Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. Larsen vs J Sloth |
| ½-½ | 60 | 1965 | Copenhagen | A00 Uncommon Opening |
27. Barcza vs J Sloth |
| ½-½ | 34 | 1965 | Copenhagen | A35 English, Symmetrical |
28. O Jakobsen vs J Sloth |
| 0-1 | 46 | 1965 | Copenhagen | B18 Caro-Kann, Classical |
29. M Ujtelky vs J Sloth |
| 1-0 | 39 | 1965 | Copenhagen | A12 English with b3 |
30. J Sloth vs K Honfi |
| 0-1 | 59 | 1965 | Copenhagen | E68 King's Indian, Fianchetto, Classical Variation, 8.e4 |
31. J Sloth vs A Dueckstein |
| ½-½ | 47 | 1965 | Copenhagen | A04 Reti Opening |
32. Hort vs J Sloth |
 | ½-½ | 57 | 1965 | Copenhagen | C11 French |
33. J Sloth vs Janosevic |
| 1-0 | 53 | 1965 | Copenhagen | A05 Reti Opening |
34. J Sloth vs B Andersen |
| ½-½ | 43 | 1965 | Copenhagen | A49 King's Indian, Fianchetto without c4 |
35. Suetin vs J Sloth |
| 1-0 | 42 | 1965 | Copenhagen | B92 Sicilian, Najdorf, Opocensky Variation |
36. J Sloth vs Taimanov |
 | 0-1 | 71 | 1965 | Copenhagen | A04 Reti Opening |
37. S Hamann vs J Sloth |
| ½-½ | 42 | 1965 | Copenhagen | B84 Sicilian, Scheveningen |
38. J Sloth vs J G Nielsen |
| ½-½ | 34 | 1965 | Copenhagen | A07 King's Indian Attack |
39. K Teboudi vs J Sloth |
| 0-1 | 53 | 1966 | Orebro Stud olm prelim5 | B17 Caro-Kann, Steinitz Variation |
40. I Radulov vs J Sloth |
| 1-0 | 68 | 1966 | Orebro Stud olm prelim5 | B14 Caro-Kann, Panov-Botvinnik Attack |
41. J Sloth vs E A Pantazi |
| ½-½ | 29 | 1966 | Orebro Stud olm fA | E17 Queen's Indian |
42. Jansa vs J Sloth |
| ½-½ | 21 | 1966 | Orebro Stud olm fA | B18 Caro-Kann, Classical |
43. J Sloth vs M Basman |
 | 1-0 | 38 | 1966 | Orebro Stud olm fA | A07 King's Indian Attack |
44. J Sloth vs I Polgar |
| 0-1 | 34 | 1966 | Orebro Stud olm fA | A12 English with b3 |
45. G Kuzmin vs J Sloth |
| 1-0 | 38 | 1966 | Orebro Stud olm fA | D18 Queen's Gambit Declined Slav, Dutch |
46. J Sloth vs H Ree |
| ½-½ | 15 | 1966 | Orebro Stud olm fA | A36 English |
47. M Benoit vs J Sloth |
| 0-1 | 46 | 1969 | World Student Team Championship qual-2 | B06 Robatsch |
48. J Sloth vs J Tompa |
| ½-½ | 68 | 1969 | World Student Team Championship qual-2 | A12 English with b3 |
49. M Wahlbom vs J Sloth |
| 1-0 | 63 | 1969 | World Student Team Championship qual-2 | B77 Sicilian, Dragon, Yugoslav Attack |
50. J Sloth vs K Maeder |
| 1-0 | 40 | 1969 | World Student Team Championship qual-2 | A15 English |