| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. S Poliantsev vs L Bass |
| 1-0 | 25 | 1974 | VUZ Cup | C54 Giuoco Piano |
| 2. L Bass vs Sokolov |
| 1-0 | 46 | 1974 | USSR Junior Championship | E15 Queen's Indian |
| 3. Vladimirov vs L Bass |
| 1-0 | 28 | 1974 | USSR Junior Championship | B17 Caro-Kann, Steinitz Variation |
| 4. L Bass vs Alburt |
| ½-½ | 30 | 1979 | 80th US Open | A57 Benko Gambit |
| 5. L Bass vs D Vasto |
| ½-½ | 49 | 1979 | 80th US Open | A58 Benko Gambit |
| 6. R Stone vs L Bass |
| ½-½ | 38 | 1979 | 80th US Open | B46 Sicilian, Taimanov Variation |
| 7. L Bass vs J Silman |
| 1-0 | 46 | 1979 | 80th US Open | E19 Queen's Indian, Old Main line, 9.Qxc3 |
| 8. A Bisguier vs L Bass |
| 1-0 | 41 | 1979 | 80th US Open | E11 Bogo-Indian Defense |
| 9. L Day vs L Bass |
| ½-½ | 8 | 1980 | Marshall Bar Point int. | B10 Caro-Kann |
| 10. L Day vs L Bass |
| 1-0 | 57 | 1980 | 8th World Open | B10 Caro-Kann |
| 11. L Bass vs C Coudari |
| ½-½ | 48 | 1980 | Quebec Open | E11 Bogo-Indian Defense |
| 12. L Bass vs M Poulin |
| 1-0 | 41 | 1980 | Quebec Open | A41 Queen's Pawn Game (with ...d6) |
| 13. I Ivanov vs L Bass |
| 1-0 | 64 | 1980 | Quebec Open | A04 Reti Opening |
| 14. P Stigar vs L Bass |
| ½-½ | 21 | 1981 | World Youth U26 Team Championship | A46 Queen's Pawn Game |
| 15. D Paulsen vs L Bass |
| 0-1 | 55 | 1981 | World Youth U26 Team Championship | E38 Nimzo-Indian, Classical, 4...c5 |
| 16. L Bass vs H Grooten |
| 1-0 | 48 | 1981 | World Youth U26 Team Championship | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 17. G Pirisi vs L Bass |
| 0-1 | 36 | 1981 | World Youth U26 Team Championship | B40 Sicilian |
| 18. L Bass vs Vladimirov |
| ½-½ | 18 | 1981 | World Youth U26 Team Championship | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 19. L Bass vs M Sjoberg |
| 0-1 | 36 | 1981 | World Youth U26 Team Championship | A60 Benoni Defense |
| 20. L Bass vs B Neuenschwander |
| ½-½ | 42 | 1981 | World Youth U26 Team Championship | D06 Queen's Gambit Declined |
| 21. K Valkesalmi vs L Bass |
| ½-½ | 50 | 1981 | World Youth U26 Team Championship | A07 King's Indian Attack |
| 22. L Bass vs J Silman |
| 1-0 | 38 | 1982 | Illinois Futurity | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 23. L Bass vs D Sprenkle |
| 1-0 | 26 | 1982 | Illinois Futurity | A52 Budapest Gambit |
| 24. C Brasket vs L Bass |
| 1-0 | 43 | 1982 | Illinois Futurity | A08 King's Indian Attack |
| 25. A C Chow vs L Bass |
 | 0-1 | 41 | 1982 | Illinois Futurity | E54 Nimzo-Indian, 4.e3, Gligoric System |
Kibitzing
