| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. M Fraschini vs J Hobaica |
| 1-0 | 42 | 1991 | Buenos Aires Konex Canon Open | E69 King's Indian, Fianchetto, Classical Main line |
| 2. G Llanos vs J Hobaica |
| 1-0 | 30 | 1991 | Buenos Aires Konex Canon Open | E98 King's Indian, Orthodox, Taimanov, 9.Ne1 |
| 3. J Hobaica vs M Reides |
| 0-1 | 43 | 1991 | Buenos Aires Konex Canon Open | A54 Old Indian, Ukrainian Variation, 4.Nf3 |
| 4. J Hobaica vs J Rosito |
| 1-0 | 37 | 1993 | Mar del Plata op | E38 Nimzo-Indian, Classical, 4...c5 |
| 5. P Zarnicki vs J Hobaica |
| 1-0 | 53 | 1994 | Buenos Aires PRENAJ | B18 Caro-Kann, Classical |
| 6. F Peralta vs J Hobaica |
| 1-0 | 13 | 1998 | Mar del Plata op | D10 Queen's Gambit Declined Slav |
| 7. J Hobaica vs J Rosito |
| 1-0 | 21 | 1999 | XXX International Open, Mar del Plata A | A45 Queen's Pawn Game |
| 8. J Hobaica vs S Slipak |
| 0-1 | 49 | 1999 | XXX Mar del Plata International | C45 Scotch Game |
| 9. A Giaccio vs J Hobaica |
| 1-0 | 49 | 2000 | Mar del Plata op 31st | B93 Sicilian, Najdorf, 6.f4 |
| 10. J Hobaica vs Panno |
| 0-1 | 34 | 2001 | 1st Masters | A40 Queen's Pawn Game |
| 11. A Hoffman vs J Hobaica |
| ½-½ | 69 | 2001 | 1st Masters | D15 Queen's Gambit Declined Slav |
| 12. J Hobaica vs L Rodi |
| 0-1 | 59 | 2001 | 1st Masters | A45 Queen's Pawn Game |
| 13. J Hobaica vs C Garcia Palermo |
| 1-0 | 35 | 2001 | 1st Masters | D30 Queen's Gambit Declined |
| 14. Andersson vs J Hobaica |
| 1-0 | 70 | 2001 | 1st Masters | D15 Queen's Gambit Declined Slav |
| 15. J Hobaica vs Larsen |
| 0-1 | 82 | 2001 | 1st Masters | A45 Queen's Pawn Game |
| 16. S Giardelli vs J Hobaica |
| 1-0 | 52 | 2001 | 1st Masters | A11 English, Caro-Kann Defensive System |
| 17. J Hobaica vs J Szmetan |
| 0-1 | 44 | 2001 | 1st Masters | B03 Alekhine's Defense |
| 18. P Ricardi vs J Hobaica |
| 1-0 | 40 | 2001 | 1st Masters | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 19. J Hobaica vs B Roselli Mailhe |
| ½-½ | 49 | 2001 | 1st Masters | C71 Ruy Lopez |
| 20. H van Riemsdijk vs J Hobaica |
 | 1-0 | 21 | 2001 | 1st Masters | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 21. J Hobaica vs S Giardelli |
| 0-1 | 35 | 2001 | Mar del Plata Open | A07 King's Indian Attack |
| 22. R Felgaer vs J Hobaica |
| ½-½ | 25 | 2003 | American Continental | B43 Sicilian, Kan, 5.Nc3 |
| 23. J Hobaica vs H Spangenberg |
| 0-1 | 36 | 2003 | American Continental | A77 Benoni, Classical, 9...Re8, 10.Nd2 |
| 24. J Hobaica vs C Castaneda |
| 1-0 | 38 | 2003 | American Continental | A45 Queen's Pawn Game |
| 25. J Nogueiras vs J Hobaica |
| 1-0 | 20 | 2003 | American Continental | A06 Reti Opening |
Kibitzing
