| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 126. M Matthiesen vs D Kollars |
| 0-1 | 34 | 2016 | Aarhus Chess House GM | E11 Bogo-Indian Defense |
| 127. M Matthiesen vs S Ovsejevitsch |
| 1-0 | 22 | 2016 | Aarhus Chess House GM | D31 Queen's Gambit Declined |
| 128. J B Bjerre vs M Matthiesen |
| 0-1 | 71 | 2017 | Aarhus Chess House IM | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 129. M Matthiesen vs R Saetre |
| ½-½ | 53 | 2017 | Xtracon Chess Open | A52 Budapest Gambit |
| 130. Sindhu Pankaj vs M Matthiesen |
| 1-0 | 47 | 2017 | Xtracon Chess Open | E84 King's Indian, Samisch, Panno Main line |
| 131. M Matthiesen vs E Loveid |
| 1-0 | 21 | 2017 | Xtracon Chess Open | B07 Pirc |
| 132. O Ukkelberg vs M Matthiesen |
| 0-1 | 32 | 2017 | Xtracon Chess Open | A07 King's Indian Attack |
| 133. M Matthiesen vs J B Nielsen |
| 1-0 | 36 | 2017 | Xtracon Chess Open | B07 Pirc |
| 134. J Hartung-Nielsen vs M Matthiesen |
| 1-0 | 41 | 2017 | Xtracon Chess Open | B22 Sicilian, Alapin |
| 135. N Hoti vs M Matthiesen |
| 1-0 | 37 | 2017 | Xtracon Chess Open | B15 Caro-Kann |
| 136. M Matthiesen vs H E Rasmussen |
| 1-0 | 52 | 2017 | Xtracon Chess Open | A39 English, Symmetrical, Main line with d4 |
| 137. J Kocur vs M Matthiesen |
| 0-1 | 29 | 2017 | Xtracon Chess Open | A04 Reti Opening |
| 138. M Matthiesen vs C Eriksson |
| ½-½ | 41 | 2017 | Xtracon Chess Open | D02 Queen's Pawn Game |
| 139. M Matthiesen vs T Hillarp Persson |
| 0-1 | 51 | 2017 | 56th TCh-DEN Ex -18 | A65 Benoni, 6.e4 |
| 140. A S Rasmussen vs M Matthiesen |
| 1-0 | 36 | 2017 | 56th TCh-DEN Ex -18 | C84 Ruy Lopez, Closed |
| 141. M Matthiesen vs D Kollars |
| 0-1 | 30 | 2018 | Aarhus Chess House GM | D02 Queen's Pawn Game |
| 142. M Matthiesen vs E Vorobiov |
| 0-1 | 39 | 2018 | Aarhus Chess House GM | E12 Queen's Indian |
| 143. A S Rasmussen vs M Matthiesen |
| 1-0 | 22 | 2019 | 57th TCh-DEN Ex 2018-19 | D11 Queen's Gambit Declined Slav |
| 144. H Tolba vs M Matthiesen |
| ½-½ | 33 | 2019 | Xtracon Open | E90 King's Indian |
| 145. M Matthiesen vs T W Jensen |
| 1-0 | 41 | 2019 | Xtracon Open | D18 Queen's Gambit Declined Slav, Dutch |
| 146. Eskil Nilsson vs M Matthiesen |
| 1-0 | 42 | 2019 | Xtracon Open | B31 Sicilian, Rossolimo Variation |
| 147. M Matthiesen vs L Hyldkrog |
| 1-0 | 45 | 2019 | Xtracon Open | E32 Nimzo-Indian, Classical |
| 148. U Larsen vs M Matthiesen |
| 0-1 | 25 | 2019 | Xtracon Open | B13 Caro-Kann, Exchange |
| 149. M Matthiesen vs T Rostgaard |
| 0-1 | 38 | 2019 | Xtracon Open | E11 Bogo-Indian Defense |
| 150. O Johnsen vs M Matthiesen |
| 0-1 | 35 | 2019 | Xtracon Open | D02 Queen's Pawn Game |
Kibitzing
