In 1953, Obras won the Unión de Rugby de Buenos Aires (URBA) championship, which is its only title to date. For that tournament, Obras formed a squad that was a mixture of experienced players, along with young talents that had won the reserves championship two years before, with 8 players being promoted to the senior team. During the tournament, Obras Sanitarias only lost one match (versus Hindú by a score of 11–3). In the penultimate round of the tournament, when Obras beat Pucará, by a score of 5–0, with a try conversion by Alberto Dramis.