| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. M Valvo vs Burkett |
 | 1-0 | 12 |
1963 |
Indiana | B40 Sicilian |
| 2. Plaskett vs M Valvo |
| 0-1 | 76 |
1979 |
Marshall op | B04 Alekhine's Defense, Modern |
| 3. M Valvo vs J Peters |
| 1-0 | 58 |
1980 |
New York, NY USA | C81 Ruy Lopez, Open, Howell Attack |
| 4. M Valvo vs Silman |
| 1-0 | 25 |
1987 |
It New York (USA) | B14 Caro-Kann, Panov-Botvinnik Attack |
| 5. Deep Thought vs M Valvo |
| 0-1 | 48 |
1988 |
corr one move/every 3 days | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 6. M Valvo vs Deep Thought |
| 1-0 | 48 |
1988 |
corr one move/every 3 days | B03 Alekhine's Defense |
| 7. M Valvo vs Alburt |
| 1-0 | 24 |
1988 |
World Open | B03 Alekhine's Defense |
| 8. Deep Thought vs M Valvo |
| 0-1 | 48 |
1989 |
cr | C31 King's Gambit Declined, Falkbeer Counter Gambit |
| 9. M Valvo vs V Rezzuti |
| 1-0 | 25 |
1991 |
WT/M/GT/297 | C74 Ruy Lopez, Modern Steinitz Defense |
| 10. M Valvo vs V A Ivanov |
| 1-0 | 11 |
1991 |
WT/M/GT/297 | C33 King's Gambit Accepted |
| 11. D Tobor vs M Valvo |
| 0-1 | 24 |
1991 |
WT/M/GT/297 | C02 French, Advance |
| 12. A J Goldsby vs M Valvo |
| 0-1 | 38 |
1995 |
New York op | B74 Sicilian, Dragon, Classical |
| 13. M Valvo vs Dale Haukenfrers |
| 1-0 | 35 |
2001 |
26th Keres Mem | B06 Robatsch |
| 14. M Valvo vs C Dekker |
| 1-0 | 30 |
2001 |
26th Keres Mem | A15 English |
