| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. K Petschar vs J Grefe |
| 0-1 | 54 | 1973 | GRE Islington Open | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 2. K Petschar vs J Klinger |
| 0-1 | 30 | 1985 | Austrian Championship | B40 Sicilian |
| 3. K Petschar vs G Miniboeck |
| 1-0 | 45 | 1985 | Austrian Championship | B90 Sicilian, Najdorf |
| 4. A Dueckstein vs K Petschar |
| ½-½ | 73 | 1985 | Austrian Championship | B02 Alekhine's Defense |
| 5. K Petschar vs L Kwatschewsky |
| ½-½ | 20 | 1985 | Austrian Championship | B56 Sicilian |
| 6. H Titz vs K Petschar |
| ½-½ | 24 | 1985 | Austrian Championship | D07 Queen's Gambit Declined, Chigorin Defense |
| 7. K Petschar vs H Baumgartner |
| 0-1 | 28 | 1985 | Austrian Championship | D33 Queen's Gambit Declined, Tarrasch |
| 8. J Poecksteiner vs K Petschar |
| ½-½ | 12 | 1985 | Austrian Championship | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 9. K Petschar vs P Roth |
| 0-1 | 31 | 1985 | Austrian Championship | C05 French, Tarrasch |
| 10. F Stoppel vs K Petschar |
| ½-½ | 15 | 1985 | Austrian Championship | A27 English, Three Knights System |
| 11. K Petschar vs H Herndl |
| 0-1 | 43 | 1985 | Austrian Championship | B05 Alekhine's Defense, Modern |
| 12. K Kargl vs K Petschar |
| ½-½ | 17 | 1985 | Austrian Championship | A04 Reti Opening |
| 13. K Petschar vs K Opl |
| 0-1 | 40 | 1985 | Austrian Championship | C77 Ruy Lopez |
| 14. W Pils vs K Petschar |
| ½-½ | 13 | 1985 | Austrian Championship | D02 Queen's Pawn Game |
| 15. K Petschar vs W Wittmann |
| ½-½ | 12 | 1985 | Austrian Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 16. A Herzog vs K Petschar |
| 0-1 | 47 | 1985 | Austrian Championship | A14 English |
| 17. K Petschar vs H Eisterer |
| 1-0 | 39 | 1987 | Austrian Championship | C92 Ruy Lopez, Closed |
| 18. U Steiner vs K Petschar |
| 0-1 | 45 | 1987 | Austrian Championship | B32 Sicilian |
| 19. K Petschar vs M Schlosser |
| ½-½ | 32 | 1987 | Austrian Championship | B08 Pirc, Classical |
| 20. H Titz vs K Petschar |
| ½-½ | 23 | 1987 | Austrian Championship | A20 English |
| 21. K Petschar vs F Hoelzl |
| 0-1 | 60 | 1987 | Austrian Championship | B83 Sicilian |
| 22. A Fauland vs K Petschar |
| ½-½ | 66 | 1987 | Austrian Championship | D02 Queen's Pawn Game |
| 23. K Petschar vs W Wittmann |
| 0-1 | 40 | 1987 | Austrian Championship | B56 Sicilian |
| 24. A Felsberger vs K Petschar |
| ½-½ | 14 | 1987 | Austrian Championship | A07 King's Indian Attack |
| 25. K Petschar vs P Roth |
| 0-1 | 38 | 1987 | Austrian Championship | C78 Ruy Lopez |
Kibitzing
