| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Tomczak vs M Adamczewski |
| 1-0 | 21 | 2012 | 12th MetLife Amplico European (Rapid) | B33 Sicilian |
| 2. M Adamczewski vs F Meissner |
| 0-1 | 26 | 2017 | European Blitz Championship | E94 King's Indian, Orthodox |
| 3. F Meissner vs M Adamczewski |
| 1-0 | 37 | 2017 | European Blitz Championship | C03 French, Tarrasch |
| 4. K Kahleys vs M Adamczewski |
| 0-1 | 16 | 2017 | European Blitz Championship | E62 King's Indian, Fianchetto |
| 5. M Adamczewski vs K Kahleys |
| 0-1 | 53 | 2017 | European Blitz Championship | D15 Queen's Gambit Declined Slav |
| 6. M Adamczewski vs M Narva |
| 0-1 | 51 | 2017 | European Blitz Championship | D37 Queen's Gambit Declined |
| 7. M Narva vs M Adamczewski |
 | 1-0 | 72 | 2017 | European Blitz Championship | C02 French, Advance |
| 8. S Gumularz vs M Adamczewski |
| 1-0 | 44 | 2021 | European Rapid Championship | C01 French, Exchange |
| 9. V Bernadskiy vs M Adamczewski |
| 1-0 | 43 | 2021 | European Rapid Championship | A45 Queen's Pawn Game |
| 10. M Adamczewski vs R Lubczynski |
| ½-½ | 23 | 2021 | European Rapid Championship | D15 Queen's Gambit Declined Slav |
| 11. M Adamczewski vs A Druckenthaner |
| 0-1 | 61 | 2021 | European Rapid Championship | A80 Dutch |
| 12. P Stremavicius vs M Adamczewski |
| 1-0 | 49 | 2022 | European Blitz Chess Championship | C01 French, Exchange |
| 13. M Adamczewski vs P Stremavicius |
| 1-0 | 51 | 2022 | European Blitz Chess Championship | A41 Queen's Pawn Game (with ...d6) |
| 14. M Adamczewski vs J Spalir |
| 0-1 | 34 | 2022 | European Blitz Chess Championship | D50 Queen's Gambit Declined |
| 15. J Spalir vs M Adamczewski |
| 0-1 | 53 | 2022 | European Blitz Chess Championship | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 16. K Arkell vs M Adamczewski |
| 0-1 | 53 | 2022 | European Blitz Chess Championship | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 17. M Adamczewski vs K Arkell |
| ½-½ | 55 | 2022 | European Blitz Chess Championship | E00 Queen's Pawn Game |
| 18. M Adamczewski vs D Czerw |
| 1-0 | 34 | 2022 | European Blitz Chess Championship | A57 Benko Gambit |
| 19. D Czerw vs M Adamczewski |
| 0-1 | 40 | 2022 | European Blitz Chess Championship | E61 King's Indian |
| 20. H A Gretarsson vs M Adamczewski |
| 1-0 | 33 | 2022 | European Blitz Chess Championship | E76 King's Indian, Four Pawns Attack |
| 21. M Adamczewski vs H A Gretarsson |
| 1-0 | 46 | 2022 | European Blitz Chess Championship | E33 Nimzo-Indian, Classical |
| 22. M Adamczewski vs L D'Costa |
| 0-1 | 28 | 2022 | European Blitz Chess Championship | E38 Nimzo-Indian, Classical, 4...c5 |
| 23. M Adamczewski vs D Gavrilescu |
| 0-1 | 35 | 2022 | European Blitz Chess Championship | D31 Queen's Gambit Declined |
| 24. D Gavrilescu vs M Adamczewski |
| 1-0 | 37 | 2022 | European Blitz Chess Championship | C02 French, Advance |
| 25. A Stefanova vs M Adamczewski |
| 1-0 | 62 | 2022 | European Rapid Chess Championship | A49 King's Indian, Fianchetto without c4 |
Kibitzing
