| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Tompa vs J Wieweg |
| 1-0 | 60 | 1969 | Bad Pyrmont | C77 Ruy Lopez |
| 2. J Wieweg vs A S Segal |
| 0-1 | 29 | 1969 | Bad Pyrmont | C42 Petrov Defense |
| 3. J Vogel vs J Wieweg |
| 0-1 | 63 | 1969 | Bad Pyrmont | A16 English |
| 4. J Wieweg vs S Velickovic |
| 0-1 | 28 | 1969 | Bad Pyrmont | B81 Sicilian, Scheveningen, Keres Attack |
| 5. T Bjerre vs J Wieweg |
| 1-0 | 47 | 1969 | Bad Pyrmont | E94 King's Indian, Orthodox |
| 6. G Pollak vs J Wieweg |
| ½-½ | 12 | 1969 | Bad Pyrmont | D79 Neo-Grunfeld, 6.O-O, Main line |
| 7. G Eppinger vs J Wieweg |
| 0-1 | 29 | 1969 | Bad Pyrmont | B43 Sicilian, Kan, 5.Nc3 |
| 8. J Wieweg vs L Neckar |
| 1-0 | 41 | 1969 | Bad Pyrmont | B04 Alekhine's Defense, Modern |
| 9. J Wieweg vs A Westermeier |
| ½-½ | 23 | 1969 | Bad Pyrmont | B96 Sicilian, Najdorf |
| 10. M Corden vs J Wieweg |
| ½-½ | 57 | 1969 | Bad Pyrmont | B43 Sicilian, Kan, 5.Nc3 |
| 11. G Niess vs J Wieweg |
| ½-½ | 26 | 1969 | Bad Pyrmont | D73 Neo-Grunfeld, 5.Nf3 |
| 12. J Wieweg vs R Ungnad |
| 0-1 | 33 | 1969 | Bad Pyrmont | C84 Ruy Lopez, Closed |
| 13. J Wieweg vs H Bastian |
| ½-½ | 29 | 1969 | Bad Pyrmont | B09 Pirc, Austrian Attack |
| 14. J Narbel vs J Wieweg |
| ½-½ | 48 | 1969 | Bad Pyrmont | E75 King's Indian, Averbakh, Main line |
| 15. J Wieweg vs U Haas |
| ½-½ | 16 | 1969 | Bad Pyrmont | C84 Ruy Lopez, Closed |
| 16. J Wieweg vs M Berglund |
| 1-0 | 41 | 1970 | Swedish Championship | B98 Sicilian, Najdorf |
| 17. J Wieweg vs M Johansson |
| 0-1 | 31 | 1970 | Swedish Championship | C82 Ruy Lopez, Open |
| 18. K Skold vs J Wieweg |
| ½-½ | 60 | 1970 | Swedish Championship | B40 Sicilian |
| 19. O Kinnmark vs J Wieweg |
| 1-0 | 54 | 1970 | Swedish Championship | C93 Ruy Lopez, Closed, Smyslov Defense |
| 20. J Wieweg vs A Olsson |
| 0-1 | 39 | 1970 | Swedish Championship | C67 Ruy Lopez |
| 21. N Malmdin vs J Wieweg |
| 1-0 | 20 | 1970 | Swedish Championship | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 22. J Wieweg vs S Hjorth |
| 0-1 | 23 | 1970 | Swedish Championship | B77 Sicilian, Dragon, Yugoslav Attack |
| 23. G Brostrom vs J Wieweg |
| ½-½ | 50 | 1970 | Swedish Championship | A15 English |
| 24. J Wieweg vs B Ekenberg |
| 0-1 | 22 | 1970 | Swedish Championship | C13 French |
| 25. J Wieweg vs L Ljungquist |
| ½-½ | 18 | 1970 | Swedish Championship | C11 French |
Kibitzing
