Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. M Fallone vs B Jansson |
| 0-1 | 25 | 1964 | Tel Aviv Olympiad qual-3 | D02 Queen's Pawn Game |
2. B Jansson vs O M Hindle |
| 1-0 | 39 | 1964 | Tel Aviv Olympiad Final-B | B43 Sicilian, Kan, 5.Nc3 |
3. B Jansson vs C Jauregui |
| 1-0 | 57 | 1964 | Tel Aviv Olympiad Final-B | C75 Ruy Lopez, Modern Steinitz Defense |
4. B Jansson vs R Ortega |
 | 0-1 | 66 | 1964 | Tel Aviv Olympiad Final-B | B28 Sicilian, O'Kelly Variation |
5. B Jansson vs R Hoen |
| ½-½ | 75 | 1964 | Tel Aviv Olympiad Final-B | B17 Caro-Kann, Steinitz Variation |
6. O Rodriguez Vargas vs B Jansson |
| 1-0 | 34 | 1964 | Tel Aviv Olympiad Final-B | E82 King's Indian, Samisch, double Fianchetto Variation |
7. B Jansson vs W Golz |
 | 1-0 | 53 | 1964 | Tel Aviv Olympiad Final-B | E75 King's Indian, Averbakh, Main line |
8. F Gragger vs B Jansson |
 | 0-1 | 15 | 1964 | Tel Aviv Olympiad Final-B | B17 Caro-Kann, Steinitz Variation |
9. B Jansson vs G Chalkhaasuren |
 | 1-0 | 22 | 1964 | Tel Aviv Olympiad Final-B | C84 Ruy Lopez, Closed |
10. B Horberg vs B Jansson |
| ½-½ | 11 | 1965 | Swedish Championship | E17 Queen's Indian |
11. B Jansson vs Z Nilsson |
| ½-½ | 29 | 1965 | Swedish Championship | E70 King's Indian |
12. A Nilsson vs B Jansson |
| ½-½ | 77 | 1965 | Swedish Championship | B09 Pirc, Austrian Attack |
13. R Goode vs B Jansson |
| 0-1 | 37 | 1965 | Swedish Championship | A15 English |
14. B Jansson vs B Andersson |
| 1-0 | 48 | 1965 | Swedish Championship | C66 Ruy Lopez |
15. B Jansson vs L Abramsson |
| 1-0 | 60 | 1965 | Swedish Championship | B89 Sicilian |
16. B Jansson vs O Kinnmark |
| 0-1 | 43 | 1965 | Swedish Championship | D41 Queen's Gambit Declined, Semi-Tarrasch |
17. B Jansson vs A Fridh |
| 1-0 | 33 | 1965 | Swedish Championship | C91 Ruy Lopez, Closed |
18. M Johansson vs B Jansson |
| ½-½ | 19 | 1965 | Swedish Championship | C16 French, Winawer |
19. B Jansson vs A Werle |
| 1-0 | 32 | 1965 | Swedish Championship | D37 Queen's Gambit Declined |
20. B Eriksson vs B Jansson |
| 0-1 | 33 | 1965 | Swedish Championship | B32 Sicilian |
21. H Ek vs B Jansson |
| ½-½ | 15 | 1965 | Swedish Championship | A43 Old Benoni |
22. B Jansson vs K Krantz |
| 1-0 | 56 | 1965 | Swedish Championship | A56 Benoni Defense |
23. B Ekenberg vs B Jansson |
| 1-0 | 29 | 1965 | Swedish Championship | E79 King's Indian, Four Pawns Attack, Main line |
24. B Jansson vs H Akvist |
| ½-½ | 40 | 1965 | Swedish Championship | A22 English |
25. B Jansson vs Polugaevsky |
| 0-1 | 54 | 1966 | Havana Olympiad qual-1 | A77 Benoni, Classical, 9...Re8, 10.Nd2 |