| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 126. R Edouard vs J Thomassen |
| 1-0 | 28 | 2011 | Gibraltar Masters | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 127. J Thomassen vs H Groffen |
| 1-0 | 43 | 2011 | Gibraltar Masters | D12 Queen's Gambit Declined Slav |
| 128. F Vallejo Pons vs J Thomassen |
| 1-0 | 20 | 2011 | Gibraltar Masters | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 129. J Thomassen vs A Aerni |
| 1-0 | 23 | 2011 | Gibraltar Masters | D37 Queen's Gambit Declined |
| 130. V Sipila vs J Thomassen |
| 1-0 | 34 | 2011 | Gibraltar Masters | B97 Sicilian, Najdorf |
| 131. J Thomassen vs E Vaarala |
| 1-0 | 45 | 2011 | Gibraltar Masters | D11 Queen's Gambit Declined Slav |
| 132. M Hunt vs J Thomassen |
| 0-1 | 15 | 2011 | 4NCL 2010/11 | A48 King's Indian |
| 133. L Messam-Sparks vs J Thomassen |
| 0-1 | 37 | 2011 | 4NCL 2010/11 | E77 King's Indian |
| 134. J Thomassen vs D Calder |
| 1-0 | 29 | 2011 | Reykjavik Open | C77 Ruy Lopez |
| 135. S Mihajlov vs J Thomassen |
| 0-1 | 33 | 2011 | Reykjavik Open | E94 King's Indian, Orthodox |
| 136. J Thomassen vs H Danielsen |
 | ½-½ | 153 | 2011 | Reykjavik Open | E91 King's Indian |
| 137. I Nyzhnyk vs J Thomassen |
| 1-0 | 43 | 2011 | Reykjavik Open | E62 King's Indian, Fianchetto |
| 138. J Thomassen vs N Spaan |
| 1-0 | 67 | 2011 | Reykjavik Open | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 139. A Gupta vs J Thomassen |
| 1-0 | 85 | 2011 | Reykjavik Open | E81 King's Indian, Samisch |
| 140. J Thomassen vs K Holm |
| ½-½ | 20 | 2011 | Reykjavik Open | B27 Sicilian |
| 141. T Thorsteinsson vs J Thomassen |
| 0-1 | 24 | 2011 | Reykjavik Open | B53 Sicilian |
| 142. J Thomassen vs Miroshnichenko |
| 0-1 | 47 | 2011 | Reykjavik Open | B63 Sicilian, Richter-Rauzer Attack |
| 143. J Thomassen vs H Sjol |
| 1-0 | 22 | 2012 | Reykjavik Open | D02 Queen's Pawn Game |
| 144. C Eriksson vs J Thomassen |
| ½-½ | 36 | 2012 | Reykjavik Open | B22 Sicilian, Alapin |
| 145. J Thomassen vs M Dougherty |
| 1-0 | 35 | 2012 | Reykjavik Open | B06 Robatsch |
| 146. H Stefansson vs J Thomassen |
| ½-½ | 43 | 2012 | Reykjavik Open | E63 King's Indian, Fianchetto, Panno Variation |
| 147. J Thomassen vs Avrukh |
| 0-1 | 33 | 2012 | Reykjavik Open | C95 Ruy Lopez, Closed, Breyer |
| 148. H Loftsson vs J Thomassen |
| 0-1 | 56 | 2012 | Reykjavik Open | A26 English |
| 149. J Thomassen vs F Perez |
| 0-1 | 26 | 2012 | Reykjavik Open | B49 Sicilian, Taimanov Variation |
| 150. E Vaarala vs J Thomassen |
| 1-0 | 24 | 2012 | Reykjavik Open | A25 English |
Kibitzing
