| 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. B Laurent vs R Jaenig |
| 1-0 | 55 |
2001 |
open | B40 Sicilian |
| 4. Eingorn vs R Jaenig |
 | 1-0 | 32 |
2001 |
5th OIBM | A43 Old Benoni |
| 5. G Sarthou vs R Jaenig |
| 1-0 | 39 |
2001 |
open | A43 Old Benoni |
| 6. R Zelcic vs R Jaenig |
| 1-0 | 30 |
2001 |
open | B40 Sicilian |
| 7. H Vatter vs R Jaenig |
| 1-0 | 41 |
2001 |
open | B40 Sicilian |
| 8. R Jaenig vs E Djingarova |
| 0-1 | 53 |
2001 |
open | B44 Sicilian |
| 9. R Mainka vs R Jaenig |
| 1-0 | 42 |
2001 |
open | B40 Sicilian |
| 10. R Jaenig vs A Rotstein |
| 0-1 | 27 |
2003 |
Bad Wiessee | B41 Sicilian, Kan |
| 11. R Jaenig vs Schmaltz |
| 0-1 | 38 |
2003 |
Bad Wiessee | B84 Sicilian, Scheveningen |
| 12. R Jaenig vs T Paehtz Jr |
 | 0-1 | 27 |
2007 |
European Individual Championships | C03 French, Tarrasch |
| 13. R Jaenig vs G Rohit |
| 0-1 | 30 |
2007 |
? | B28 Sicilian, O'Kelly Variation |
| 14. V Bach vs R Jaenig |
| 1-0 | 18 |
2007 |
European Individual Championships | B40 Sicilian |
| 15. R Jaenig vs I Loktiev |
| 0-1 | 33 |
2007 |
7th European Senior Championship | B41 Sicilian, Kan |
| 16. R Jaenig vs S Siebrecht |
| 0-1 | 38 |
2007 |
European Individual Championships | B42 Sicilian, Kan |
| 17. R Jaenig vs E Rotstein |
| 0-1 | 51 |
2007 |
7th European Senior Championship | B84 Sicilian, Scheveningen |
| 18. R Jaenig vs Winants |
| 0-1 | 20 |
2007 |
European Individual Championships | C68 Ruy Lopez, Exchange |
| 19. G Lorscheid vs R Jaenig |
| 1-0 | 31 |
2007 |
European Individual Championships | D30 Queen's Gambit Declined |
| 20. B Michiels vs R Jaenig |
| 1-0 | 49 |
2007 |
? | B41 Sicilian, Kan |
| 21. R Jaenig vs H Reefschlaeger |
| 0-1 | 22 |
2008 |
Bad Wiessee | D47 Queen's Gambit Declined Semi-Slav |
| 22. R Jaenig vs M Llaneza-Vega |
| 0-1 | 28 |
2008 |
Bad Wiessee | B13 Caro-Kann, Exchange |