Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. H Preker vs R Keller |
| 1-0 | 34 | 1982 | Lugano op | B30 Sicilian |
2. R Keller vs L Brunner |
| 0-1 | 48 | 1988 | Zuerich op | C16 French, Winawer |
3. R Keller vs D Lutz |
| 1-0 | 42 | 1988 | Zuerich op | C18 French, Winawer |
4. J Klinger vs R Keller |
| 1-0 | 32 | 1988 | Zuerich op | A07 King's Indian Attack |
5. Z Novoselski vs R Keller |
| 1-0 | 36 | 1988 | Zuerich op | B06 Robatsch |
6. R Keller vs P Mumenthaler |
| 1-0 | 38 | 1989 | Mendrisio op | A41 Queen's Pawn Game (with ...d6) |
7. R Keller vs R Ekstrom |
| 0-1 | 30 | 1989 | Mendrisio op | A46 Queen's Pawn Game |
8. R Keller vs R Neyer |
| ½-½ | 34 | 1989 | Mendrisio op | D03 Torre Attack (Tartakower Variation) |
9. R Keller vs L Carparelli |
| ½-½ | 47 | 1989 | Mendrisio op | A48 King's Indian |
10. R Keller vs S Sarno |
| ½-½ | 34 | 1989 | Lugano op | B09 Pirc, Austrian Attack |
11. R Keller vs A von Gleich |
| 0-1 | 34 | 1989 | Lugano op | A45 Queen's Pawn Game |
12. R Keller vs L B Rasmussen |
| ½-½ | 16 | 1989 | Lugano op | B06 Robatsch |
13. W Trumpf vs R Keller |
| 1-0 | 30 | 1989 | Mendrisio op | A56 Benoni Defense |
14. Paolo Rezzonico vs R Keller |
| ½-½ | 30 | 1989 | Mendrisio op | B22 Sicilian, Alapin |
15. F Mora vs R Keller |
| 1-0 | 53 | 1989 | Lugano op | B09 Pirc, Austrian Attack |
16. V Zorman vs R Keller |
| ½-½ | 45 | 1989 | Lugano op | B31 Sicilian, Rossolimo Variation |
17. C Pantaleoni vs R Keller |
| 1-0 | 46 | 1989 | Lugano op | A25 English |
18. S Georges vs R Keller |
| ½-½ | 8 | 1989 | Lugano op | A88 Dutch, Leningrad, Main Variation with c6 |
19. Ftacnik vs R Keller |
| ½-½ | 51 | 1989 | Lugano Open | A88 Dutch, Leningrad, Main Variation with c6 |
20. R Keller vs Larsen |
| 0-1 | 21 | 1989 | Lugano Open | C16 French, Winawer |
21. R Keller vs G Barbero |
| ½-½ | 80 | 1994 | Lenk | A48 King's Indian |
22. R Keller vs J Kluegel |
| 0-1 | 64 | 1994 | Lenk op | D02 Queen's Pawn Game |
23. R Keller vs E Lang |
| 1-0 | 8 | 1994 | Lenk op | A28 English |
24. T Horvath vs R Keller |
| 1-0 | 19 | 1994 | Lenk op | B30 Sicilian |
25. B Javet vs R Keller |
| 0-1 | 36 | 1994 | Lenk op | B33 Sicilian |