| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. O Wegener vs U Jost |
 | 1-0 | 41 |
1999 |
VK Gr3 9900 | B42 Sicilian, Kan |
| 2. O Wegener vs D Jakovenko |
| 0-1 | 27 |
2000 |
World Junior | B49 Sicilian, Taimanov Variation |
| 3. Z Pengxiang vs O Wegener |
| 1-0 | 34 |
2000 |
World Junior | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 4. O Wegener vs Sasikiran |
| 0-1 | 29 |
2000 |
World Junior | B17 Caro-Kann, Steinitz Variation |
| 5. M Saltaev vs O Wegener |
| ½-½ | 15 |
2001 |
Sportland NRW Cup | B90 Sicilian, Najdorf |
| 6. C Scholz vs O Wegener |
| 1-0 | 38 |
2001 |
Sportland NRW Cup | B90 Sicilian, Najdorf |
| 7. I Ibragimov vs O Wegener |
| 1-0 | 39 |
2001 |
Sportland NRW Cup | A01 Nimzovich-Larsen Attack |
| 8. S Kalinitschew vs O Wegener |
| 1-0 | 58 |
2001 |
Sportland NRW Cup | E12 Queen's Indian |
| 9. O Wegener vs M Raddatz |
| 1-0 | 29 |
2001 |
Sportland NRW Cup | B32 Sicilian |
| 10. O Wegener vs E Degtiarev |
| 1-0 | 46 |
2004 |
75th German Championship | C67 Ruy Lopez |
| 11. G Schebler vs O Wegener |
| 1-0 | 28 |
2004 |
75th German Championship | A46 Queen's Pawn Game |
| 12. K Bischoff vs O Wegener |
| 1-0 | 29 |
2004 |
75th German Championship | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 13. S Giessmann vs O Wegener |
| 0-1 | 39 |
2004 |
75th German Championship | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 14. O Wegener vs J Gustafsson |
| ½-½ | 51 |
2004 |
75th German Championship | C96 Ruy Lopez, Closed |
| 15. O Wegener vs M Scherer |
| 1-0 | 103 |
2004 |
75th German Championship | C00 French Defense |
| 16. L Kritz vs O Wegener |
| 1-0 | 32 |
2004 |
75th German Championship | B90 Sicilian, Najdorf |
| 17. F Ott vs O Wegener |
| 1-0 | 34 |
2004 |
75th German Championship | B50 Sicilian |
| 18. O Wegener vs C Wisnewski |
| 1-0 | 58 |
2004 |
75th German Championship | B00 Uncommon King's Pawn Opening |
| 19. O Wegener vs P Schlosser |
| 0-1 | 40 |
2005 |
Bundesliga | B90 Sicilian, Najdorf |
| 20. S Kindermann vs O Wegener |
| 1-0 | 35 |
2005 |
Bundesliga Final Weekend | B93 Sicilian, Najdorf, 6.f4 |