Italian bobsledder remembered as much for his sportsmanship as for his athletic prowess. Monti was the preeminent bobsled driver in the world from 1957 through 1968. Excelling in both two-man and four-man sledding, he won 11 world championships. Of his world championships, 8 were in two-man sledding (1957–61, 1963, 1966, and 1968); the remaining were in the four-man competition (1960, 1961, and 1968).

Monti's first Olympic effort in the two-man bobsled resulted in a second-place finish at the 1956 Games in Cortina d'Ampezzo, Italy. At the 1964 Games in Innsbruck, Austria, Monti and his partner Sergio Siorpaes were the defending world champions and found themselves in heated competition with the British team of Anthony Nash and Robin Dixon. When a faulty axle on the British sled was sure to lead to their withdrawal, Monti took a part from his own sled and allowed Nash and Dixon to use it on theirs. The British team went on to take the gold medal; the Italians took the bronze.

Monti capped off a tremendous 1968 season with an Olympic gold medal in the two-man bobsled. Tying with the Germans at the end of the competition, Monti and his brakeman Luciano De Paolis were awarded the gold, based on having run the single fastest heat. Monti's success at the Olympics extended to the four-man bobsled as well, where he placed second, third, and first in the 1956, 1964, and 1968 Games, respectively. Monti was prevented from competing in the 1960 Winter Games when organizers in Squaw Valley, California, chose not to build a bobsled venue due to time and financial constraints.