| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J Bethmann vs R Markus |
| ½-½ | 15 |
1989 |
WO 013 | C33 King's Gambit Accepted |
| 2. M Burschowsky vs R Markus |
| 0-1 | 35 |
1994 |
Wch U12 | A10 English |
| 3. R Markus vs B Hajdu |
| ½-½ | 26 |
1994 |
Wch U12 | B31 Sicilian, Rossolimo Variation |
| 4. Roy Schoemans vs R Markus |
| 0-1 | 46 |
1994 |
Wch U12 | A80 Dutch |
| 5. H Graefe vs R Markus |
| 0-1 | 13 |
1994 |
CIF corr | A01 Nimzovich-Larsen Attack |
| 6. R Markus vs D Bunzmann |
| ½-½ | 24 |
1994 |
Wch U12 | B32 Sicilian |
| 7. R Markus vs Kanep |
| 0-1 | 59 |
1994 |
Wch U12 | B95 Sicilian, Najdorf, 6...e6 |
| 8. R Markus vs Ponomariov |
| 0-1 | 27 |
1994 |
Wch U12 | B02 Alekhine's Defense |
| 9. Grischuk vs R Markus |
| 1-0 | 30 |
1994 |
Wch U12 | C42 Petrov Defense |
| 10. Said Aktouf vs R Markus |
| 0-1 | 69 |
1994 |
Wch U12 | A85 Dutch, with c4 & Nc3 |
| 11. S Guliev vs R Markus |
| ½-½ | 39 |
1994 |
Wch U12 | A83 Dutch, Staunton Gambit |
| 12. R Markus vs H Graefe |
| 1-0 | 26 |
1995 |
CIF FT email | C44 King's Pawn Game |
| 13. R Markus vs G Pierdant Gonzalez |
| 1-0 | 21 |
1995 |
Wch U12 | B22 Sicilian, Alapin |
| 14. L E Johannessen vs R Markus |
 | 1-0 | 12 |
1995 |
Olympiad (under 16) | A87 Dutch, Leningrad, Main Variation |
| 15. R Markus vs A Ramirez |
| 0-1 | 33 |
1995 |
Canaries ol U16 | C05 French, Tarrasch |
| 16. R Markus vs M Zerdo |
| 0-1 | 30 |
1995 |
Canaries ol U16 | C82 Ruy Lopez, Open |
| 17. R Merino Garcia vs R Markus |
| 1-0 | 42 |
1995 |
Canaries ol U16 | A88 Dutch, Leningrad, Main Variation with c6 |
| 18. R Markus vs J Andrade Ocana |
| 1-0 | 44 |
1995 |
Canaries ol U16 | C42 Petrov Defense |
| 19. R Markus vs Jan Kupec |
| 1-0 | 32 |
1995 |
CIF FT email | B06 Robatsch |
| 20. C Horvath vs R Markus |
| 1-0 | 35 |
1996 |
Spring op | A81 Dutch |
| 21. Dao Thien Hai vs R Markus |
| 1-0 | 49 |
1996 |
Spring op | A57 Benko Gambit |
| 22. R Markus vs A Nadassy |
| 1-0 | 33 |
1997 |
Tapolca op | A50 Queen's Pawn Game |
| 23. R Markus vs G Horvath |
| 1-0 | 37 |
1997 |
Tapolca op | E82 King's Indian, Samisch, double Fianchetto Variation |
| 24. R Markus vs S Kustar |
| ½-½ | 43 |
1997 |
Tapolca op | B22 Sicilian, Alapin |
| 25. R Markus vs A Parkanyi |
| 1-0 | 42 |
1997 |
Tapolca op | B22 Sicilian, Alapin |