| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J Cooper vs Beliavsky |
| 0-1 | 53 |
1973 |
Wch U20 prel-A | E93 King's Indian, Petrosian System |
| 2. Beliavsky vs J Cooper |
 | 1-0 | 39 |
1973 |
Wch U20 fin-A | B44 Sicilian |
| 3. J Cooper vs Petrosian |
 | 0-1 | 49 |
1974 |
Nica | E91 King's Indian |
| 4. Nunn vs J Cooper |
 | 1-0 | 35 |
1976 |
Surrey | C50 Giuoco Piano |
| 5. Nunn vs J Cooper |
| 1-0 | 35 |
1976 |
Surrey Open | C50 Giuoco Piano |
| 6. Speelman vs J Cooper |
| 1-0 | 37 |
1978 |
Ayr British ch | E96 King's Indian, Orthodox, 7...Nbd7, Main line |
| 7. J Cooper vs Plaskett |
 | 0-1 | 39 |
1978 |
Ayr British ch | E30 Nimzo-Indian, Leningrad |
| 8. J Cooper vs Huebner |
| 0-1 | 28 |
1978 |
Buenos Aires ol (Men) | A42 Modern Defense, Averbakh System |
| 9. J Cooper vs Petrosian |
 | 0-1 | 49 |
1978 |
Buenos | E30 Nimzo-Indian, Leningrad |
| 10. J Cooper vs A J Mestel |
 | 0-1 | 57 |
1978 |
Ayr British ch | D31 Queen's Gambit Declined |
| 11. G Botterill vs J Cooper |
| 1-0 | 38 |
1981 |
WLS-ch | E90 King's Indian |
| 12. J Cooper vs K Spraggett |
 | 0-1 | 36 |
1986 |
Olympiades de Dubai | E52 Nimzo-Indian, 4.e3, Main line with ...b6 |
| 13. J Cooper vs Kotronias |
 | 0-1 | 32 |
1988 |
Thessaloniki | A04 Reti Opening |
| 14. Korchnoi vs J Cooper |
| 1-0 | 40 |
1988 |
Thessaloniki olm | E73 King's Indian |
| 15. J Cooper vs Hebden |
| 0-1 | 35 |
1988 |
Ch-ENG | E92 King's Indian |
| 16. E Grivas vs J Cooper |
| 1-0 | 37 |
1990 |
Novi Sad ol (Men) | E97 King's Indian |
| 17. J Cooper vs R Bates |
| 0-1 | 29 |
1994 |
BNCL | E91 King's Indian |
| 18. Jonkman vs J Cooper |
| 1-0 | 32 |
2001 |
Target Recruitment Masters | C25 Vienna |
| 19. J Cooper vs J Shaw |
 | 0-1 | 37 |
2001 |
4NCL | D16 Queen's Gambit Declined Slav |
| 20. A Summerscale vs J Cooper |
| 1-0 | 29 |
2001 |
4NCL | E32 Nimzo-Indian, Classical |
| 21. Speelman vs J Cooper |
| 1-0 | 23 |
2002 |
4NCL | A06 Reti Opening |
| 22. J Cooper vs S Gordon |
| 0-1 | 32 |
2007 |
4NCL 2006-07 | E41 Nimzo-Indian |
| 23. M Turner vs J Cooper |
| 1-0 | 33 |
2008 |
4NCL 2008-2009 | A14 English |
| 24. J Cooper vs C McNab |
| 0-1 | 27 |
2012 |
4NCL 2012/13 | B08 Pirc, Classical |