| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. R Naranja vs K Janetschek |
| 1-0 | 39 |
1960 |
Leipzig ol (Men) qual-B | A16 English |
| 2. K Janetschek vs Filip |
| ½-½ | 30 |
1967 |
EU-chT preliminary | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 3. Filip vs K Janetschek |
| 1-0 | 42 |
1967 |
EU-chT preliminary | D55 Queen's Gambit Declined |
| 4. R Toran Albero vs K Janetschek |
| 1-0 | 41 |
1968 |
Bad Aibling | A80 Dutch |
| 5. M J Freeman vs K Janetschek |
| ½-½ | 46 |
1968 |
Olympiade | E30 Nimzo-Indian, Leningrad |
| 6. B Kerr vs K Janetschek |
| ½-½ | 24 |
1970 |
Siegen ol (Men) qual-F | C44 King's Pawn Game |
| 7. K Janetschek vs I Asmundsson |
| ½-½ | 37 |
1974 |
Nice ol (Men) fin-B | B03 Alekhine's Defense |
| 8. Keene vs K Janetschek |
 | 1-0 | 26 |
1975 |
Zonal Tournament | A06 Reti Opening |
| 9. K Janetschek vs Larsen |
| 0-1 | 56 |
1977 |
Clare Benedict Cup | B01 Scandinavian |
| 10. K Janetschek vs Ulf Andersson |
| 0-1 | 47 |
1977 |
Copenhagen | B49 Sicilian, Taimanov Variation |
| 11. B Perenyi vs K Janetschek |
| 0-1 | 41 |
1979 |
Kecskemet | C92 Ruy Lopez, Closed |
| 12. H Messing vs K Janetschek |
| 1-0 | 44 |
1979 |
Mitropa Cup | C45 Scotch Game |
| 13. K Janetschek vs Gligoric |
| ½-½ | 43 |
1980 |
Baden | B80 Sicilian, Scheveningen |
| 14. Adorjan vs K Janetschek |
| ½-½ | 16 |
1980 |
It (cat.12) | B08 Pirc, Classical |
| 15. Vaganian vs K Janetschek |
| 1-0 | 31 |
1980 |
Baden-Baden | E12 Queen's Indian |
| 16. Spassky vs K Janetschek |
| 1-0 | 44 |
1980 |
It ( cat. 12 ) | C98 Ruy Lopez, Closed, Chigorin |
| 17. K Janetschek vs Smejkal |
| 0-1 | 62 |
1980 |
Baden | B42 Sicilian, Kan |
| 18. Nunn vs K Janetschek |
| 1-0 | 30 |
1980 |
Baden-Baden | C24 Bishop's Opening |
| 19. Miles vs K Janetschek |
| 1-0 | 56 |
1980 |
Baden-Baden | E00 Queen's Pawn Game |
| 20. K Janetschek vs Van der Wiel |
| 0-1 | 40 |
1980 |
Baden-Baden | B33 Sicilian |
| 21. Plachetka vs K Janetschek |
| 1-0 | 48 |
1983 |
Tatran Cup | A40 Queen's Pawn Game |
| 22. K Janetschek vs Ftacnik |
| 1-0 | 50 |
1986 |
Vienna | B95 Sicilian, Najdorf, 6...e6 |
| 23. R Lendwai vs K Janetschek |
| ½-½ | 39 |
1989 |
Bundesliga | C25 Vienna |
| 24. Leko vs K Janetschek |
| ½-½ | 68 |
1991 |
Ostrig | B82 Sicilian, Scheveningen |
| 25. Barbero vs K Janetschek |
| ½-½ | 94 |
1992 |
Staatsliga | E65 King's Indian, Fianchetto, Yugoslav, 7.O-O |