| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. A Trangmar vs P Hershman |
| 1-0 | 32 | 1966 | BCF-ch U16 | A10 English |
| 2. G Brindle vs A Trangmar |
| 1-0 | 37 | 1966 | BCF-ch U16 | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
| 3. A Trangmar vs J W Savage |
| 0-1 | 29 | 1966 | BCF-ch U16 | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 4. A Trangmar vs P J Smith |
| 1-0 | 26 | 1967 | BCF-ch U18 | E60 King's Indian Defense |
| 5. N B Ramsey vs A Trangmar |
| 1-0 | 33 | 1967 | BCF-ch U18 | C01 French, Exchange |
| 6. A Trangmar vs R J Miles |
| 1-0 | 21 | 1967 | BCF-ch U18 | D50 Queen's Gambit Declined |
| 7. A Trangmar vs T Robbins |
| 1-0 | 41 | 1969 | BCF-ch op | D71 Neo-Grunfeld |
| 8. A Trangmar vs Keene |
 | 0-1 | 28 | 1970 | Training game, Cambridge | A36 English |
| 9. J Littlewood vs A Trangmar |
| 1-0 | 41 | 1971 | British Championship | A56 Benoni Defense |
| 10. A Trangmar vs W A Linton |
| ½-½ | 40 | 1971 | British Championship | D32 Queen's Gambit Declined, Tarrasch |
| 11. D M Wise vs A Trangmar |
| ½-½ | 27 | 1971 | British Championship | B36 Sicilian, Accelerated Fianchetto |
| 12. A Trangmar vs N J Kalton |
| ½-½ | 14 | 1971 | British Championship | D10 Queen's Gambit Declined Slav |
| 13. B Eley vs A Trangmar |
| 1-0 | 36 | 1971 | British Championship | B15 Caro-Kann |
| 14. J N Sugden vs A Trangmar |
| ½-½ | 25 | 1971 | British Championship | A56 Benoni Defense |
| 15. A Trangmar vs D B Pritchard |
| 0-1 | 40 | 1971 | British Championship | A58 Benko Gambit |
| 16. A Trangmar vs L P Burnett |
| 0-1 | 47 | 1971 | British Championship | A10 English |
| 17. L De Veauce vs A Trangmar |
| ½-½ | 57 | 1971 | British Championship | D78 Neo-Grunfeld, 6.O-O c6 |
| 18. S J Hutchings vs A Trangmar |
| 0-1 | 59 | 1971 | British Championship | B36 Sicilian, Accelerated Fianchetto |
| 19. A Trangmar vs P W Hempson |
| ½-½ | 16 | 1971 | British Championship | A36 English |
| 20. A Trangmar vs Speelman |
 | 1-0 | 35 | 1972 | British Championship | E62 King's Indian, Fianchetto |
| 21. M Stean vs A Trangmar |
| 0-1 | 41 | 1972 | British Championship | B36 Sicilian, Accelerated Fianchetto |
| 22. A Trangmar vs B Eley |
| 0-1 | 22 | 1972 | British Championship | A21 English |
| 23. D B Pritchard vs A Trangmar |
| 0-1 | 40 | 1972 | British Championship | B31 Sicilian, Rossolimo Variation |
| 24. A Trangmar vs R S McFarland |
| ½-½ | 22 | 1972 | British Championship | E29 Nimzo-Indian, Samisch |
| 25. J Penrose vs A Trangmar |
| 1-0 | 27 | 1972 | British Championship | B36 Sicilian, Accelerated Fianchetto |
Kibitzing
