| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. R Borngaesser vs Simagin |
| ½-½ | 29 |
1966 |
? | B62 Sicilian, Richter-Rauzer |
| 2. S Fedder vs R Borngaesser |
| ½-½ | 56 |
1970 |
Groningen | A81 Dutch |
| 3. Marjanovic vs R Borngaesser |
| 0-1 | 57 |
1971 |
? | C05 French, Tarrasch |
| 4. Vaganian vs R Borngaesser |
| 1-0 | 40 |
1971 |
Athens | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 5. R Borngaesser vs Ribli |
| 1-0 | 57 |
1971 |
Athens (WchU20) | A48 King's Indian |
| 6. Miles vs R Borngaesser |
| ½-½ | 16 |
1972 |
Birmingham | A91 Dutch Defense |
| 7. A Dunkelblum vs R Borngaesser |
| ½-½ | 21 |
1972 |
Birmingham | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 8. R Borngaesser vs Bukic |
| ½-½ | 19 |
1975 |
Pula zt | A07 King's Indian Attack |
| 9. W Schmidt vs R Borngaesser |
| ½-½ | 71 |
1975 |
Pula zt | A04 Reti Opening |
| 10. J Barle vs R Borngaesser |
| 1-0 | 38 |
1975 |
Pula zt | A81 Dutch |
| 11. R Borngaesser vs L Hazai |
| 0-1 | 39 |
1975 |
Pula zt | B02 Alekhine's Defense |
| 12. A Urzica vs R Borngaesser |
| 1-0 | 37 |
1975 |
Pula zt | B45 Sicilian, Taimanov |
| 13. Ulf Andersson vs R Borngaesser |
| 1-0 | 41 |
1978 |
Dortmund | A88 Dutch, Leningrad, Main Variation with c6 |
| 14. N Gaprindashvili vs R Borngaesser |
| ½-½ | 57 |
1978 |
Dortmund (Germany) | C10 French |
| 15. R Borngaesser vs Miles |
| 0-1 | 58 |
1978 |
England 26/352 | B42 Sicilian, Kan |
| 16. R Borngaesser vs J O Fries Nielsen |
| 0-1 | 54 |
1980 |
Bundesliga | C55 Two Knights Defense |
| 17. E Anbuhl vs R Borngaesser |
| 0-1 | 32 |
1981 |
BL 8182 Solingen-Delmenhorst | C02 French, Advance |
| 18. R Borngaesser vs P Staller |
| ½-½ | 27 |
1981 |
BL 8182 Porz-Solingen | C50 Giuoco Piano |
| 19. R Borngaesser vs N Pokern |
| ½-½ | 36 |
1981 |
Bundesliga 1980/81 | C55 Two Knights Defense |
| 20. R Borngaesser vs R Senger |
| ½-½ | 41 |
1981 |
BL 8182 Solingen-D,sseldorf | C03 French, Tarrasch |
| 21. R Borngaesser vs H Ueter |
| 1-0 | 51 |
1981 |
BL 8182 Solingen-Bochum | B25 Sicilian, Closed |
| 22. R Borngaesser vs M Juergensen |
| 1-0 | 36 |
1982 |
BL 8182 Solingen-SKJE | B02 Alekhine's Defense |
| 23. H Pfleger vs R Borngaesser |
| 0-1 | 39 |
1982 |
BL 8182 Solingen-Bamberg | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 24. R Borngaesser vs R Oechslein |
| 1-0 | 33 |
1982 |
BL 8182 Solingen-Markth'feld | B40 Sicilian |
| 25. D Heinbuch vs R Borngaesser |
| ½-½ | 21 |
1982 |
Bundesliga 8283 | A86 Dutch |