Antonio Ando had the following podium finishes at major championships: 1st in the 1951 Pan American Games army rifle 3 positions team (with David Schiaffino, Pablo Cagnasso, Abel Ortíz, and the non-Olympian Ramón Hagen), 1st in the 1951 Pan American Games army rifle standing team (with Ricardo Grimau, Pablo Cagnasso, and the non-Olympians Claudio Cabrera and Ramón Hagen), 2nd in the 1951 Pan American Games army rifle 3 positions, 2nd in the 1951 Pan American Games army rifle standing, 2nd in the 1955 Pan American Games 50 m rifle 3 positions team (with Pedro Armella and the non-Olympians Máximo Lagarejos, Ramón Hagen, and Oscar Olmos).