Juan Facundo Pierrot vs Mario Nicolas Villanueva
79th Argentine Championship Buenos Aires ARG round 1 2004.09.24
Sicilian Defense: Dragon Variation, Yugoslav Attack 1-0

Ni Hua vs Mario Nicolas Villanueva
Pro Chess League chess.com INT round 4 2018.02.03
Amazon Attack: Siberian Attack 1-0

Tigran Levonovich Petrosian vs Mario Nicolas Villanueva
Pro Chess League chess.com INT round 4 2018.02.03
English Opening: Anglo-Indian Defense, Grünfeld Formation 1-0