| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Vakhidov vs S Prior |
| 1-0 | 36 | 2013 | London Chess Classic Open | D15 Queen's Gambit Declined Slav |
| 2. S Prior vs J Chilton |
| 1-0 | 26 | 2013 | London Chess Classic Open | B28 Sicilian, O'Kelly Variation |
| 3. F Semprun Martinez vs S Prior |
| 1-0 | 37 | 2013 | London Chess Classic Open | B06 Robatsch |
| 4. S Prior vs T I Bratteteig |
| 1-0 | 14 | 2013 | London Chess Classic Open | B12 Caro-Kann Defense |
| 5. P Taylor vs S Prior |
| 1-0 | 38 | 2013 | London Chess Classic Open | A20 English |
| 6. S Prior vs T Baterdene |
| 1-0 | 74 | 2013 | London Chess Classic Open | B90 Sicilian, Najdorf |
| 7. F Steil-Antoni vs S Prior |
| ½-½ | 68 | 2013 | London Chess Classic Open | B22 Sicilian, Alapin |
| 8. S Prior vs M Josse |
| 0-1 | 57 | 2013 | London Chess Classic Open | B28 Sicilian, O'Kelly Variation |
| 9. R Kane vs S Prior |
| 0-1 | 41 | 2013 | London Chess Classic Open | D02 Queen's Pawn Game |
| 10. S Prior vs J Vakhidov |
| ½-½ | 79 | 2014 | London Chess Classic Open | B01 Scandinavian |
| 11. J Jackson vs S Prior |
| 1-0 | 68 | 2014 | London Chess Classic Open | B80 Sicilian, Scheveningen |
| 12. S Prior vs K Ettu |
| 1-0 | 58 | 2014 | London Chess Classic Open | C65 Ruy Lopez, Berlin Defense |
| 13. S Sathyanandha vs S Prior |
| 1-0 | 37 | 2014 | London Chess Classic Open | B22 Sicilian, Alapin |
| 14. S Prior vs Aaron Viudes Serra |
 | 1-0 | 48 | 2014 | London Chess Classic Open | B04 Alekhine's Defense, Modern |
| 15. R Willmoth vs S Prior |
| ½-½ | 69 | 2014 | London Chess Classic Open | A04 Reti Opening |
| 16. S Prior vs G Corsino |
| 0-1 | 44 | 2014 | London Chess Classic Open | B76 Sicilian, Dragon, Yugoslav Attack |
| 17. S Prior vs M Fernandez |
| 0-1 | 35 | 2014 | London Chess Classic Open | B12 Caro-Kann Defense |
| 18. D Klingher vs S Prior |
| 0-1 | 61 | 2014 | London Chess Classic Open | B22 Sicilian, Alapin |
| 19. N Theodorou vs S Prior |
| 0-1 | 42 | 2015 | 24th Kavala Open | D45 Queen's Gambit Declined Semi-Slav |
| 20. S Prior vs P Papp |
| ½-½ | 94 | 2015 | London Chess Classic Open | A15 English |
| 21. A Bukojemski vs S Prior |
| 1-0 | 52 | 2015 | London Chess Classic Open | C77 Ruy Lopez |
| 22. S Prior vs A Compton |
| 0-1 | 100 | 2015 | London Chess Classic Open | A13 English |
| 23. D Mohnblatt vs S Prior |
| ½-½ | 39 | 2015 | London Chess Classic Open | D45 Queen's Gambit Declined Semi-Slav |
| 24. S Prior vs Jake Modica |
| 0-1 | 47 | 2015 | London Chess Classic Open | A30 English, Symmetrical |
| 25. L Dror vs S Prior |
| ½-½ | 32 | 2015 | London Chess Classic Open | C77 Ruy Lopez |
Kibitzing
