Piet van Kempen
Pieter Dingeman "Piet" van Kempen was a Dutch track cyclist. Professional from 1919 to 1942 and again in the 1950s, he competed in 108 six-day races, and won 32. Due to these successes, he was regarded as one of the best six-day racers of the era, and was given the nicknames "Flying Dutchman" and "Zwarte Piet".
Six-day race wins
- 1921: New York
- 1922: Brussels
- 1923: Paris
- 1924: New York
- 1925: Brussels, Paris
- 1926: Breslau, Brussels
- 1927: Berlin
- 1928: Chicago, Stuttgart, Dortmund
- 1929: Stuttgart
- 1930: Berlin, Breslau, Brussels, Saint-Étienne, Montreal
- 1931: Breslau
- 1932: Amsterdam, Paris, Marseille, Dortmund
- 1933: Cleveland
- 1934: San Francisco, London, Minneapolis
- 1935: Kansas City and San Francisco
- 1936: Saint-Étienne
- 1937: London and Saint-Étienne