| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Timman vs J Willemsen |
| 0-1 | 65 |
1964 |
The Hague jr | B40 Sicilian |
| 2. L J Kerkhoff vs Timman |
| 1-0 | 34 |
1964 |
Rotterdam ch-NED jr | C02 French, Advance |
| 3. S Noorda vs Timman |
 | 1-0 | 9 |
1964 |
Rotterdam ch-NED jr | C02 French, Advance |
| 4. W Overweg vs Timman |
| 1-0 | 32 |
1966 |
Delft ch-NED jr | A22 English |
| 5. M Steinberg vs Timman |
| 1-0 | 34 |
1966 |
Groningen Ech-jr pre | C02 French, Advance |
| 6. A Westermeier vs Timman |
| 1-0 | 45 |
1966 |
Groningen Ech-jr fin | B80 Sicilian, Scheveningen |
| 7. Timman vs S Pedersen |
| 0-1 | 33 |
1966 |
Groningen Ech-jr fin | A41 Queen's Pawn Game (with ...d6) |
| 8. M Meijer vs Timman |
| 1-0 | 27 |
1966 |
Delft ch-NED jr | C77 Ruy Lopez |
| 9. J Moles vs Timman |
| 1-0 | 41 |
1966 |
Paris tt jr | C53 Giuoco Piano |
| 10. R Schendstok vs Timman |
| 1-0 | 46 |
1967 |
The Hague | C18 French, Winawer |
| 11. K H Maeder vs Timman |
| 1-0 | 30 |
1967 |
Groningen Ech-jr | C04 French, Tarrasch, Guimard Main line |
| 12. Timman vs Adorjan |
| 0-1 | 32 |
1967 |
Groningen Ech-jr fin (01) | A49 King's Indian, Fianchetto without c4 |
| 13. Timman vs J T Barendregt |
| 0-1 | 38 |
1967 |
Nederland tt | A42 Modern Defense, Averbakh System |
| 14. Timman vs J M Greben |
| 0-1 | 32 |
1967 |
Amsterdam IBM III | E80 King's Indian, Samisch Variation |
| 15. Timman vs Adorjan |
| 0-1 | 40 |
1967 |
Groningen Ech-jr fin (01) | A16 English |
| 16. Timman vs A Lombard |
| 0-1 | 39 |
1967 |
Jeruzalem Wch-jr pre | D30 Queen's Gambit Declined |
| 17. Timman vs R Hartoch |
| 0-1 | 37 |
1967 |
Amsterdam IBM III | E87 King's Indian, Samisch, Orthodox |
| 18. Timman vs Huebner |
| 0-1 | 45 |
1967 |
Jeruzalem Wch-jr fin | B00 Uncommon King's Pawn Opening |
| 19. Kaplan vs Timman |
| 1-0 | 18 |
1967 |
1, Jerusalem Wch jr | C17 French, Winawer, Advance |
| 20. Timman vs Huebner |
| 0-1 | 43 |
1967 |
The Hague tt jr | A42 Modern Defense, Averbakh System |
| 21. Timman vs J Lewi |
| 0-1 | 27 |
1967 |
Groningen Ech-jr | D88 Grunfeld, Spassky Variation, Main line, 10...cd, 11.cd |
| 22. H Ree vs Timman |
| 1-0 | 34 |
1968 |
Rotterdam m | A13 English |
| 23. Kavalek vs Timman |
| 1-0 | 36 |
1968 |
The Hague | E00 Queen's Pawn Game |
| 24. T Hart vs Timman |
| 1-0 | 20 |
1968 |
Plymouth tt jr 06 | B02 Alekhine's Defense |
| 25. D D Van Geet vs Timman |
| 1-0 | 18 |
1968 |
The Hague | D01 Richter-Veresov Attack |
