| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. R Antonio vs John Lang |
| 1-0 | 28 |
1988 |
East Detroit Open | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 2. B Selitsky vs R Antonio |
| 0-1 | 33 |
1988 |
East Detroit Open | A07 King's Indian Attack |
| 3. R Antonio vs F Lahr |
| 1-0 | 38 |
1988 |
East Detroit Open | B40 Sicilian |
| 4. T Mazuchowski vs R Antonio |
| 0-1 | 24 |
1988 |
East Detroit Open | B10 Caro-Kann |
| 5. R Antonio vs M Kaabi |
| 1-0 | 44 |
1990 |
Novi Sad ol (Men) | C68 Ruy Lopez, Exchange |
| 6. R Antonio vs N Ferreira |
 | 1-0 | 37 |
1990 |
Novi Sad ol (Men) | C69 Ruy Lopez, Exchange, Gligoric Variation, 6.d4 |
| 7. R Antonio vs O Renet |
| 1-0 | 28 |
1990 |
Novi Sad ol (Men) | B22 Sicilian, Alapin |
| 8. Wojtkiewicz vs R Antonio |
| 0-1 | 60 |
1991 |
Bacolod | A15 English |
| 9. Adianto vs R Antonio |
| 0-1 | 32 |
1993 |
Baguio | E69 King's Indian, Fianchetto, Classical Main line |
| 10. R Antonio vs D Liu |
| 1-0 | 31 |
1994 |
Jakarta, Cat.10 | C45 Scotch Game |
| 11. R Antonio vs Tkachiev |
| 1-0 | 30 |
1994 |
Jakarta, Cat.10 | B06 Robatsch |
| 12. R Antonio vs Blatny |
| 1-0 | 40 |
1994 |
Jakarta | C47 Four Knights |
| 13. V Rajlich vs R Antonio |
| 0-1 | 41 |
1995 |
Troy Chess Classic | B13 Caro-Kann, Exchange |
| 14. R Antonio vs D Moody |
| 1-0 | 9 |
1995 |
Troy Chess Classic | C48 Four Knights |
| 15. Zaremba vs R Antonio |
| 0-1 | 24 |
1995 |
Troy Chess Classic | E21 Nimzo-Indian, Three Knights |
| 16. R Antonio vs J Brooks |
| 1-0 | 56 |
1995 |
Troy Chess Classic | B22 Sicilian, Alapin |
| 17. Bagirov vs R Antonio |
| 0-1 | 59 |
1996 |
Yerevan ARM,32nd ol | A13 English |
| 18. Dao Thien Hai vs R Antonio |
| 0-1 | 28 |
1998 |
Zonal 3.2 | E38 Nimzo-Indian, Classical, 4...c5 |
| 19. Adianto vs R Antonio |
| 0-1 | 65 |
1998 |
Zonal 3.2 | E69 King's Indian, Fianchetto, Classical Main line |
| 20. R Antonio vs N Myo |
| 1-0 | 62 |
1998 |
Zonal 3.2 | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 21. R Antonio vs D Liu |
| 1-0 | 73 |
1998 |
Zonal 3.2 First Playoff | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 22. R Antonio vs Zaw Oo |
| 1-0 | 28 |
1998 |
Zonal 3.2 | B07 Pirc |
| 23. D Sharavdorj vs R Antonio |
| 0-1 | 50 |
1998 |
Zonal 3.2 First Playoff | A17 English |
| 24. R Antonio vs Tat Thang Dang |
| 1-0 | 42 |
1998 |
Zonal 3.2 | C78 Ruy Lopez |
| 25. R Antonio vs E Ortiz |
| 1-0 | 27 |
1999 |
Ch Philippines, Quezon City (Philippines) | B23 Sicilian, Closed |
