| Apr 19, 2026 | KONSTANTINA VERTOUDOU | ½–½ | Kougioumtzoglou | Round 8: KONSTANTINA VERTOUDOU - Kougioumtzoglou, Margarita | Pirc Defense: Classical Variation, Quiet System, Parma Defense | |
| Apr 15, 2026 | Kouvedaki | 1–0 | Kougioumtzoglou | Round 3: Kouvedaki, Rafaela - Kougioumtzoglou, Margarita | Pirc Defense | |
| Apr 8, 2026 | Kougioumtzoglou | ½–½ | Tzima | Round 7: Kougioumtzoglou, Margarita - Tzima, Aikaterini | Queen's Pawn Game: Colle System | |
| Apr 8, 2026 | Kougioumtzoglou | 1–0 | Tafaki | Round 6: Kougioumtzoglou, Margarita - Tafaki, Despoina Theocharia | Rubinstein Opening | |
| Mar 14, 2026 | Kougioumtzoglou | 0–1 | Kasmeridis | Round 8: Kougioumtzoglou, Margarita - Kasmeridis, Orfeas | Queen's Pawn Game: Colle System | |
| Mar 14, 2026 | Kourkoutas | 0–1 | Kougioumtzoglou | Round 7: Kourkoutas, Michail - Kougioumtzoglou, Margarita | Pirc Defense | |
| Mar 14, 2026 | Kougioumtzoglou | 1–0 | Kourkoutas | Round 6: Kougioumtzoglou, Margarita - Kourkoutas, Evangelos | Queen's Pawn Game: Colle System | |
| Mar 14, 2026 | Tsolampouni | ½–½ | Kougioumtzoglou | Round 5: Tsolampouni, Vasiliki - Kougioumtzoglou, Margarita | Pirc Defense: Classical Variation | |
| Mar 14, 2026 | Kougioumtzoglou | ½–½ | Stefanidis | Round 4: Kougioumtzoglou, Margarita - Stefanidis, Konstantinos | Queen's Pawn Game: Colle System | |
| Mar 14, 2026 | Yibo Weng | 0–1 | Kougioumtzoglou | Round 3: Yibo Weng - Kougioumtzoglou, Margarita | King's Pawn Game: Wayward Queen Attack | |
| Mar 14, 2026 | Kougioumtzoglou | 1–0 | Goulas | Round 2: Kougioumtzoglou, Margarita - Goulas, Christos Ioannis | Queen's Pawn Game: Chigorin Variation | |
| Mar 14, 2026 | Aliki Maria Korai | 0–1 | Kougioumtzoglou | Round 1: Aliki Maria Korai - Kougioumtzoglou, Margarita | King's Pawn Game: Leonardis Variation | |
| Jul 10, 2025 | Kougioumtzoglou | 0–1 | Kouvedaki | Round 5: Kougioumtzoglou, Margarita - Kouvedaki, Rafaela | French Defense: Chigorin Variation | |
| Jul 7, 2025 | Afantiti | 0–1 | Kougioumtzoglou | Round 2: Afantiti, Stavroula Chrysovalanto - Kougioumtzoglou, Margarita | Rapport-Jobava System | |
| Jul 6, 2025 | Kougioumtzoglou | 1–0 | Gagani | Round 3: Kougioumtzoglou, Margarita - Gagani, Elli | French Defense: Exchange Variation | |
| Jul 6, 2025 | Antonaki | 1–0 | Kougioumtzoglou | Round 4: Antonaki, Athina - Kougioumtzoglou, Margarita | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 22, 2025 | Kougioumtzoglou | ½–½ | Orpheas Kasmeridis | Round 8: Kougioumtzoglou, Margarita - Orpheas Kasmeridis | French Defense: Exchange Variation | |
| Mar 22, 2025 | Mihail Kourkoutas | 0–1 | Kougioumtzoglou | Round 7: Mihail Kourkoutas - Kougioumtzoglou, Margarita | Ruy Lopez: Bird Variation | |
| Mar 22, 2025 | Argyropoulos | ½–½ | Kougioumtzoglou | Round 3: Argyropoulos, Alexandros - Kougioumtzoglou, Margarita | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Mar 22, 2025 | Kokolakis | ½–½ | Kougioumtzoglou | Round 5: Kokolakis, Dimitrios - Kougioumtzoglou, Margarita | Ruy Lopez: Bird Variation | |
| Jun 27, 2024 | Mamoulaki | * | Kougioumtzoglou | Round 6: Mamoulaki, Maria Anastasia - Kougioumtzoglou, Margarita | ? | |
| Jun 26, 2024 | Kougioumtzoglou | 0–1 | Sgourou | Round 5: Kougioumtzoglou, Margarita - Sgourou, Anna | Caro-Kann Defense: Exchange Variation | |
| Jun 25, 2024 | Vertoudou | * | Kougioumtzoglou | Round 4: Vertoudou, Georgia - Kougioumtzoglou, Margarita | ? | |
| Jun 24, 2024 | Kougioumtzoglou | * | Vertoudou | Round 3: Kougioumtzoglou, Margarita - Vertoudou, Konstantina | ? | |
| Jun 23, 2024 | Skarla | * | Kougioumtzoglou | Round 2: Skarla, Maria Eleni - Kougioumtzoglou, Margarita | ? | |
| Jun 21, 2024 | Kougioumtzoglou | 1–0 | Kouvedaki | Round 7: Kougioumtzoglou, Margarita - Kouvedaki, Rafaela | French Defense: Exchange Variation | |
| — | Antoniou Tragoudas | 1–0 | Kougioumtzoglou | Round 2: Antoniou Tragoudas, Ioannis - Kougioumtzoglou, Margarita | English Opening: Anglo-Indian Defense | |
