Rubuta ci gaba don wannan sakin layi - Christiane Knacke (daga baya Driesener sannan Sommer, an haife shi a ranar 17 ga Afrilu 1962) 'yar wasan tseren ruwa ce mai ritaya daga Gabashin Jamus wacce ta kware a tseren lu'ulu'u na mita 100. A cikin wannan taron ta lashe lambar azurfa a gasar zakarun Turai ta 1977
da kuma lambar tagulla a gasar Olympics ta 1980. Ita ce mace ta farko da ta karya shingen minti daya a cikin taron, lokacin da ta yi 59.78 a ranar 28 ga Agusta 1977, ta kafa sabon tarihin duniya.