Complex sentence: Although the overall World Cup title remained elusive (largely because of skiers like Ingemar Stenmark and Klammer's concentration on the downhill), he won the World Cup downhill title 5 times--more than anyone else in the history of the sport.
Split into simpler sentences: Although the overall World Cup title remained elusive (largely because of skiers like Ingemar Stenmark and Klammer's concentration on the downhill). Klammer won the World Cup downhill title 5 times--more than anyone else in the history of the sport.