| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Christiansen vs J Frankle |
| 1-0 | 41 |
1973 |
USA-ch jr | B31 Sicilian, Rossolimo Variation |
| 2. Christiansen vs C Barnes |
| 1-0 | 37 |
1973 |
USA-ch jr | B27 Sicilian |
| 3. Christiansen vs J S Neto |
| ½-½ | 41 |
1975 |
Buenos Aires jr | B85 Sicilian, Scheveningen, Classical |
| 4. Christiansen vs J H Gomez-Baillo |
 | 0-1 | 39 |
1975 |
Buenos Aires jr | B30 Sicilian |
| 5. Christiansen vs L C Gilden |
| 1-0 | 23 |
1976 |
USA | B43 Sicilian, Kan, 5.Nc3 |
| 6. Christiansen vs J Szmetan |
| 1-0 | 43 |
1976 |
Torremolinos (Spain) | B25 Sicilian, Closed |
| 7. Christiansen vs Browne |
| 0-1 | 65 |
1976 |
USA | B23 Sicilian, Closed |
| 8. Christiansen vs J M Bellon Lopez |
| 1-0 | 21 |
1976 |
Torremolinos (Spain) | B30 Sicilian |
| 9. Christiansen vs Najdorf |
| ½-½ | 37 |
1976 |
Lone Pine (USA) | B23 Sicilian, Closed |
| 10. Christiansen vs F Van der Vliet |
| ½-½ | 44 |
1977 |
Wijk aan Zee II | B82 Sicilian, Scheveningen |
| 11. Christiansen vs Reshevsky |
| 1-0 | 28 |
1977 |
Mentor USA ch | B90 Sicilian, Najdorf |
| 12. Christiansen vs J Grefe |
| ½-½ | 23 |
1977 |
Mentor ch-USA (03) | B40 Sicilian |
| 13. Christiansen vs E Meyer |
| 1-0 | 26 |
1977 |
Lone Pine (USA) | B42 Sicilian, Kan |
| 14. Christiansen vs Z Krnic |
| 1-0 | 43 |
1977 |
Wijk aan Zee II | B30 Sicilian |
| 15. Christiansen vs Benko |
| 0-1 | 45 |
1978 |
Pasadena ch-USA | B40 Sicilian |
| 16. Christiansen vs Kavalek |
| ½-½ | 30 |
1978 |
Pasadena ch-USA | B82 Sicilian, Scheveningen |
| 17. Christiansen vs Van der Sterren |
| 1-0 | 49 |
1978 |
Amsterdam IBM II | B31 Sicilian, Rossolimo Variation |
| 18. Christiansen vs W Wood |
| ½-½ | 36 |
1979 |
Long Beach | B33 Sicilian |
| 19. Christiansen vs E Michaelides |
| 1-0 | 32 |
1980 |
Lone Pine (USA) | B23 Sicilian, Closed |
| 20. Christiansen vs A Lein |
| ½-½ | 51 |
1980 |
Greenville ch-USA | B42 Sicilian, Kan |
| 21. Christiansen vs J Peters |
| 1-0 | 46 |
1980 |
Greenville ch-USA | B31 Sicilian, Rossolimo Variation |
| 22. Christiansen vs M Andersson |
| ½-½ | 29 |
1981 |
Mar del Plata (Argentina) | B25 Sicilian, Closed |
| 23. Christiansen vs Ulf Andersson |
| ½-½ | 29 |
1981 |
Mar del Plata | B25 Sicilian, Closed |
| 24. Christiansen vs Ulf Andersson |
| ½-½ | 23 |
1981 |
Hastings | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 25. Christiansen vs Csom |
| ½-½ | 31 |
1982 |
It (cat.9) | B62 Sicilian, Richter-Rauzer |
