Ningel became World and European champion as a single roller figure skater in 1956 and 1957.

He also won the German roller figure skating pair championships with Marika Kilius from 1955 to 1957.

In pairs figure skating, Kilius / Ningel became the 1957 World silver and 1956 World bronze medalists, three-time (1955–195) European bronze medalists, and three-time German national champions.

With his wife Margret Göbl, Ningel is the 1962 World bronze medalist, a three-time (1960–1962) European medalist, and a three-time (1960–1962) German national champion.

The pair also finished fifth at the 1960 Winter Olympics in Squaw Valley.