| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Petersen vs S Marder |
| 0-1 | 24 | 2014 | Politiken Cup | A10 English |
| 2. E Jarlnaes vs J Petersen |
| ½-½ | 32 | 2014 | Politiken Cup | B95 Sicilian, Najdorf, 6...e6 |
| 3. J Petersen vs M Rasmussen |
| 1-0 | 36 | 2014 | Politiken Cup | A85 Dutch, with c4 & Nc3 |
| 4. U Karlsson vs J Petersen |
| 1-0 | 32 | 2014 | Politiken Cup | B25 Sicilian, Closed |
| 5. J Petersen vs S Greeuw |
| 0-1 | 51 | 2014 | Politiken Cup | A57 Benko Gambit |
| 6. D Johansson vs J Petersen |
| ½-½ | 32 | 2014 | Politiken Cup | B92 Sicilian, Najdorf, Opocensky Variation |
| 7. J Petersen vs S Dahl |
| ½-½ | 23 | 2014 | Politiken Cup | A45 Queen's Pawn Game |
| 8. T Hansen vs J Petersen |
| 1-0 | 26 | 2014 | Politiken Cup | B98 Sicilian, Najdorf |
| 9. J Petersen vs T Akkanen |
| ½-½ | 39 | 2014 | Politiken Cup | A53 Old Indian |
| 10. E Formanek vs J Petersen |
| 1-0 | 46 | 2015 | Politiken Cup | C02 French, Advance |
| 11. Emmet Smith vs J Petersen |
| 1-0 | 30 | 2015 | Politiken Cup | C01 French, Exchange |
| 12. J Petersen vs Jan Roksvold |
| 0-1 | 36 | 2015 | Politiken Cup | D35 Queen's Gambit Declined |
| 13. J Petersen vs Vidar Gjare |
| 1-0 | 51 | 2015 | Politiken Cup | E30 Nimzo-Indian, Leningrad |
| 14. M Skjoldager vs J Petersen |
| ½-½ | 24 | 2015 | Politiken Cup | C01 French, Exchange |
| 15. J Petersen vs U Norevall |
| 1-0 | 80 | 2015 | Politiken Cup | D10 Queen's Gambit Declined Slav |
| 16. B Undheim vs J Petersen |
| 1-0 | 33 | 2015 | Politiken Cup | C10 French |
| 17. J Petersen vs Mikkel Andreassen |
| 0-1 | 67 | 2015 | Politiken Cup | D44 Queen's Gambit Declined Semi-Slav |
| 18. H K Edwardsson vs J Petersen |
| 0-1 | 29 | 2015 | Politiken Cup | C00 French Defense |
| 19. J Petersen vs K H Lien |
| 0-1 | 47 | 2017 | Xtracon Chess Open | D15 Queen's Gambit Declined Slav |
| 20. M Sandberg vs J Petersen |
| 1-0 | 43 | 2017 | Xtracon Chess Open | A04 Reti Opening |
| 21. J Petersen vs N K Wahlgreen |
| 1-0 | 18 | 2017 | Xtracon Chess Open | A60 Benoni Defense |
| 22. P R Larsen vs J Petersen |
| 1-0 | 34 | 2017 | Xtracon Chess Open | C19 French, Winawer, Advance |
| 23. J Petersen vs H von Knobloch |
| 0-1 | 74 | 2017 | Xtracon Chess Open | D35 Queen's Gambit Declined |
| 24. Alexander Tjora vs J Petersen |
| ½-½ | 57 | 2017 | Xtracon Chess Open | A84 Dutch |
| 25. J Petersen vs J L Jacobsen |
| ½-½ | 24 | 2017 | Xtracon Chess Open | D35 Queen's Gambit Declined |
Kibitzing
