In 1980, Rüedi ascended Dhaulagiri. In 1981 he forged a new route along the North Face of the Eiger in the Bernese Alps. In 1983, together with Erhard Loretan and Jean-Claude Sonnenwyl, Rüedi managed to climb the three main summits of the Gasherbrum Group within 15 days, reaching Gasherbrum I via a standard route variation. In 1984, he reached the peaks of Manaslu and Nanga Parbat, officially climbing five eight-thousanders in only twelve months.