Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. R Hartoch vs M Schoeneberg |
| ½-½ | 44 | 1965 | Wch U20 f-A | B28 Sicilian, O'Kelly Variation |
27. I Farago vs R Hartoch |
| ½-½ | 12 | 1965 | Wch U20 f-A | A53 Old Indian |
28. R Hartoch vs B Kurajica |
| 1-0 | 41 | 1965 | Wch U20 f-A | B28 Sicilian, O'Kelly Variation |
29. R Hartoch vs A Zwaig |
| ½-½ | 41 | 1965 | Wch U20 f-A | B09 Pirc, Austrian Attack |
30. L Bronstein vs R Hartoch |
| 0-1 | 27 | 1965 | Wch U20 f-A | E97 King's Indian |
31. R Hartoch vs P M Jamieson |
| 1-0 | 29 | 1965 | Wch U20 q-3 | B93 Sicilian, Najdorf, 6.f4 |
32. D Minic vs R Hartoch |
| ½-½ | 25 | 1965 | EUR-chT (Men) 3rd | C45 Scotch Game |
33. R Hartoch vs L Navarovszky |
| ½-½ | 20 | 1965 | EUR-chT (Men) 3rd | B40 Sicilian |
34. R Hartoch vs G Fahnenschmidt |
| ½-½ | 32 | 1965 | EUR-chT (Men) 3rd | C93 Ruy Lopez, Closed, Smyslov Defense |
35. Boleslavsky vs R Hartoch |
| 1-0 | 31 | 1965 | EUR-chT (Men) 3rd | C91 Ruy Lopez, Closed |
36. R Hartoch vs I Buljovcic |
| 0-1 | 49 | 1965 | EUR-chT (Men) 3rd | B50 Sicilian |
37. R Hartoch vs Lutikov |
 | 0-1 | 46 | 1965 | EUR-chT (Men) 3rd | C71 Ruy Lopez |
38. R Hartoch vs C Orbaan |
| ½-½ | 24 | 1965 | Amsterdam IBM-B | B50 Sicilian |
39. R Hartoch vs G Szilagyi |
| 0-1 | 56 | 1965 | Amsterdam IBM-B | B60 Sicilian, Richter-Rauzer |
40. K Plater vs R Hartoch |
| ½-½ | 49 | 1965 | Amsterdam IBM-B | B07 Pirc |
41. R Hartoch vs B Milic |
| 0-1 | 36 | 1965 | Amsterdam IBM-B | B80 Sicilian, Scheveningen |
42. J G Karper vs R Hartoch |
| 0-1 | 129 | 1965 | Amsterdam IBM-B | A54 Old Indian, Ukrainian Variation, 4.Nf3 |
43. R Hartoch vs R de Graaff |
| 1-0 | 36 | 1965 | Amsterdam IBM-B | B29 Sicilian, Nimzovich-Rubinstein |
44. P de Rooi vs R Hartoch |
| ½-½ | 66 | 1965 | Amsterdam IBM-B | E91 King's Indian |
45. R Hartoch vs T Ghitescu |
| 0-1 | 42 | 1965 | Amsterdam IBM-B | B62 Sicilian, Richter-Rauzer |
46. J Enevoldsen vs R Hartoch |
| ½-½ | 26 | 1965 | Amsterdam IBM-B | C78 Ruy Lopez |
47. R Hartoch vs Tukmakov |
| ½-½ | 64 | 1965 | Wch U20 f-A | C77 Ruy Lopez |
48. Huebner vs R Hartoch |
| ½-½ | 33 | 1965 | Wch U20 f-A | A05 Reti Opening |
49. R Hartoch vs H Mueller |
| ½-½ | 22 | 1966 | Amsterdam IBM-B | A07 King's Indian Attack |
50. P Ostojic vs R Hartoch |
| 1-0 | 75 | 1966 | Amsterdam IBM-B | C91 Ruy Lopez, Closed |