Dee ihe ga-aga n'ihu na paragraf a - Ralph Näf (amụrụ 10 Mee 1980) bụ onye Switzerland na-agba ịnyịnya ígwè ugwu na-agafe mba. Na 2004 Summer Olympics, ọ gbara asọmpi na ụmụ nwoke cross-mba, na-agwụ na 6th ebe. N'egwuregwu Olimpik nke afọ 2012, ọ zọrọ asọmpi n'egwuregwu Cross-country nke ụmụ nwoke
na Hadleigh Farm, na-agwụ na 18th ebe.