| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 151. J Hartung-Nielsen vs M Matthiesen |
| 1-0 | 41 | 2017 | Xtracon Chess Open | B22 Sicilian, Alapin |
| 152. A Das vs J Hartung-Nielsen |
| 1-0 | 31 | 2017 | Xtracon Chess Open | B01 Scandinavian |
| 153. J Hartung-Nielsen vs U Larsen |
| 1-0 | 32 | 2017 | Xtracon Chess Open | A07 King's Indian Attack |
| 154. B Haldorsen vs J Hartung-Nielsen |
| 1-0 | 35 | 2017 | Xtracon Chess Open | B31 Sicilian, Rossolimo Variation |
| 155. J Hartung-Nielsen vs D Andersen |
| 1-0 | 47 | 2017 | Xtracon Chess Open | D11 Queen's Gambit Declined Slav |
| 156. M Horslund vs J Hartung-Nielsen |
| 0-1 | 35 | 2019 | Xtracon Open | B27 Sicilian |
| 157. J Hartung-Nielsen vs G Sargissian |
| 0-1 | 38 | 2019 | Xtracon Open | A07 King's Indian Attack |
| 158. S Steenstrup vs J Hartung-Nielsen |
| 0-1 | 37 | 2019 | Xtracon Open | E20 Nimzo-Indian |
| 159. J Hartung-Nielsen vs M Saltvedt |
| ½-½ | 33 | 2019 | Xtracon Open | B22 Sicilian, Alapin |
| 160. L Henningsen vs J Hartung-Nielsen |
| ½-½ | 56 | 2019 | Xtracon Open | E32 Nimzo-Indian, Classical |
Kibitzing
