Many of the Swiss winners at this time never went on to win another major race but two of Switzerland’s greatest riders Ferdinand Kübler (1943) and Hugo Koblet (1952 and 1954) were triumphant at Zürich in this era, another Swiss Henri Suter set the record for the most victories at six between 1919 and 1929. After 1956 the race winners have become more international with only five Swiss winners in this period compared to 15 victories for Italy and 13 for Belgium. The quality of the race winners has been very high with classic specialists such as Paolo Bettini, Francesco Moser, Roger De Vlaeminck, Freddy Maertens, Giuseppe Saronni and Johan Museeuw all winning while the switch to an August date in 1988 allowed Tour de France riders such as Lance Armstrong, Jan Ullrich and Laurent Dufaux to do well in the race.