| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. T Dorsch vs W A Bills |
| 1-0 | 60 | 1971 | 72nd US Open | B10 Caro-Kann |
| 2. Denker vs T Dorsch |
| 1-0 | 39 | 1971 | 72nd US Open | A93 Dutch, Stonewall, Botvinnik Variation |
| 3. T Dorsch vs H Raymond (Riggs) |
| 1-0 | 46 | 1971 | 72nd US Open | B40 Sicilian |
| 4. E Bone vs T Dorsch |
| 1-0 | 24 | 1971 | 72nd US Open | C15 French, Winawer |
| 5. T Dorsch vs P Velliotes |
| 0-1 | 19 | 1971 | 72nd US Open | C44 King's Pawn Game |
| 6. Browne vs T Dorsch |
| 1-0 | 43 | 1974 | LERA | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 7. M Seitzer vs T Dorsch |
| 1-0 | 31 | 1975 | 76th US Open | B44 Sicilian |
| 8. Smyslov vs T Dorsch |
| 1-0 | 60 | 1976 | Simul, 23b | A10 English |
| 9. T Dorsch vs C Carlson |
| 0-1 | 29 | 1976 | American Open | B22 Sicilian, Alapin |
| 10. R Lobo vs T Dorsch |
| 1-0 | 32 | 1980 | Paul Masson Masters | B58 Sicilian |
| 11. T Dorsch vs P Whitehead |
| 0-1 | 14 | 1980 | Paul Masson Masters | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 12. T Dorsch vs A Anderson |
| ½-½ | 51 | 1980 | Paul Masson Masters | A29 English, Four Knights, Kingside Fianchetto |
| 13. A Soltis vs T Dorsch |
| 1-0 | 55 | 1981 | 82nd US Open | C05 French, Tarrasch |
| 14. T Dorsch vs E Chapa |
| 0-1 | 29 | 1989 | American Open | A35 English, Symmetrical |
| 15. R Lobo vs T Dorsch |
| 1-0 | 31 | 1989 | American Open | A10 English |
| 16. T Dorsch vs L Davis |
| 0-1 | 50 | 1990 | Livermore op | C44 King's Pawn Game |
| 17. T Dorsch vs A Sandrin |
| 0-1 | 44 | 1990 | USA Masters | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 18. D Fletcher vs T Dorsch |
| 0-1 | 35 | 1990 | USA Masters | A03 Bird's Opening |
| 19. M Rohde vs T Dorsch |
| 1-0 | 31 | 1990 | USA Masters | B60 Sicilian, Richter-Rauzer |
| 20. R F Bukovac vs T Dorsch |
| 0-1 | 33 | 1990 | USA Masters | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 21. T Dorsch vs W Harris |
| ½-½ | 71 | 1990 | USA Masters | B90 Sicilian, Najdorf |
| 22. R D Zumbrunnen vs T Dorsch |
| 0-1 | 39 | 1990 | USA Masters | A07 King's Indian Attack |
| 23. T Dorsch vs R K Johnson |
| 0-1 | 45 | 1990 | USA Masters | B13 Caro-Kann, Exchange |
| 24. T Dorsch vs A S Awate |
| ½-½ | 60 | 1991 | Palo Alto | B28 Sicilian, O'Kelly Variation |
| 25. R Burnett vs T Dorsch |
| 1-0 | 31 | 1991 | 92nd US Open | A15 English |
Kibitzing
