Dee ihe na-aga n'ihu maka paragraf a - Joop Demmenie (19 Disemba 1918 <unk> 3 June 1991) bụ onye na-agba ịnyịnya ígwè n'okporo ụzọ si Netherlands. Mgbe o mechara nke anọ n'ọsọ egwuregwu amateur na 1937 UCI Road World Championships, o meriri ọla nchara na 1938 UCI Road World Championships
n'ọsọ ndị nwoke na-agba n'okporo ụzọ. Ọ bụ onye na-agba ịnyịnya ígwè ọkachamara n'etiti 1939 na 1948. N'afọ 1939, o meriri n'ọsọ Brussel-Hozémont.