| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. S Gillen vs M Armstrong |
| ½-½ | 22 |
1991 |
It (open) | C55 Two Knights Defense |
| 2. B Bajrami vs M Armstrong |
| ½-½ | 27 |
2006 |
European Club Cup | B18 Caro-Kann, Classical |
| 3. M Armstrong vs F Graf |
| ½-½ | 44 |
2006 |
Hastings Chess Congress | A46 Queen's Pawn Game |
| 4. D Mallaghan vs M Armstrong |
| ½-½ | 52 |
2006 |
European Club Cup | C01 French, Exchange |
| 5. M Armstrong vs I Snape |
| ½-½ | 67 |
2006 |
Hastings Chess Congress | A43 Old Benoni |
| 6. A Legge vs M Armstrong |
| ½-½ | 61 |
2006 |
European Union Individual Championships | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 7. O Jackson vs M Armstrong |
| ½-½ | 34 |
2006 |
Hastings Chess Congress | C11 French |
| 8. M Armstrong vs J Shaw |
| ½-½ | 51 |
2006 |
European Union Individual Championships | D12 Queen's Gambit Declined Slav |
| 9. P Goldsworthy vs M Armstrong |
| ½-½ | 30 |
2006 |
Hastings Chess Congress | B13 Caro-Kann, Exchange |
| 10. K McEwan vs M Armstrong |
| ½-½ | 22 |
2007 |
British Championship | C06 French, Tarrasch |
| 11. M Armstrong vs R A James |
| ½-½ | 21 |
2007 |
British Championship | D33 Queen's Gambit Declined, Tarrasch |
| 12. P Talsma vs M Armstrong |
| ½-½ | 65 |
2007 |
British Championship | D63 Queen's Gambit Declined, Orthodox Defense |
| 13. D Eggleston vs M Armstrong |
| ½-½ | 23 |
2007 |
Hastings Chess Congress | B18 Caro-Kann, Classical |
| 14. F Rayner vs M Armstrong |
| ½-½ | 88 |
2007 |
Hastings Chess Congress | C11 French |
| 15. T Olsarova vs M Armstrong |
| ½-½ | 98 |
2011 |
Hastings Congress 2011-2012 | B12 Caro-Kann Defense |
| 16. M Armstrong vs J Higgs |
| ½-½ | 49 |
2012 |
Hastings Chess Congress | E06 Catalan, Closed, 5.Nf3 |
| 17. M Armstrong vs J N Sugden |
| ½-½ | 20 |
2012 |
Hastings Congress 2011-2012 | A43 Old Benoni |
| 18. C Sreeves vs M Armstrong |
| ½-½ | 35 |
2012 |
Hastings Congress 2011-2012 | A12 English with b3 |
| 19. M Armstrong vs O Willson |
| ½-½ | 50 |
2013 |
Hastings Chess Congress | D77 Neo-Grunfeld, 6.O-O |
| 20. M Armstrong vs C Atako |
| ½-½ | 39 |
2013 |
Hastings Chess Congress | A89 Dutch, Leningrad, Main Variation with Nc6 |