| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Ivkov vs J Diez del Corral |
| 1-0 | 30 |
1955 |
Hastings | C04 French, Tarrasch, Guimard Main line |
| 2. J Diez del Corral vs Taimanov |
| 0-1 | 30 |
1955 |
Hastings | B64 Sicilian, Richter-Rauzer Attack |
| 3. K Darga vs J Diez del Corral |
| ½-½ | 42 |
1955 |
Hastings 5556 | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 4. J Diez del Corral vs Korchnoi |
| 0-1 | 51 |
1955 |
Hastings | B64 Sicilian, Richter-Rauzer Attack |
| 5. O'Kelly vs J Diez del Corral |
| 1-0 | 40 |
1957 |
Madrid | A67 Benoni, Taimanov Variation |
| 6. J Diez del Corral vs K Darga |
| 0-1 | 37 |
1957 |
Madrid | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 7. J Diez del Corral vs K Darga |
| ½-½ | 41 |
1960 |
Clare Benedict Cup 07th | E54 Nimzo-Indian, 4.e3, Gligoric System |
| 8. J Diez del Corral vs K Darga |
| 0-1 | 38 |
1962 |
Clare Benedict Cup 09th | B44 Sicilian |
| 9. J Diez del Corral vs Petrosian |
| 0-1 | 39 |
1962 |
Olympiad | B56 Sicilian |
| 10. J Diez del Corral vs Z Nilsson |
| 0-1 | 41 |
1962 |
Varna ol (Men) | B38 Sicilian, Accelerated Fianchetto, Maroczy Bind, 6.Be3 |
| 11. A Prameshuber vs J Diez del Corral |
| ½-½ | 103 |
1962 |
Clare Benedict Cup 09th | A48 King's Indian |
| 12. J Diez del Corral vs K Darga |
| 1-0 | 32 |
1962 |
Varna ol (Men) | E41 Nimzo-Indian |
| 13. Schmid vs J Diez del Corral |
 | 1-0 | 35 |
1963 |
Clare Benedict Cup 10th | C18 French, Winawer |
| 14. F Kuijpers vs J Diez del Corral |
| 0-1 | 46 |
1965 |
Clare Benedict Cup 12th | C19 French, Winawer, Advance |
| 15. J Diez del Corral vs Velimirovic |
| ½-½ | 51 |
1966 |
The Hague zt | B27 Sicilian |
| 16. J Fridjonsson vs J Diez del Corral |
| ½-½ | 38 |
1966 |
Orebro Stud olm fB | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 17. J Diez del Corral vs Tringov |
| 0-1 | 39 |
1966 |
The Hague zt | E64 King's Indian, Fianchetto, Yugoslav System |
| 18. Schmid vs J Diez del Corral |
| 0-1 | 34 |
1966 |
Clare Benedict Cup 13th | B64 Sicilian, Richter-Rauzer Attack |
| 19. J Diez del Corral vs R End |
| 1-0 | 43 |
1966 |
Orebro Stud olm fB | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 20. M F Littleton vs J Diez del Corral |
| 0-1 | 48 |
1966 |
Haag zt | A56 Benoni Defense |
| 21. G Geotgelvek vs J Diez del Corral |
| ½-½ | 33 |
1966 |
Orebro Stud olm fB | E24 Nimzo-Indian, Samisch |
| 22. Dueno B (PUR) vs J Diez del Corral |
| 1-0 | 31 |
1966 |
Orebro Stud olm fB | B44 Sicilian |
| 23. J Diez del Corral vs Gligoric |
| 0-1 | 44 |
1966 |
The Hague zt | C84 Ruy Lopez, Closed |
| 24. J Diez del Corral vs H J Illi |
| ½-½ | 26 |
1966 |
Orebro Stud olm fB | C26 Vienna |
| 25. J Diez del Corral vs Smyslov |
| ½-½ | 30 |
1967 |
7, Palma de Mallorca | A42 Modern Defense, Averbakh System |