Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. J Aijala vs S Kosmo |
| 1-0 | 33 | 2000 | Lahti We LahS op | B99 Sicilian, Najdorf, 7...Be7 Main line |
2. M Nouro vs S Kosmo |
| 1-0 | 22 | 2000 | Jyvaskyla op 10th | B81 Sicilian, Scheveningen, Keres Attack |
3. S Kosmo vs D Smerdon |
| 0-1 | 23 | 2002 | World Junior Championship | B01 Scandinavian |
4. A Greenfeld vs S Kosmo |
 | 1-0 | 31 | 2003 | 19 ECC Men | A30 English, Symmetrical |
5. T Penttila vs S Kosmo |
| ½-½ | 37 | 2003 | Rilton Cup 2003/04 | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
6. J O Fries-Nielsen vs S Kosmo |
| 1-0 | 28 | 2003 | Rilton Cup 2003/04 | A46 Queen's Pawn Game |
7. V Poley vs S Kosmo |
| 1-0 | 39 | 2003 | Rilton Cup 2003/04 | A00 Uncommon Opening |
8. S Kosmo vs D Lardot |
| 1-0 | 35 | 2004 | Rilton Cup 2003/04 | A74 Benoni, Classical, 9...a6, 10.a4 |
9. T Bromann vs S Kosmo |
| 1-0 | 37 | 2004 | Rilton Cup 2003/04 | A20 English |
10. S Kosmo vs J Ask |
| 1-0 | 17 | 2004 | Rilton Cup 2003/04 | B96 Sicilian, Najdorf |
11. F Andersson vs S Kosmo |
| 1-0 | 33 | 2004 | Rilton Cup 2003/04 | B23 Sicilian, Closed |
12. S Kosmo vs P Laihonen |
| 0-1 | 38 | 2004 | TCh-FIN 2003-4 | B02 Alekhine's Defense |
13. S Kosmo vs K Sorri |
| 0-1 | 38 | 2005 | FIN-chT 0405 | C36 King's Gambit Accepted, Abbazia Defense |
14. S Kosmo vs D Berczes |
| 1-0 | 30 | 2005 | Rilton Cup 2005/06 | B99 Sicilian, Najdorf, 7...Be7 Main line |
15. P Cramling vs S Kosmo |
| 1-0 | 23 | 2005 | Rilton Cup 2005/06 | A70 Benoni, Classical with 7.Nf3 |
16. S Kosmo vs I Khmelniker |
| 0-1 | 30 | 2005 | Rilton Cup 2005/06 | C48 Four Knights |
17. S Kosmo vs T Willemze |
| 0-1 | 28 | 2006 | Rilton Cup 2005/06 | B10 Caro-Kann |
18. S Marder vs S Kosmo |
| 0-1 | 59 | 2006 | Rilton Cup 2005/06 | C11 French |
19. S Kosmo vs E Solozhenkin |
| 0-1 | 35 | 2006 | Heart of Finland op 16th | C49 Four Knights |
20. M Novik vs S Kosmo |
| ½-½ | 46 | 2006 | Heart of Finland op 16th | B40 Sicilian |
21. S Kosmo vs T Sammalvuo |
| 0-1 | 32 | 2006 | Heart of Finland op 16th | C95 Ruy Lopez, Closed, Breyer |
22. S Kosmo vs P Tregubov |
| 0-1 | 39 | 2006 | European Club Cup | B40 Sicilian |
23. S Kosmo vs J S White |
| 1-0 | 59 | 2006 | European Club Cup | B46 Sicilian, Taimanov Variation |
24. S Kosmo vs P Rewitz |
 | 0-1 | 24 | 2006 | European Club Cup | B06 Robatsch |
25. S Kosmo vs G Gaertner |
| ½-½ | 40 | 2006 | European Club Cup | E54 Nimzo-Indian, 4.e3, Gligoric System |