| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 151. Y Masserey vs A Allemann |
| 1-0 | 37 | 2001 | Biel MTO Open | B70 Sicilian, Dragon Variation |
| 152. Y Masserey vs S Guliev |
| 0-1 | 42 | 2001 | Biel MTO Open | B14 Caro-Kann, Panov-Botvinnik Attack |
| 153. Y Masserey vs D Komarov |
| 0-1 | 27 | 2002 | Valle d'Aosta Open | B33 Sicilian |
| 154. Y Masserey vs A Mirzoev |
| ½-½ | 25 | 2002 | Valle d'Aosta Open | B43 Sicilian, Kan, 5.Nc3 |
| 155. V Lazarev vs Y Masserey |
| 0-1 | 47 | 2002 | Valle d'Aosta Open | D12 Queen's Gambit Declined Slav |
| 156. H Speck vs Y Masserey |
| 0-1 | 38 | 2002 | Biel MTO op | B40 Sicilian |
| 157. Y Masserey vs L Bergez |
| 1-0 | 20 | 2005 | Geneve op | B55 Sicilian, Prins Variation, Venice Attack |
| 158. E Alekseev vs Y Masserey |
| 1-0 | 34 | 2005 | Biel GM | E11 Bogo-Indian Defense |
| 159. N Giertz vs Y Masserey |
| 1-0 | 68 | 2005 | MTO Open | A46 Queen's Pawn Game |
| 160. Y Masserey vs J Sondermann |
| 1-0 | 62 | 2005 | MTO Open | B54 Sicilian |
| 161. J Knightson vs Y Masserey |
| 0-1 | 35 | 2005 | European Club Cup | C03 French, Tarrasch |
| 162. Y Masserey vs L Pantsulaia |
| 0-1 | 39 | 2005 | European Club Cup | B13 Caro-Kann, Exchange |
| 163. Y Masserey vs M R Taylor |
| 1-0 | 33 | 2005 | European Club Cup | A13 English |
| 164. B Socko vs Y Masserey |
| 1-0 | 45 | 2005 | European Club Cup | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 165. Y Masserey vs D Jacimovic |
| ½-½ | 15 | 2005 | European Club Cup | C04 French, Tarrasch, Guimard Main line |
| 166. J Wendt vs Y Masserey |
| ½-½ | 64 | 2005 | European Club Cup | D17 Queen's Gambit Declined Slav |
| 167. Y Masserey vs J Trevelyan |
| 1-0 | 21 | 2005 | European Club Cup | B07 Pirc |
Kibitzing
