He has been one of the main athletes of the "Nazionale Sport Disabili" (Disabled Italian National Team) for archery, and shooting.

In 2000, after winning the Team Gold Medal at the Paralympics, he's been decorated with the title of commendatore of the Italian Republic, while the CONI gave him their highest honorary medal, the "collare d'oro" (literally, the golden collar).

On the occasion of the journey of the Olympic Flame of Turin 2006, Oscar has been chosen as the last torch-bearer of Belluno's leg, and he lighted up the tripod in the city's main plaza.

He represented Italy at the Paralympic Games in Barcelona (1992), Atlanta (1996), Sydney (2000), Athens (2004), Beijing, (2008) and London (2012), for a total of 6 editions.

In 2009 he won a Guinness World Record together with Marco Vitale and Alberto Simonelli, shooting light bulbs.