Charles Laeser was a Swiss professional road bicycle racer. Laeser entered 1903 Tour de France, the first edition of the race. He did not finish the third stage, but according to the rules then, he was still allowed to start the next stage. He started and even won the fourth stage, thus becoming the first foreign Tour de France stage winner. Laeser also entered the 1904 Tour de France, but did finish any stage. In the yellow jersey at the 1903 Tour de France after stage 4 — 1 stage, July 12 to July 12, taking it from Hippolyte Aucouturier. Wiki link