| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. B Rabar vs E Joppen |
| ½-½ | 27 | 1954 | Belgrade | A81 Dutch |
| 27. E Joppen vs Petrosian |
 | 0-1 | 40 | 1954 | Belgrade | C16 French, Winawer |
| 28. N Karaklajic vs E Joppen |
| 0-1 | 32 | 1954 | Belgrade | B64 Sicilian, Richter-Rauzer Attack |
| 29. E Joppen vs R G Wade |
| 1-0 | 35 | 1954 | Belgrade | C18 French, Winawer |
| 30. Barcza vs E Joppen |
| ½-½ | 74 | 1954 | Belgrade | D78 Neo-Grunfeld, 6.O-O c6 |
| 31. E Joppen vs S Nedeljkovic |
| 1-0 | 70 | 1954 | Belgrade | C90 Ruy Lopez, Closed |
| 32. B Milic vs E Joppen |
| ½-½ | 40 | 1954 | Belgrade | E97 King's Indian |
| 33. E Joppen vs Ivkov |
| ½-½ | 40 | 1954 | Belgrade | C84 Ruy Lopez, Closed |
| 34. A Matanovic vs E Joppen |
| 1-0 | 66 | 1954 | Belgrade | B64 Sicilian, Richter-Rauzer Attack |
| 35. E Joppen vs E Nievergelt |
| 0-1 | 62 | 1954 | Belgrade | C41 Philidor Defense |
| 36. B Milic vs E Joppen |
| 1-0 | 39 | 1954 | FRG-YUG | B64 Sicilian, Richter-Rauzer Attack |
| 37. R Llorens vs E Joppen |
| 0-1 | 57 | 1955 | Luxembourg | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 38. E Joppen vs Schneider |
| 1-0 | 24 | 1958 | West Germany | B76 Sicilian, Dragon, Yugoslav Attack |
| 39. E Joppen vs H van Donk |
| 1-0 | 14 | 1959 | NED-FRG | C84 Ruy Lopez, Closed |
| 40. K Darga vs E Joppen |
| 1-0 | 31 | 1961 | FRG-ch 06th | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 41. E Joppen vs D Hottes |
| ½-½ | 22 | 1961 | FRG-ch 06th | B54 Sicilian |
| 42. G Pfeiffer vs E Joppen |
| ½-½ | 19 | 1961 | FRG-ch 06th | A89 Dutch, Leningrad, Main Variation with Nc6 |
| 43. N Cortlever vs E Joppen |
| 0-1 | 39 | 1962 | FRG-NED | B32 Sicilian |
| 44. E Joppen vs N Cortlever |
| ½-½ | 21 | 1962 | FRG-NED | B18 Caro-Kann, Classical |
| 45. S Wagman vs E Joppen |
| 1-0 | 24 | 1977 | Biel op | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
Kibitzing
