| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. R Hungaski vs D Arenas |
| 1-0 | 33 | 2006 | Pan American-ch U20 | B76 Sicilian, Dragon, Yugoslav Attack |
| 2. M A Nina vs D Arenas |
| 0-1 | 48 | 2007 | Cali Continental Open | A07 King's Indian Attack |
| 3. D Arenas vs S Barrientos Chavarriaga |
| 0-1 | 36 | 2007 | Cali Continental Open | B44 Sicilian |
| 4. P A Ruiz Aguilar vs D Arenas |
| ½-½ | 46 | 2007 | Cali Continental Open | B92 Sicilian, Najdorf, Opocensky Variation |
| 5. D Arenas vs C Beltran |
| ½-½ | 24 | 2007 | Cali Continental Open | B12 Caro-Kann Defense |
| 6. A Cabrera Huaman vs D Arenas |
| 1-0 | 40 | 2007 | Cali Continental Open | E97 King's Indian |
| 7. D Arenas vs E Valle |
| 1-0 | 64 | 2007 | Cali Continental Open | A27 English, Three Knights System |
| 8. G Markzon vs D Arenas |
| 0-1 | 47 | 2007 | Cali Continental Open | E97 King's Indian |
| 9. D Arenas vs A Z Aranha Filho |
| 0-1 | 66 | 2007 | Cali Continental Open | B44 Sicilian |
| 10. J Renteria vs D Arenas |
| 0-1 | 40 | 2007 | Cali Continental Open | B08 Pirc, Classical |
| 11. D Arenas vs M Uribe |
| ½-½ | 44 | 2007 | Cali Continental Open | C19 French, Winawer, Advance |
| 12. C Salazar vs D Arenas |
| ½-½ | 24 | 2007 | Cali Continental Open | E81 King's Indian, Samisch |
| 13. D Arenas vs M Leon Hoyos |
| 0-1 | 71 | 2008 | Pan-American Continental | B12 Caro-Kann Defense |
| 14. V Bhat vs D Arenas |
| 0-1 | 51 | 2008 | Pan-American Continental | E94 King's Indian, Orthodox |
| 15. D Arenas vs A Garcia Alarcon |
| 1-0 | 37 | 2008 | Pan-American Continental | C18 French, Winawer |
| 16. A Escobar Forero vs D Arenas |
| ½-½ | 41 | 2008 | Pan-American Continental | D02 Queen's Pawn Game |
| 17. D Arenas vs E Santarius |
| 1-0 | 51 | 2008 | Pan-American Continental | C91 Ruy Lopez, Closed |
| 18. A Stripunsky vs D Arenas |
| 1-0 | 42 | 2008 | Pan-American Continental | B50 Sicilian |
| 19. Shabalov vs D Arenas |
| 1-0 | 26 | 2008 | Pan-American Continental | B20 Sicilian |
| 20. D Arenas vs M Robledo Gonzales |
| 1-0 | 29 | 2008 | Pan-American Continental | B80 Sicilian, Scheveningen |
| 21. S Barrientos Chavarriaga vs D Arenas |
| 0-1 | 24 | 2010 | Magistral Bicentenario | B70 Sicilian, Dragon Variation |
| 22. D Arenas vs D Flores |
| 0-1 | 37 | 2010 | Magistral Bicentenario | B12 Caro-Kann Defense |
| 23. A Escobar Forero vs D Arenas |
| 1-0 | 31 | 2010 | Magistral Bicentenario | A46 Queen's Pawn Game |
| 24. D Arenas vs E Cordova |
| 0-1 | 71 | 2010 | Magistral Bicentenario | C11 French |
| 25. A Romero Holmes vs D Arenas |
| 0-1 | 38 | 2010 | Magistral Bicentenario | B20 Sicilian |
Kibitzing
