| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Hertneck vs R Jaenig |
| 1-0 | 45 |
1997 |
Bayern-chI Bank Hofmann 1st | E11 Bogo-Indian Defense |
| 2. G Timoshchenko vs R Jaenig |
| 1-0 | 32 |
1998 |
Bozen op | A34 English, Symmetrical |
| 3. G Di Lazzaro vs R Jaenig |
| 0-1 | 41 |
1999 |
Seefeld op-10 | B22 Sicilian, Alapin |
| 4. Romed Kapferer vs R Jaenig |
| ½-½ | 67 |
1999 |
Seefeld op-10 | B22 Sicilian, Alapin |
| 5. R Jaenig vs J Flueckiger |
| 1-0 | 19 |
2000 |
Seefeld op-11 | B40 Sicilian |
| 6. G Weber vs R Jaenig |
| 0-1 | 24 |
2000 |
Seefeld op-11 | B40 Sicilian |
| 7. R Zelcic vs R Jaenig |
| 1-0 | 30 |
2001 |
open | B40 Sicilian |
| 8. R Jaenig vs E Djingarova |
| 0-1 | 53 |
2001 |
open | B44 Sicilian |
| 9. H Vatter vs R Jaenig |
| 1-0 | 41 |
2001 |
open | B40 Sicilian |
| 10. B Laurent vs R Jaenig |
| 1-0 | 55 |
2001 |
open | B40 Sicilian |
| 11. R Mainka vs R Jaenig |
| 1-0 | 42 |
2001 |
open | B40 Sicilian |
| 12. A Ristic vs R Jaenig |
| ½-½ | 13 |
2001 |
open | B40 Sicilian |
| 13. Eingorn vs R Jaenig |
 | 1-0 | 32 |
2001 |
5th OIBM | A43 Old Benoni |
| 14. G Sarthou vs R Jaenig |
| 1-0 | 39 |
2001 |
open | A43 Old Benoni |
| 15. R Jaenig vs Schmaltz |
| 0-1 | 38 |
2003 |
Bad Wiessee | B84 Sicilian, Scheveningen |
| 16. R Jaenig vs A Rotstein |
| 0-1 | 27 |
2003 |
Bad Wiessee | B41 Sicilian, Kan |
| 17. T Wippermann vs R Jaenig |
 | 0-1 | 40 |
2007 |
European Individual Championships | B40 Sicilian |
| 18. R Jaenig vs V Startsev |
| ½-½ | 66 |
2007 |
European Individual Championships | B61 Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2 |
| 19. E Schnoor vs R Jaenig |
| ½-½ | 16 |
2007 |
European Individual Championships | B42 Sicilian, Kan |
| 20. R Jaenig vs I Loktiev |
| 0-1 | 33 |
2007 |
7th European Senior Championship | B41 Sicilian, Kan |
| 21. R Jaenig vs Winants |
| 0-1 | 20 |
2007 |
European Individual Championships | C68 Ruy Lopez, Exchange |
| 22. M Schulz vs R Jaenig |
| ½-½ | 33 |
2007 |
European Individual Championships | D00 Queen's Pawn Game |
| 23. R Jaenig vs Y Ajrapetjan |
| ½-½ | 32 |
2007 |
? | B06 Robatsch |
| 24. R Jaenig vs T Paehtz Jr |
 | 0-1 | 27 |
2007 |
European Individual Championships | C03 French, Tarrasch |
| 25. R Jaenig vs E Rotstein |
| 0-1 | 51 |
2007 |
7th European Senior Championship | B84 Sicilian, Scheveningen |