| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. M Brodsky vs A Demchenko |
| 1-0 | 64 | 2004 | Maikop op | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 2. V Kutynec vs A Demchenko |
| 0-1 | 42 | 2008 | Alushta Tournaments | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 3. D Paravyan vs A Demchenko |
| 1-0 | 43 | 2015 | ch-RUS Rapid | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 4. S Lobanov vs A Demchenko |
| ½-½ | 77 | 2016 | Russian Championship Higher League | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 5. A Esipenko vs A Demchenko |
| 0-1 | 44 | 2016 | Russian Championship Higher League | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 6. D Andreikin vs A Demchenko |
 | 1-0 | 33 | 2016 | Abu Dhabi Masters | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 7. B Savchenko vs A Demchenko |
| ½-½ | 55 | 2016 | Philippine Open | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 8. Firouzja vs A Demchenko |
| ½-½ | 126 | 2019 | PRO League Group Stage | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
Kibitzing
