| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Jansa vs R Mainka |
| 1-0 | 46 |
1989 |
Bad Mergentheim | B84 Sicilian, Scheveningen |
| 2. P Haba vs R Mainka |
| 0-1 | 30 |
1990 |
Bohemians | B83 Sicilian |
| 3. Zsofia Polgar vs R Mainka |
| 0-1 | 50 |
1990 |
Dortmund (Germany) | B83 Sicilian |
| 4. N Padevsky vs R Mainka |
| 0-1 | 32 |
1991 |
Dortmund-C | B25 Sicilian, Closed |
| 5. A Daus vs R Mainka |
| 0-1 | 36 |
1998 |
26. IDS IM | B30 Sicilian |
| 6. B Trabert vs R Mainka |
| ½-½ | 60 |
1998 |
26. IDS IM | B22 Sicilian, Alapin |
| 7. N Bojkovic vs R Mainka |
| 1-0 | 57 |
1998 |
26. IDS IM | B58 Sicilian |
| 8. J Koscielski vs R Mainka |
| ½-½ | 59 |
2001 |
12th Sueder Summer | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 9. D Ciornei vs R Mainka |
| ½-½ | 43 |
2001 |
12th Sueder Summer | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 10. S Rocha vs R Mainka |
| ½-½ | 62 |
2001 |
43rd Tch-POR | B42 Sicilian, Kan |
| 11. J Koscielski vs R Mainka |
| 1-0 | 33 |
2003 |
Bad Wiessee | B42 Sicilian, Kan |
| 12. H Kummerow vs R Mainka |
| 0-1 | 39 |
2003 |
Bad Wiessee | B42 Sicilian, Kan |
| 13. T Luther vs R Mainka |
| 0-1 | 61 |
2006 |
Bad Zwesten Open | B46 Sicilian, Taimanov Variation |
| 14. S Grigoiants vs R Mainka |
| ½-½ | 21 |
2008 |
2008-2009 Bundesliga | B46 Sicilian, Taimanov Variation |
| 15. N Gouliev vs R Mainka |
| 0-1 | 90 |
2008 |
2008-2009 Bundesliga | B46 Sicilian, Taimanov Variation |
| 16. S Kraemer vs R Mainka |
| ½-½ | 40 |
2008 |
Bad Wiessee | B46 Sicilian, Taimanov Variation |
| 17. Naiditsch vs R Mainka |
| 1-0 | 34 |
2009 |
2009-2010 Bundesliga | B42 Sicilian, Kan |
| 18. De Vreugt vs R Mainka |
| 0-1 | 34 |
2009 |
2008-2009 Bundesliga | B42 Sicilian, Kan |
