| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. C Benson vs T Dowden |
| 0-1 | 17 |
1977 |
Otago-Southland Schoolpupils Ch | B03 Alekhine's Defense |
| 2. T Dowden vs A J Love |
 | 0-1 | 41 |
1977 |
Otago-Southland Schoolpupils Ch | A45 Queen's Pawn Game |
| 3. G Bates vs T Dowden |
| 1-0 | 40 |
1979 |
South Island Ch | C00 French Defense |
| 4. T Dowden vs M Foord |
| 1-0 | 42 |
1979 |
South Island Ch | C00 French Defense |
| 5. T Dowden vs A Lloyd |
| 1-0 | 31 |
1979 |
NZ Schoolpupils Ch | B40 Sicilian |
| 6. T Dowden vs R J Sutton |
| 0-1 | 39 |
1980 |
Otago Premier Tt | C33 King's Gambit Accepted |
| 7. T Dowden vs D Watts |
| 1-0 | 23 |
1980 |
Otago C C Ch | A02 Bird's Opening |
| 8. T Dowden vs P R Green |
| 0-1 | 47 |
1980 |
87th NZ Ch Premier Reserve | B21 Sicilian, 2.f4 and 2.d4 |
| 9. T Dowden vs J Lichter |
| 1-0 | 41 |
1980 |
Otago Premier Tt | C02 French, Advance |
| 10. R Wansink vs T Dowden |
| 1-0 | 59 |
1982 |
Otago Easter Tt | B09 Pirc, Austrian Attack |
| 11. P R Green vs T Dowden |
| 0-1 | 32 |
1982 |
89th NZ Ch | A57 Benko Gambit |
| 12. T Dowden vs V Small |
| ½-½ | 15 |
1982 |
South Island Ch | A01 Nimzovich-Larsen Attack |
| 13. T Dowden vs W Petch |
 | 1-0 | 19 |
1982 |
Otago Easter Tt | B22 Sicilian, Alapin |
| 14. T Dowden vs A J Love |
| ½-½ | 24 |
1982 |
South Island Ch | C42 Petrov Defense |
| 15. D Weegenaar vs T Dowden |
| 0-1 | 28 |
1982 |
Otago C C Ch | B09 Pirc, Austrian Attack |
| 16. J Sarfati vs T Dowden |
| ½-½ | 18 |
1982 |
NZL-ch | C09 French, Tarrasch, Open Variation, Main line |
| 17. M Foord vs T Dowden |
| 1-0 | 48 |
1982 |
Otago Easter Tt | B07 Pirc |
| 18. P Garbett vs T Dowden |
| 1-0 | 28 |
1983 |
90th NZ Ch | C05 French, Tarrasch |
| 19. T Dowden vs A J Love |
| 1-0 | 24 |
1983 |
90th NZ Ch | C50 Giuoco Piano |
| 20. A Pomeroy vs T Dowden |
| 0-1 | 40 |
1985 |
NZL-ch | C19 French, Winawer, Advance |
| 21. J Sarfati vs T Dowden |
| ½-½ | 44 |
1985 |
NZL-ch | B26 Sicilian, Closed, 6.Be3 |
| 22. T Dowden vs J Sarfati |
| ½-½ | 14 |
1991 |
NZL-ch | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 23. D I Bell vs T Dowden |
| ½-½ | 35 |
1998 |
North Island Ch | C02 French, Advance |
| 24. P Garbett vs T Dowden |
| 1-0 | 51 |
1999 |
106th NZ Ch | C17 French, Winawer, Advance |
| 25. A Ker vs T Dowden |
| 1-0 | 48 |
1999 |
106th NZ Ch | A45 Queen's Pawn Game |