| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. V Gashimov vs S Halkias |
| ½-½ | 61 |
2007 |
European Individual Championships | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 2. J Meister vs S Halkias |
| ½-½ | 48 |
2007 |
BL 0708 SK Zehlendorf - SF Katernberg | C73 Ruy Lopez, Modern Steinitz Defense |
| 3. A Timofeev vs S Halkias |
 | 1-0 | 41 |
2007 |
European Individual Championships | C78 Ruy Lopez |
| 4. Sedlak vs S Halkias |
| ½-½ | 18 |
2007 |
6th Aeroflot Festival | C77 Ruy Lopez |
| 5. A Kovacevic vs S Halkias |
| ½-½ | 51 |
2008 |
XV Bora Kostic Memorial | C61 Ruy Lopez, Bird's Defense |
| 6. J Radulski vs S Halkias |
| 1-0 | 84 |
2008 |
European Individual Championship | C74 Ruy Lopez, Modern Steinitz Defense |
| 7. I Chirila vs S Halkias |
| 0-1 | 43 |
2008 |
European Individual Championship | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 8. A Brkic vs S Halkias |
| ½-½ | 25 |
2008 |
European Individual Championship | C78 Ruy Lopez |
| 9. J M Lopez-Martinez vs S Halkias |
| ½-½ | 99 |
2009 |
17th European Team Championship | C78 Ruy Lopez |
| 10. I Chirila vs S Halkias |
| ½-½ | 44 |
2009 |
10th European Individual Championship | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 11. P Anisimov vs S Halkias |
| 1-0 | 25 |
2009 |
10th European Individual Championship | C78 Ruy Lopez |
| 12. D Swiercz vs S Halkias |
| ½-½ | 90 |
2009 |
10th European Individual Championship | C78 Ruy Lopez |