| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. C Astengo vs R Genne |
 | 1-0 | 11 |
1992 |
It (open) | A40 Queen's Pawn Game |
| 2. C Astengo vs S Drazic |
| 0-1 | 32 |
1998 |
Bratto Open 18th | B43 Sicilian, Kan, 5.Nc3 |
| 3. C Astengo vs D Genocchio |
| 1-0 | 27 |
1999 |
Saint Vincent Open | B34 Sicilian, Accelerated Fianchetto |
| 4. A Lugovoi vs C Astengo |
| 1-0 | 40 |
1999 |
Saint Vincent Open | E41 Nimzo-Indian |
| 5. N Giffard vs C Astengo |
 | 1-0 | 33 |
1999 |
Groningen op | A14 English |
| 6. C Astengo vs V Menoni |
| ½-½ | 25 |
2001 |
21st Open | C17 French, Winawer, Advance |
| 7. H Koskinen vs C Astengo |
| ½-½ | 37 |
2001 |
21st Open | A04 Reti Opening |
| 8. C Astengo vs A Adly |
| 0-1 | 28 |
2001 |
MTO | B96 Sicilian, Najdorf |
| 9. J Giretti Kanev vs C Astengo |
| ½-½ | 25 |
2001 |
21st Open | D45 Queen's Gambit Declined Semi-Slav |
| 10. A Zichichi vs C Astengo |
| ½-½ | 49 |
2001 |
21st Open | D00 Queen's Pawn Game |
| 11. E Vovsha vs C Astengo |
| 1-0 | 27 |
2001 |
MTO | B90 Sicilian, Najdorf |
| 12. C Astengo vs I Capata |
| ½-½ | 47 |
2001 |
21st Open | C67 Ruy Lopez |
| 13. C Astengo vs S Tatai |
| 0-1 | 48 |
2001 |
21st Open | C47 Four Knights |
| 14. V Bukal vs C Astengo |
| 1-0 | 35 |
2001 |
open | D45 Queen's Gambit Declined Semi-Slav |
| 15. S Maksimovic vs C Astengo |
| ½-½ | 29 |
2001 |
21st Open | D30 Queen's Gambit Declined |
| 16. C Astengo vs S Sarno |
| ½-½ | 29 |
2001 |
21st Open | B07 Pirc |
| 17. E Ausmins vs C Astengo |
| 0-1 | 47 |
2001 |
ITA-ch61 sf | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 18. C Astengo vs A Everet |
| 1-0 | 67 |
2001 |
21st Open | C00 French Defense |
| 19. J Kolly vs C Astengo |
| 0-1 | 53 |
2001 |
MTO | D19 Queen's Gambit Declined Slav, Dutch |
| 20. E Schiller vs C Astengo |
 | 1-0 | 38 |
2002 |
Dos Hermanas | D12 Queen's Gambit Declined Slav |
| 21. V Saravanan vs C Astengo |
 | 1-0 | 46 |
2007 |
Cannes Open | C10 French |
| 22. C Astengo vs G Mufic |
| ½-½ | 47 |
2007 |
Cannes Open | B32 Sicilian |
| 23. C Astengo vs M Hoffmann |
| ½-½ | 41 |
2008 |
Bad Wiessee | B97 Sicilian, Najdorf |
| 24. C Astengo vs Ulf Andersson |
| ½-½ | 37 |
2008 |
Bad Wiessee | A07 King's Indian Attack |
| 25. H Reefschlaeger vs C Astengo |
| 1-0 | 29 |
2008 |
Bad Wiessee | D13 Queen's Gambit Declined Slav, Exchange Variation |