Kaiser wrote a sports story of speed skating that promised the land of tulips. In 1967, she was the first Dutchwoman to win the world title all around, and a year later she defended it. In 1972, he won gold in the 3,000-meter race at the Sapporo Winter Olympics, finishing second in the middle of the road.
He set a total of nine world records and dominated the world rankings for 1126 long days.