set the world record in the 1,000 meters with a time of 1:05.37.

According to en.wikipedia.org. Source of photos: internet