| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Uddenfeldt vs J Moles |
| 0-1 | 39 |
1969 |
Wch b20 group 1 | E83 King's Indian, Samisch |
| 2. Uddenfeldt vs C Kiffmeyer |
| 1-0 | 38 |
1970 |
Groningen | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 3. Uddenfeldt vs Browne |
| 0-1 | 40 |
1971 |
Stockholm (Sweden) | A67 Benoni, Taimanov Variation |
| 4. Karpov vs Uddenfeldt |
 | 1-0 | 27 |
1972 |
07, Skopje ol final | B93 Sicilian, Najdorf, 6.f4 |
| 5. J Fridjonsson vs Uddenfeldt |
| 0-1 | 32 |
1973 |
Ribe 6 Nations chT | A00 Uncommon Opening |
| 6. P Saariluoma vs Uddenfeldt |
| 0-1 | 44 |
1973 |
Ribe 6 Nations chT | B06 Robatsch |
| 7. Uddenfeldt vs S Buchal |
| 1-0 | 53 |
1973 |
Ribe 6 Nations chT | A88 Dutch, Leningrad, Main Variation with c6 |
| 8. J Kristiansen vs Uddenfeldt |
| 1-0 | 40 |
1973 |
Ribe 6 Nations chT | B09 Pirc, Austrian Attack |
| 9. Uddenfeldt vs S Heim |
| ½-½ | 53 |
1973 |
Ribe 6 Nations chT | A31 English, Symmetrical, Benoni Formation |
| 10. Ivkov vs Uddenfeldt |
 | 1-0 | 39 |
1974 |
Nice olm | B06 Robatsch |
| 11. Najdorf vs Uddenfeldt |
| 1-0 | 55 |
1974 |
Nice | E63 King's Indian, Fianchetto, Panno Variation |
| 12. Uddenfeldt vs Reshevsky |
| 0-1 | 48 |
1974 |
Olympiad (Finals) | A57 Benko Gambit |
| 13. Najdorf vs Uddenfeldt |
| ½-½ | 55 |
1974 |
Nice | E63 King's Indian, Fianchetto, Panno Variation |
| 14. Ivkov vs Uddenfeldt |
| 1-0 | 40 |
1974 |
Nice (ol) 17/75 (Ivkov,B) | A42 Modern Defense, Averbakh System |
| 15. Uddenfeldt vs Petrosian |
 | 0-1 | 50 |
1974 |
Nice | D27 Queen's Gambit Accepted, Classical |
| 16. G Bordonada vs Uddenfeldt |
| 0-1 | 42 |
1974 |
Nice ol (Men) | B09 Pirc, Austrian Attack |