| 19 jul 2026 | Preobrazhenskaya, Diana 2278 | Avinash Ramesh 2353 | 0-1 | A13 Apertura Inglesa: Agincourt Defense, Catalan Defense Accepted | SERBIA OPEN 2026 - Masters | 41 | Ver |
| 16 jul 2026 | Kaufman, David 2477 | Preobrazhenskaya, Diana 2278 | 1-0 | E03 Apertura Catalana: Open Defense | SERBIA OPEN 2026 - Masters | 50 | Ver |
| 4 jul 2026 | Oz, Ege 2120 | Preobrazhenskaya, Diana 2278 | 1-0 | B53 Defensa Siciliana: Chekhover Variation | 12th Cesme International Open Chess Tournament | 49 | Ver |
| 30 jun 2026 | Aliyev, Elnur 2108 | Preobrazhenskaya, Diana 2278 | 1-0 | E12 Defensa India de Dama: Miles Variation | 12th Cesme International Open Chess Tournament | 67 | Ver |
| 29 jun 2026 | Preobrazhenskaya, Diana 2278 | Isik, Alparslan 2442 | 0-1 | B94 Defensa Siciliana: Najdorf Variation | 12th Cesme International Open Chess Tournament | 78 | Ver |
| 20 abr 2026 | Khafizova, Diana 2093 | Preobrazhenskaya, Diana 2212 | 0-1 | E47 Defensa Nimzoindia: Normal Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | G16 | 51 | Ver |
| 20 abr 2026 | Mijic, Sara 2140 | Preobrazhenskaya, Diana 2212 | 0-1 | B53 Defensa Siciliana: Chekhover Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | G16 | 46 | Ver |
| 20 abr 2026 | Dudkina, Uliana 2242 | Preobrazhenskaya, Diana 2212 | 0-1 | E15 Defensa India de Dama: Fianchetto Variation, Nimzowitsch Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | G16 | 37 | Ver |
| 19 abr 2026 | Preobrazhenskaya, Diana 2212 | Vujovic, Vera 2156 | 1-0 | C82 Apertura Española (Ruy López): Open, St. Petersburg Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | G16 | 60 | Ver |
| 19 abr 2026 | Altynbek, Aiaru 2023 | Preobrazhenskaya, Diana 2212 | 1-0 | E32 Defensa Nimzoindia: Classical Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | G16 | 79 | Ver |
| 17 abr 2026 | Preobrazhenskaya, Diana 2212 | Iudina, Veronika 2148 | 0-1 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Blitz | G16 | 87 | Ver |
| 17 abr 2026 | Mijic, Sara 2191 | Preobrazhenskaya, Diana 2304 | 0-1 | B53 Defensa Siciliana: Chekhover Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | G16 | 59 | Ver |
| 17 abr 2026 | Olimova, Rukiya 2011 | Preobrazhenskaya, Diana 2304 | 1-0 | E04 Apertura Catalana: Open Defense | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | G16 | 45 | Ver |
| 16 abr 2026 | Preobrazhenskaya, Diana 2304 | Dudkina, Uliana 2109 | 1-0 | B13 Defensa Caro-Kann: Exchange Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | G16 | 61 | Ver |
| 16 abr 2026 | Khafizova, Diana 2234 | Preobrazhenskaya, Diana 2304 | 0-1 | E15 Defensa India de Dama: Fianchetto Variation, Check Variation, Intermezzo Line | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | G16 | 68 | Ver |
| 16 abr 2026 | Imomkuzieva, Nilufarkhon 2007 | Preobrazhenskaya, Diana 2304 | 1-0 | B53 Defensa Siciliana: Chekhover Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | G16 | 88 | Ver |
| 15 abr 2026 | Korolchuk, Vladyslava 2076 | Preobrazhenskaya, Diana 2304 | 0-1 | E04 Apertura Catalana: Open Defense | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | G16 | 41 | Ver |
| 13 abr 2026 | Preobrazhenskaya, Diana 2304 | Kaliakhmet, Elnaz 2222 | 0-1 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | G16 | 48 | Ver |
| 13 abr 2026 | Preobrazhenskaya, Diana 2304 | Iudina, Veronika 2168 | 0-1 | C78 Apertura Española (Ruy López): Morphy Defense, Neo-Arkhangelsk Variation | FIDE World Cadet & Youth Rapid and Blitz Chess Championships 2026 | Rapid | G16 | 60 | Ver |
| 8 mar 2026 | Madanasri, Gundala 2063 | Preobrazhenskaya, Diana 2251 | ½-½ | A46 Defensa India: London System | rated blitz game | 57 | Ver |