| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. J Gallagher vs F Braga |
| 0-1 | 43 |
1988 |
10s, Aosta [Hiarcs 7.32 | C18 French, Winawer |
| 2. J Gallagher vs Hertneck |
| ½-½ | 31 |
1990 |
Kecskemet | C18 French, Winawer |
| 3. J Gallagher vs Psakhis |
| ½-½ | 9 |
1991 |
Lenk op | C11 French |
| 4. J Gallagher vs Winfried Hahn |
| 1-0 | 22 |
1993 |
Passau op 1st | C17 French, Winawer, Advance |
| 5. J Gallagher vs J Reust |
| 1-0 | 30 |
1994 |
SUI-chT | C17 French, Winawer, Advance |
| 6. J Gallagher vs M Negele |
| 1-0 | 35 |
1994 |
San Bernardino op | C17 French, Winawer, Advance |
| 7. J Gallagher vs Barsov |
 | 0-1 | 47 |
1994 |
Bern op | C11 French |
| 8. J Gallagher vs E Heyken |
| 1-0 | 23 |
1995 |
Wichern op 3rd | C17 French, Winawer, Advance |
| 9. J Gallagher vs Vincent Deegens |
| 1-0 | 30 |
1996 |
Arosa SKA op | C17 French, Winawer, Advance |
| 10. J Gallagher vs Yusupov |
| ½-½ | 17 |
1996 |
Bundesliga 9697 | C09 French, Tarrasch, Open Variation, Main line |
| 11. J Gallagher vs Hertneck |
 | ½-½ | 70 |
1997 |
Credis | C18 French, Winawer |
| 12. J Gallagher vs R Knaak |
| 0-1 | 48 |
1998 |
Bundesliga -9 | C00 French Defense |
| 13. J Gallagher vs F Scavo |
| 1-0 | 43 |
1999 |
Lugano Open | C00 French Defense |
| 14. J Gallagher vs C Renner |
| 1-0 | 41 |
1999 |
Bundesliga 1998/99, Germany | C00 French Defense |
| 15. J Gallagher vs D Bunzmann |
| 1-0 | 86 |
1999 |
Bundesliga 1998/99, Germany | C00 French Defense |
| 16. J Gallagher vs B Kelly |
| 1-0 | 46 |
2000 |
Aleksandrov-Oral Match | C16 French, Winawer |
| 17. J Gallagher vs Yusupov |
| ½-½ | 37 |
2000 |
SUI-chT | C06 French, Tarrasch |
| 18. J Gallagher vs A Lahiri |
| 1-0 | 20 |
2000 |
Commonwealth-ch | C17 French, Winawer, Advance |
| 19. J Gallagher vs P Deiller |
| 1-0 | 50 |
2001 |
open | C11 French |
| 20. J Gallagher vs Arkell |
| ½-½ | 5 |
2001 |
Smith & Williamson ch-GBR | C03 French, Tarrasch |
| 21. J Gallagher vs S Williams |
| 1-0 | 22 |
2001 |
4NCL | C17 French, Winawer, Advance |
| 22. J Gallagher vs M Waddington |
| 1-0 | 33 |
2001 |
Smith & Williamson ch-GBR | C10 French |
| 23. J Gallagher vs J Markos |
| 1-0 | 29 |
2001 |
EuTCh | C11 French |
| 24. J Gallagher vs O Moor |
| ½-½ | 45 |
2001 |
ch-SUI | C00 French Defense |
| 25. J Gallagher vs J Fargere |
| 1-0 | 33 |
2001 |
open | C11 French |