Vervaecke drove as a professional from 1924 to 1936, initially as an independent driver and from 1926 for various French racing teams such as Peugeot, Armor and Alcyon. In 1925 and 1926 he won the Circuit Franco-Belge twice in a row . In 1927 he won a stage in the Tour de France and finished third in the final standings. In the following years he was able to place three more times on one of the top ten ranks of the tour. In 1930 he won the classic Paris – Roubaix and in 1932 Paris – Brussels .
In 1940 Vervaecke owned a restaurant in Menen near the French border. When the German Wehrmacht invaded Belgium , Vervaecke fought against the fact that soldiers from a retreating squad of Polish soldiers assigned to the British army devastated his household effects. He was forcibly abducted by soldiers on May 24, 1940 and probably murdered the next day. His body was only found weeks later in Roncq on the French side of the border riddled with bullets. This place is usually given as the place where he died. The exact date of his death has never been determined.
Vervaeckes younger brother Félicien was also known as a cyclist.
