| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. P Prohaszka vs S Mazur |
| 1-0 | 31 |
2008 |
EU-ch U16 18th | D43 Queen's Gambit Declined Semi-Slav |
| 2. S Mazur vs M Sieciechowicz |
 | 1-0 | 56 |
2008 |
EU-ch U16 18th | C05 French, Tarrasch |
| 3. G De Schampheleire vs S Mazur |
| 0-1 | 68 |
2008 |
EU-ch U16 18th | D52 Queen's Gambit Declined |
| 4. S Mazur vs M Kanarek |
| ½-½ | 98 |
2008 |
EU-ch U16 18th | B32 Sicilian |
| 5. A Rombaldoni vs S Mazur |
| ½-½ | 62 |
2008 |
EU-ch U16 18th | B42 Sicilian, Kan |
| 6. A Jakubiec vs S Mazur |
| 1-0 | 33 |
2010 |
XXI Cracow Open | A22 English |
| 7. S Mazur vs M Kanarek |
| 0-1 | 46 |
2010 |
WYCC Open U18 | C67 Ruy Lopez |
| 8. S Mazur vs P Idani |
| ½-½ | 36 |
2010 |
WYCC Open U18 | B92 Sicilian, Najdorf, Opocensky Variation |
| 9. S Zierk vs S Mazur |
| 1-0 | 61 |
2010 |
WYCC Open U18 | B89 Sicilian |
| 10. A Salem vs S Mazur |
| ½-½ | 34 |
2010 |
WYCC Open U18 | E81 King's Indian, Samisch |
| 11. S Mazur vs M Yilmaz |
| 1-0 | 33 |
2010 |
WYCC Open U18 | A67 Benoni, Taimanov Variation |
| 12. A Tomazini vs S Mazur |
| 0-1 | 42 |
2010 |
WYCC Open U18 | E60 King's Indian Defense |
| 13. S Mazur vs K Nuri |
| 1-0 | 31 |
2010 |
WYCC Open U18 | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 14. S P Sethuraman vs S Mazur |
| ½-½ | 20 |
2010 |
WYCC Open U18 | E71 King's Indian, Makagonov System (5.h3) |
| 15. P Michalik vs S Mazur |
| 1-0 | 28 |
2010 |
TCh-SVK Extraliga -11 | E63 King's Indian, Fianchetto, Panno Variation |
| 16. B Nuber vs S Mazur |
| ½-½ | 48 |
2010 |
WYCC Open U18 | C55 Two Knights Defense |
| 17. S Mazur vs C Cruz |
| 1-0 | 30 |
2010 |
WYCC Open U18 | B93 Sicilian, Najdorf, 6.f4 |
| 18. D Vocaturo vs S Mazur |
 | 1-0 | 43 |
2011 |
12th European Individual Championship | C55 Two Knights Defense |
| 19. S Mazur vs R Rapport |
| 0-1 | 30 |
2011 |
12th European Individual Championship | E94 King's Indian, Orthodox |
| 20. F Osmanodja vs S Mazur |
| 0-1 | 45 |
2011 |
12th European Individual Championship | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 21. S Mazur vs J Markos |
| 0-1 | 30 |
2011 |
12th European Individual Championship | B03 Alekhine's Defense |
| 22. S Mazur vs A Moiseenko |
| 0-1 | 50 |
2011 |
12th European Individual Championship | B32 Sicilian |
| 23. D Swiercz vs S Mazur |
| 0-1 | 28 |
2011 |
12th European Individual Championship | E63 King's Indian, Fianchetto, Panno Variation |
| 24. S Mazur vs S Lacour |
| ½-½ | 33 |
2011 |
12th European Individual Championship | B32 Sicilian |
| 25. A Leniart vs S Mazur |
| 0-1 | 47 |
2012 |
Int Open ch-SVK | B12 Caro-Kann Defense |