| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Pinter vs K Allen |
| 1-0 | 37 |
1988 |
Olympiad | D83 Grunfeld, Grunfeld Gambit |
| 2. M Marin vs K Allen |
| 1-0 | 34 |
1989 |
EU-chT (Men) | D87 Grunfeld, Exchange |
| 3. E Brestian vs K Allen |
| 1-0 | 50 |
1989 |
EU-chT (Men) | A22 English |
| 4. K Allen vs M Christodoulou |
| 1-0 | 62 |
1989 |
EU-chT (Men) | D28 Queen's Gambit Accepted, Classical |
| 5. K Allen vs R Almeida |
| ½-½ | 61 |
1989 |
EU-chT (Men) | A10 English |
| 6. M Geenen vs K Allen |
| ½-½ | 21 |
1989 |
Ch Europe (team) | C26 Vienna |
| 7. S Soylu vs K Allen |
| ½-½ | 24 |
1989 |
EU-chT (Men) | D92 Grunfeld, 5.Bf4 |
| 8. K Allen vs A Jones |
| 1-0 | 65 |
1989 |
EU-chT (Men) | D34 Queen's Gambit Declined, Tarrasch |
| 9. F Berend vs K Allen |
| 1-0 | 67 |
1989 |
EU-chT (Men) | A15 English |
| 10. K Allen vs S Volkov |
| 0-1 | 34 |
2000 |
Monarch Assurance | D10 Queen's Gambit Declined Slav |
| 11. K Allen vs Sutovsky |
| 0-1 | 56 |
2000 |
Monarch Assurance 9th | D91 Grunfeld, 5.Bg5 |
| 12. J Lutton vs K Allen |
| ½-½ | 42 |
2001 |
10th Monarch Assurance | B15 Caro-Kann |
| 13. K Allen vs Baburin |
 | 0-1 | 18 |
2001 |
Target Recruitment Masters | D20 Queen's Gambit Accepted |
| 14. T Spanton vs K Allen |
| 0-1 | 35 |
2001 |
10th Monarch Assurance | A10 English |
| 15. K Allen vs A Jackson |
| 0-1 | 22 |
2001 |
10th Monarch Assurance | E34 Nimzo-Indian, Classical, Noa Variation |
| 16. J Bradley vs K Allen |
| 0-1 | 25 |
2001 |
Target Recruitment Masters | B17 Caro-Kann, Steinitz Variation |
| 17. K Allen vs D Spence |
| 0-1 | 60 |
2001 |
10th Monarch Assurance | D15 Queen's Gambit Declined Slav |
| 18. P Benson vs K Allen |
 | 0-1 | 18 |
2001 |
10th Monarch Assurance | A80 Dutch |
| 19. K Allen vs Desmond Forson |
| 1-0 | 29 |
2001 |
Target Recruitment Masters | A10 English |
| 20. R Coathup vs K Allen |
| 1-0 | 20 |
2001 |
10th Monarch Assurance | A82 Dutch, Staunton Gambit |
| 21. K Allen vs S Bousbouras |
| 0-1 | 37 |
2001 |
10th Monarch Assurance | D02 Queen's Pawn Game |
| 22. G Heathwood vs K Allen |
| 0-1 | 44 |
2001 |
Target Recruitment Masters | A85 Dutch, with c4 & Nc3 |
| 23. K Allen vs E L Stuart |
| 1-0 | 37 |
2001 |
10th Monarch Assurance | A40 Queen's Pawn Game |
| 24. P Gillen vs K Allen |
| 0-1 | 47 |
2001 |
Target Recruitment Masters | A87 Dutch, Leningrad, Main Variation |
| 25. Flear vs K Allen |
| 1-0 | 47 |
2001 |
10th Monarch Assurance | D82 Grunfeld, 4.Bf4 |