| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. M Matuszewski vs K Piorun |
| ½-½ | 34 | 2017 | TCh-POL Ekstraliga | A45 Queen's Pawn Game |
| 52. R Kempinski vs M Matuszewski |
| 0-1 | 96 | 2017 | TCh-POL Ekstraliga | B10 Caro-Kann |
| 53. D Mastrovasilis vs M Matuszewski |
| ½-½ | 44 | 2017 | TCh-POL Ekstraliga | B28 Sicilian, O'Kelly Variation |
| 54. M Matuszewski vs R Cvek |
| 1-0 | 63 | 2017 | TCh-POL Ekstraliga | D93 Grunfeld, with Bf4 & e3 |
| 55. M Matuszewski vs K Piorun |
| ½-½ | 28 | 2019 | TCh-POL Ekstraliga | A45 Queen's Pawn Game |
| 56. J Tomczak vs M Matuszewski |
| 1-0 | 14 | 2019 | TCh-POL Ekstraliga | B28 Sicilian, O'Kelly Variation |
| 57. M Matuszewski vs T Petenyi |
| ½-½ | 29 | 2020 | TCh-SVK 2019-20 | A45 Queen's Pawn Game |
| 58. W Moranda vs M Matuszewski |
| ½-½ | 17 | 2020 | TCh-POL Ekstraliga | D10 Queen's Gambit Declined Slav |
| 59. V Plat vs M Matuszewski |
| 1-0 | 36 | 2020 | TCh-SVK 2019-20 | D10 Queen's Gambit Declined Slav |
Kibitzing
