| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J Dahm vs H Rau |
| 1-0 | 35 |
2000 |
GER-chT U20 | B22 Sicilian, Alapin |
| 2. G Dalaklis vs H Rau |
| 0-1 | 41 |
2001 |
EYCC B16 | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 3. N Ferrari vs H Rau |
| 0-1 | 37 |
2001 |
TCh-Europe Boys U18 | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 4. N Djukic vs H Rau |
| ½-½ | 53 |
2001 |
TCh-Europe Boys U18 | E32 Nimzo-Indian, Classical |
| 5. Areshchenko vs H Rau |
| 1-0 | 48 |
2001 |
TCh-Europe Boys U18 | B57 Sicilian |
| 6. H Rau vs A Graf |
| 0-1 | 62 |
2001 |
5th Neckar Open | A42 Modern Defense, Averbakh System |
| 7. H Rau vs V Jianu |
| 0-1 | 40 |
2001 |
TCh-Europe Boys U18 | E94 King's Indian, Orthodox |
| 8. H Rau vs D Gjuran |
| 0-1 | 44 |
2001 |
EYCC B16 | D55 Queen's Gambit Declined |
| 9. D Arman vs H Rau |
| 0-1 | 40 |
2001 |
TCh-Europe Boys U18 | B57 Sicilian |
| 10. T Nyback vs H Rau |
| 1-0 | 50 |
2001 |
EYCC B16 | A04 Reti Opening |
| 11. H Rau vs J Jirka |
| 1-0 | 34 |
2001 |
TCh-Europe Boys U18 | D15 Queen's Gambit Declined Slav |
| 12. S Papa vs H Rau |
| ½-½ | 86 |
2003 |
Zug SUI | B66 Sicilian, Richter-Rauzer Attack, 7...a6 |
| 13. H Rau vs G Nierlich |
| 1-0 | 38 |
2003 |
Staufer Open 15th | D35 Queen's Gambit Declined |
| 14. A Flumbort vs H Rau |
| 1-0 | 38 |
2003 |
Zug SUI | E15 Queen's Indian |
| 15. H Rau vs Alex Hort |
| 1-0 | 58 |
2003 |
GER-ch U18 | E97 King's Indian |
| 16. O Lemmers vs H Rau |
| ½-½ | 60 |
2004 |
Bundesliga 0405 | B22 Sicilian, Alapin |
| 17. K Akshat vs H Rau |
| ½-½ | 21 |
2005 |
World Junior Championship (Boys) | E21 Nimzo-Indian, Three Knights |
| 18. H Rau vs D Frolyanov |
| ½-½ | 30 |
2005 |
Harmonie Chess Tournament | D30 Queen's Gambit Declined |
| 19. H Rau vs S Moosavian |
| 1-0 | 22 |
2005 |
World Junior Championship (Boys) | A70 Benoni, Classical with 7.Nf3 |
| 20. H Rau vs N Samakov |
| ½-½ | 42 |
2005 |
World Junior Championship (Boys) | D27 Queen's Gambit Accepted, Classical |
| 21. H Rau vs S Zhigalko |
| 0-1 | 103 |
2005 |
World Junior Championship (Boys) | E32 Nimzo-Indian, Classical |
| 22. D Jojua vs H Rau |
| 0-1 | 47 |
2005 |
World Junior Championship (Boys) | E12 Queen's Indian |
| 23. F Zeynalov vs H Rau |
| ½-½ | 54 |
2005 |
World Junior Championship (Boys) | A16 English |
| 24. B Predojevic vs H Rau |
| ½-½ | 81 |
2005 |
World Junior Championship (Boys) | B62 Sicilian, Richter-Rauzer |
| 25. H Rau vs Wang Yue |
 | 0-1 | 14 |
2005 |
World Junior Championship (Boys) | D11 Queen's Gambit Declined Slav |