| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. S Collas vs M Roiz |
| 0-1 | 42 |
2002 |
Valle d'Aosta op 10th | B42 Sicilian, Kan |
| 2. S Collas vs A Zatonskih |
 | ½-½ | 14 |
2004 |
36th Olympiad, Women | D37 Queen's Gambit Declined |
| 3. Zhao Xue vs S Collas |
| 1-0 | 55 |
2004 |
36th Olympiad, Women | D45 Queen's Gambit Declined Semi-Slav |
| 4. Lahno vs S Collas |
| ½-½ | 39 |
2004 |
36th Olympiad | C41 Philidor Defense |
| 5. Y Ankudinova vs S Collas |
| 0-1 | 32 |
2004 |
36th Olympiad, Women | A10 English |
| 6. S Collas vs S Sommer |
| 1-0 | 35 |
2004 |
36th Olympiad, Women | D11 Queen's Gambit Declined Slav |
| 7. S Collas vs D Svetushkin |
| 0-1 | 30 |
2005 |
Metz Open | D15 Queen's Gambit Declined Slav |
| 8. E Danielian vs S Collas |
| ½-½ | 51 |
2005 |
6th European Individual Women's Championship | B14 Caro-Kann, Panov-Botvinnik Attack |
| 9. C Flear vs S Collas |
| 0-1 | 40 |
2005 |
French Championship (women) | E39 Nimzo-Indian, Classical, Pirc Variation |
| 10. A Skripchenko vs S Collas |
| ½-½ | 12 |
2005 |
French Championship (women) | D10 Queen's Gambit Declined Slav |
| 11. V Chulivska vs S Collas |
| ½-½ | 30 |
2005 |
6th European Individual Women's Championship | B20 Sicilian |
| 12. E Danielian vs S Collas |
| ½-½ | 56 |
2005 |
6th European Individual Women's Championship Bronze | D38 Queen's Gambit Declined, Ragozin Variation |
| 13. S Fruteau vs S Collas |
| ½-½ | 41 |
2005 |
French Championship (women) | B84 Sicilian, Scheveningen |
| 14. S Collas vs K Spraggett |
| 0-1 | 36 |
2005 |
Metz Open | A30 English, Symmetrical |
| 15. S Collas vs Khurtsidze |
| ½-½ | 48 |
2005 |
6th European Individual Women's Championship | A30 English, Symmetrical |
| 16. S Collas vs C Cochet |
| ½-½ | 57 |
2005 |
French Championship (women) | B36 Sicilian, Accelerated Fianchetto |
| 17. S Collas vs N Benmesbah |
| ½-½ | 41 |
2005 |
French Championship (women) | A46 Queen's Pawn Game |
| 18. S Collas vs C Gheorghe |
| ½-½ | 38 |
2005 |
6th European Individual Women's Championship | D27 Queen's Gambit Accepted, Classical |
| 19. E Zaiatz vs S Collas |
| ½-½ | 7 |
2005 |
6th European Individual Women's Championship | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 20. S Collas vs F W Armas |
| 1-0 | 36 |
2005 |
French Championship (women) | A35 English, Symmetrical |
| 21. S Collas vs A Mirzoev |
| ½-½ | 55 |
2005 |
Salou Open | D15 Queen's Gambit Declined Slav |
| 22. S Collas vs T Kosintseva |
| 1-0 | 48 |
2005 |
6th European Individual Women's Championship | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 23. S Del Rio Angelis vs S Collas |
| 1-0 | 33 |
2005 |
VII Open | E43 Nimzo-Indian, Fischer Variation |
| 24. S Collas vs Y Dembo |
 | 0-1 | 29 |
2005 |
6th European Individual Women's Championship Bronze | E97 King's Indian |
| 25. S Collas vs M Leconte |
| ½-½ | 45 |
2005 |
French Championship (women) | B39 Sicilian, Accelerated Fianchetto, Breyer Variation |