Airoldi was born in Origgio, near Saronno. He competed in sporting contests in the Varese. Later, he competed at the national and international level. In 1892, he won the Lecco-Milano and the Milano-Torino. He became famous very quickly. He was one of the best marathon runners of his time. In September 1895, he won the Milano-Barcellona marathon. He won 2000 pesetas for his victory.