In 1910, Thys won Belgium’s first national cyclo-cross championship. The following year he won the Circuit Français Peugeot, followed by stage races from Paris to Toulouse and Paris to Turin. He then turned professional to ride the Tour de France.
Thys won the Tour de France in 1913 despite breaking his bicycle fork and needing to find a bicycle shop to mend it. The repair induced a 10-minute penalty, but he won with a lead of just under nine minutes. This took the stage and the race lead when Eugène Christophe broke his fork on the way to Luchon. Marcel Buysse overtook him in the results the following day. Another broken fork on the way to Nice gave Thys the lead again, but the drama continued when he fell on the penultimate stage from Longwy to Dunkirk. Despite being knocked out and penalized for help from teammates to repair his bike, he won 8 minutes and 37 seconds ahead of Gustave Garrigou, with Buysse third.
In 1914, he took his first stage victory, to Le Havre, holding the race from start to finish despite a 30-minute penalty for an unauthorized wheel change on the penultimate stage. His victory looked uncertain, his lead cut to less than two minutes ahead of Henri Pélissier. Ironically, on the final stage from Dunkirk to Paris, the Frenchman’s supporters along the route who were expecting a victory over the Belgian were the reason he was prevented from launching a breakaway. He won the stage, but Thys finished on his wheel to win the Tour.
In 1917, Thys won Paris–Tours and the Giro di Lombardia. In 1918, he also won the second and last Tours–Paris. After World War I, Thys won the Tour a third and final time in 1920. He led from the second stage, Henri Desgrange writing, “France is not unaware that, without the war, the crack rider from Anderlecht would be celebrating not his third Tour, but his fifth or sixth.”
Excerpt from Wikipedia