Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. M Joffe vs J Ljungdahl |
| 1-0 | 35 | 1963 | Nordic-ch | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
2. H de Carbonnel vs J Ljungdahl |
| 1-0 | 52 | 1968 | 6th Correspondence World Championship | A77 Benoni, Classical, 9...Re8, 10.Nd2 |
3. E Thiele vs J Ljungdahl |
| 1-0 | 61 | 1968 | 6th Correspondence World Championship | B48 Sicilian, Taimanov Variation |
4. G Sanakoev vs J Ljungdahl |
| 1-0 | 40 | 1968 | 6th Correspondence World Championship | B49 Sicilian, Taimanov Variation |
5. H Rittner vs J Ljungdahl |
 | 1-0 | 28 | 1968 | 6th Correspondence World Championship | B48 Sicilian, Taimanov Variation |
6. J Ljungdahl vs V Zagorovsky |
| 0-1 | 50 | 1968 | 6th Correspondence World Championship | E94 King's Indian, Orthodox |
7. J Ljungdahl vs D Stern |
| 0-1 | 35 | 1968 | 6th Correspondence World Championship | D56 Queen's Gambit Declined |
8. J Ljungdahl vs R Sevecek |
| ½-½ | 37 | 1968 | 6th Correspondence World Championship | E64 King's Indian, Fianchetto, Yugoslav System |
9. J Ljungdahl vs S Nyman |
| ½-½ | 34 | 1968 | 6th Correspondence World Championship | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
10. J Ljungdahl vs N Karker |
 | 1-0 | 55 | 1968 | 6th Correspondence World Championship | A18 English, Mikenas-Carls |
11. J Ljungdahl vs C Jansen |
| ½-½ | 50 | 1968 | 6th Correspondence World Championship | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
12. J Ljungdahl vs J Hybl |
| ½-½ | 45 | 1968 | 6th Correspondence World Championship | A30 English, Symmetrical |
13. J Kellner vs J Ljungdahl |
| 1-0 | 31 | 1968 | 6th Correspondence World Championship | C00 French Defense |
14. R Kauranen vs J Ljungdahl |
| ½-½ | 52 | 1968 | 6th Correspondence World Championship | C18 French, Winawer |
15. Y Estrin vs J Ljungdahl |
 | 0-1 | 48 | 1968 | 6th Correspondence World Championship | B44 Sicilian |
16. S Aarseth vs J Ljungdahl |
| 0-1 | 48 | 1968 | 6th Correspondence World Championship | B49 Sicilian, Taimanov Variation |
17. A Stenborg vs J Ljungdahl |
| ½-½ | 21 | 1973 | SWE-ch | A07 King's Indian Attack |
18. J Ljungdahl vs A Ornstein |
| 0-1 | 71 | 1973 | SWE-ch | A37 English, Symmetrical |
19. T Wedberg vs J Ljungdahl |
 | 1-0 | 30 | 1974 | SWE-ch | B47 Sicilian, Taimanov (Bastrikov) Variation |
20. J Ljungdahl vs C Niklasson |
| 0-1 | 13 | 1974 | SWE-ch | E62 King's Indian, Fianchetto |
21. J Ljungdahl vs B Plato |
| 0-1 | 63 | 1984 | corr | C86 Ruy Lopez, Worrall Attack |