| 23 jul 2026 | Alheit, Maximilian 2082 | Fadeev, Justin Michael 2145 | ½-½ | B90 Defensa Siciliana: Najdorf Variation, Adams Attack | German Amateur Chess Championship 2026 (DSAM) | Group B | 48 | Ver |
| 24 jun 2026 | Birmenko, Nikolay 2003 | Fadeev, Justin Michael 2127 | 1-0 | B36 Defensa Siciliana: Accelerated Dragon, Maróczy Bind | FIDE World Youth Chess Championships 2026 | O14 | 53 | Ver |
| 23 jun 2026 | Fadeev, Justin Michael 2127 | Ten Dam, Bram 2344 | 0-1 | B13 Defensa Caro-Kann: Exchange Variation | FIDE World Youth Chess Championships 2026 | O14 | 68 | Ver |
| 16 jun 2026 | Fadeev, Justin Michael 2127 | Jalving, August 2340 | 0-1 | C78 Apertura Española (Ruy López): Morphy Defense, Neo-Arkhangelsk Variation | FIDE World Youth Chess Championships 2026 | O14 | 30 | Ver |
| 30 may 2026 | Fadeev, Justin Michael 2095 | Allen, Phillipp 2063 | 1-0 | B41 Defensa Siciliana: Kan Variation, Maróczy Bind, Réti Variation | DEM U14 2026 | 32 | Ver |
| 29 may 2026 | Zhang, Onno 2050 | Fadeev, Justin Michael 2095 | 0-1 | B30 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack | DEM U14 2026 | 14 | Ver |
| 27 may 2026 | Fadeev, Justin Michael 2095 | Marynychenko, Yehor 2225 | 0-1 | B46 Defensa Siciliana: Taimanov Variation | DEM U14 2026 | 26 | Ver |
| 15 may 2026 | Barp, Alberto 2435 | Fadeev, Justin Michael 2095 | 1-0 | A13 Apertura Inglesa: Neo-Catalan | Rudolf Teschner Memorial 2026 | 66 | Ver |