Marco Galli was born in Civitaveccia in 1957. He played for SNC Chivitavecchia from 1972 until 1987, with exception the period 1981-1984 when he moved to Pro-Recco. With Pro-Recco he won the 1982 and 1983 National Champinship and in 1983 the European Cup for Champions. Marco Galli has been selected for the first time to the Italian National team in 1977 and was member of the Golden Italian team in Berlin 1978 World Championships. He was indispensable member of the Italian team up to Los Angeles 1984 Olympic Games.
Marco Galli passed away prematurely in 1988.