Seyffarth participated in the 1948 Winter Olympics in St. Moritz, the first Winter Olympic Games to be held in twelve years. As a result of the lack of competition during, and shortly after, World War II, Seyffarth entered the 5,000 m as the world record holder, a record he had set almost exactly seven years earlier, in 1941.
Seyffarth competed in the 1948 Winter Olympics in St. Moritz, marking the first Winter Games to be held in twelve years. Due to World War II's impact on competition, Seyffarth entered the 5,000 m race as the world record holder, a title he had earned seven years prior.