Hector Luis Gradassi was one of the great stars of Argentine Motorsport in the 1960s and 1970s, never the less he never achieved the fame that perhaps he should.
He started racing in 1964 and in 1967 he made his debut in Turismo Carretera, winning his very first race in San Pedro. That year he also raced in the Mecánica Nacional Fórmula Uno, the Argentine F1 championship finishing 7th overall in the title driving a Maserati with a AMC Tornado V8 winning the round at Rafaela.
He won the Turismo Carretera Championship in 1972, 1974, 1975 and 1976 always driving a Ford Falcon. Plus he was runner-up in 1967, 1973, 1977 and 1978.
He also drove sports cars and in 1972 he drove a Lola T212 Ford with Emilio Bertolini in the Buenos Aires 1000 Kilometres finishing 14th overall.
In his 15 year career, he participated in 244 races, winning 49 times.
Later on after he quit driving, he suffered from hemiplegia, a condition where there is paralysis in down one side of the body. This affected his left side but still did not lessen his enthusiasm for the sport.