| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. A Summerscale vs S Ernst |
| 0-1 | 24 |
1996 |
Groningen open | A57 Benko Gambit |
| 2. M Smits vs S Ernst |
| 0-1 | 54 |
1997 |
It open juniors | C32 King's Gambit Declined, Falkbeer Counter Gambit |
| 3. S Ernst vs Barsov |
 | 0-1 | 45 |
1997 |
VAM Hoogeveen op | C07 French, Tarrasch |
| 4. T Hendriks vs S Ernst |
 | 0-1 | 38 |
2000 |
HZ Open | C80 Ruy Lopez, Open |
| 5. V Diepeveen vs S Ernst |
 | 0-1 | 34 |
2000 |
open | C45 Scotch Game |
| 6. S Ernst vs Y H De Rover |
| 0-1 | 31 |
2001 |
10th AKN Weekender | A57 Benko Gambit |
| 7. Y Visser vs S Ernst |
| 0-1 | 37 |
2001 |
ch-NED semi-finals | B18 Caro-Kann, Classical |
| 8. J Heppekausen vs S Ernst |
| 0-1 | 29 |
2001 |
HZ Open | C45 Scotch Game |
| 9. R Michielsen vs S Ernst |
| 0-1 | 50 |
2001 |
10th AKN Weekender | C45 Scotch Game |
| 10. A Caoili vs S Ernst |
| 0-1 | 44 |
2001 |
HZ Open | A34 English, Symmetrical |
| 11. M Boel vs S Ernst |
 | 0-1 | 25 |
2001 |
Dutch Open | C45 Scotch Game |
| 12. F Lucas vs S Ernst |
| 0-1 | 36 |
2001 |
HZ Open | D02 Queen's Pawn Game |
| 13. S Ernst vs K Van der Weide |
| 0-1 | 28 |
2001 |
ch-NED | A57 Benko Gambit |
| 14. Ad Feelders vs S Ernst |
| 0-1 | 32 |
2001 |
10th AKN Weekender | B22 Sicilian, Alapin |
| 15. S Ernst vs Nijboer |
| 0-1 | 32 |
2001 |
ch-NED | E77 King's Indian |
| 16. D Helvensteijn vs S Ernst |
| 0-1 | 31 |
2001 |
Lost Boys Open | C56 Two Knights |
| 17. S Ernst vs G Vescovi |
| 0-1 | 52 |
2002 |
GMA | E00 Queen's Pawn Game |
| 18. L E Johannessen vs S Ernst |
| 0-1 | 35 |
2002 |
GMA | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 19. S Ernst vs J Smeets |
| 0-1 | 32 |
2002 |
Harmonie | D31 Queen's Gambit Declined |
| 20. Jonkman vs S Ernst |
| 0-1 | 40 |
2002 |
Essent ch-NED | C48 Four Knights |
| 21. S Ernst vs I Sokolov |
| 0-1 | 31 |
2002 |
Essent ch-NED | D12 Queen's Gambit Declined Slav |
| 22. S Ernst vs R Janssen |
| 0-1 | 35 |
2003 |
Dutch Championships | E48 Nimzo-Indian, 4.e3 O-O 5.Bd3 d5 |
| 23. S Ernst vs Y Visser |
| 0-1 | 29 |
2004 |
Harmonie | E91 King's Indian |
| 24. S Ernst vs S Kindermann |
| 0-1 | 30 |
2004 |
Bundesliga 0405 | D15 Queen's Gambit Declined Slav |
| 25. S Ernst vs D Brandenburg |
| 0-1 | 51 |
2004 |
Harmonie | E05 Catalan, Open, Classical line |