Alfred Jacomis was an early pioneer of cross-country skiing in France. In the winter Jacomis worked on a farm where he would travel across the countryside on skis, often carrying up to 30 litres of milk on his back. In the late 1920s he joined his local ski club where he soon won his first competition. In the 1930s he took part in the French championships in addition to completing his military service on the Alpine mountains. By 1935 he had become a member of the French Olympic team and was selected to compete at the 1936 Garmisch-Partenkirchen Games. Jacomis finished ninth in the 4 × 10 kilometres relay and 43rd in the 18 kilometres event. After the Olympics he became the 18 km champion of the Pyrenees, the French champion in the 32 km event, and the runner-up in the 18 km race at the national championships. Despite the war ending his career, Jacomis did return to the slopes to compete at the French championships in 1948.