| Dec 14, 2025 | Mayeregger | 1–0 | Juarez | FINAL SUB2000 CAMPEONATO ARGENTINO DE AJEDREZ SOCIAL Y AMATEUR | Horwitz Defense | |
| Dec 13, 2025 | Mayeregger | 1–0 | Avila | FINAL SUB2000 CAMPEONATO ARGENTINO DE AJEDREZ SOCIAL Y AMATEUR | Indian Defense | |
| Dec 12, 2025 | Mayeregger | 0–1 | Taus | FINAL SUB2000 CAMPEONATO ARGENTINO DE AJEDREZ SOCIAL Y AMATEUR | Indian Defense | |
| Dec 11, 2025 | Alzugaray | 0–1 | Mayeregger | FINAL SUB2000 CAMPEONATO ARGENTINO DE AJEDREZ SOCIAL Y AMATEUR | Sicilian Defense | |
| Sep 3, 2025 | Adam | 1–0 | Mayeregger | Round 8: Adam, Ernestina - Mayeregger, Guadalupe Milagros | Sicilian Defense: Modern Variations | |
| Sep 2, 2025 | Scarsi | 1–0 | Mayeregger | Round 7: Scarsi, Anna Laura - Mayeregger, Guadalupe Milagros | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Sep 1, 2025 | Mayeregger | 1–0 | Bosco | Round 6: Mayeregger, Guadalupe Milagros - Bosco, Giuliana | Rapport-Jobava System | |
| Aug 1, 2021 | Mayeregger | 0–1 | Rodriguez Redondo | World Youth Cup 2021 O10-G18 - Girls 18 | Queen's Pawn Game: Accelerated London System | |
| Aug 1, 2021 | Mayeregger | 0–1 | Hajiyeva | World Youth Cup 2021 O10-G18 - Girls 18 | Queen's Pawn Game: Accelerated London System | |
| Aug 1, 2021 | Mayeregger | ½–½ | Noshin | World Youth Cup 2021 O10-G18 - Girls 18 | Queen's Pawn Game: Accelerated London System | |
| Aug 1, 2021 | Mayeregger | ½–½ | Callata | World Youth Cup 2021 O10-G18 - Girls 18 | Benoni Defense: Old Benoni | |
| Aug 1, 2021 | Mayeregger | 1–0 | Diaz Charpentier | World Youth Cup 2021 O10-G18 - Girls 18 | Indian Defense | |
| Aug 1, 2021 | Mary | 0–1 | Mayeregger | World Youth Cup 2021 O10-G18 - Girls 18 | Sicilian Defense: Lasker-Dunne Attack | |
| Aug 1, 2021 | Ramanayake | 0–1 | Mayeregger | World Youth Cup 2021 O10-G18 - Girls 18 | Sicilian Defense: Accelerated Dragon | |
| Aug 1, 2021 | Van Jaarsveld | 0–1 | Mayeregger | World Youth Cup 2021 O10-G18 - Girls 18 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Aug 1, 2021 | Miroshnik | 1–0 | Mayeregger | World Youth Cup 2021 O10-G18 - Girls 18 | Indian Defense: Spielmann-Indian | |
| Aug 1, 2021 | Ramallo Aguilar | 0–1 | Mayeregger | World Youth Cup 2021 O10-G18 - Girls 18 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| 2025 | Mayeregger | ½–½ | Casco | FINAL SUB2000 CAMPEONATO ARGENTINO DE AJEDREZ SOCIAL Y AMATEUR | Queen's Pawn Game | |
| — | Mayeregger | 1–0 | Quiroga Ortiz | Round 2: Mayeregger, Guadalupe Milagros - Quiroga Ortiz, Isabella | Indian Defense | |
| — | Mayeregger | 1–0 | Ramirez | Round 5: Mayeregger, Guadalupe Milagros - Ramirez, Marysol | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| — | Zuriel | 1–0 | Mayeregger | Round 1: Zuriel, Marisa - Mayeregger, Guadalupe Milagros | Sicilian Defense: Open | |
| — | Brizzi | 0–1 | Mayeregger | Round 3: Brizzi, Milagros Tatiana - Mayeregger, Guadalupe Milagros | Sicilian Defense: Old Sicilian | |
| — | Campos | 1–0 | Mayeregger | Round 4: Campos, Maria Jose - Mayeregger, Guadalupe Milagros | English Opening: Symmetrical Variation | |
