Nuno Guerreiro vs Mariano Ortega Amarelle
11th Figueira da Foz Open Figueira da Foz POR round 2.9 2017.10.30
Colle System: Rhamphorhynchus Variation 0-1

Salvador Gabriel Del Rio Angelis vs Mariano Ortega Amarelle
11th Figueira da Foz Open Figueira da Foz POR round 9.3 2017.11.05
Nimzo-Indian Defense: Normal Variation, Bronstein (Byrne) Variation 1-0

Patrick Zelbel vs Mariano Ortega Amarelle
11th Figueira da Foz Open Figueira da Foz POR round 4.4 2017.11.01
King’s Gambit 1/2-1/2

Joshua Solomon vs Mariano Ortega Amarelle
FIDE Online Olympiad Chess.com round 5 2020.07.26
Sicilian Defense: Chekhover Variation 0-1

Mariano Ortega Amarelle vs Kevin Spraggett
11th Figueira da Foz Open Figueira da Foz POR round 8.3 2017.11.04
London System: Poisoned Pawn Variation 1/2-1/2

Mariano Ortega Amarelle vs Eduardo Patricio Iturrizaga Bonelli
5th Douglas Martinez Guarenas VEN round 7.3 2012.10.29
Modern Defense: Pterodactyl Variation 0-1

Mariano Ortega Amarelle vs Jean Louis Marckens
FIDE Online Olympiad Chess.com round 6 2020.07.26
English Opening: Four Knights System, Nimzowitsch Variation 1-0

Mariano Ortega Amarelle vs Renier Vazquez Igarza
San Cristobal Venezuela VENEZUELA round 4 2012.09.27
Blumenfeld Countergambit 0-1

Mariano Ortega Amarelle vs Krzysztof Jakubowski
11th Figueira da Foz Open Figueira da Foz POR round 3.1 2017.10.31
Blumenfeld Countergambit 1/2-1/2

Mariano Ortega Amarelle vs Sergei Tiviakov
27th Carlos Torre Mem Merida MEX round 5.3 2015.12.19
Queen’s Indian Defense: Buerger Variation 1/2-1/2