Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. E Gruer vs W M Davidson |
| ½-½ | 41 | 1910 | Cal Berkley-Stanford Match | C17 French, Winawer, Advance |
2. C Phillips vs E Gruer |
 | 1-0 | 70 | 1913 | Chicago CC Championship | D05 Queen's Pawn Game |
3. E Gruer vs Kostic |
 | 0-1 | 36 | 1915 | Match | E38 Nimzo-Indian, Classical, 4...c5 |
4. E Gruer vs S Mlotkowski |
 | ½-½ | 32 | 1915 | Los Angeles-San Francisco | D37 Queen's Gambit Declined |
5. S Mlotkowski vs E Gruer |
 | ½-½ | 36 | 1916 | San Fran-Southern Cal telegraph match | C51 Evans Gambit |
6. W Pratt vs E Gruer |
 | 0-1 | 27 | 1917 | corr | C53 Giuoco Piano |
7. E Gruer vs S Mlotkowski |
| ½-½ | 27 | 1917 | Off-hand Game | D32 Queen's Gambit Declined, Tarrasch |
8. E Gruer vs S Mlotkowski |
| 1-0 | 38 | 1917 | Off-hand Game | A70 Benoni, Classical with 7.Nf3 |
9. S Mlotkowski vs E Gruer |
| 1-0 | 58 | 1917 | Off-hand Game | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
10. E Gruer vs R C Stephenson |
  | 1-0 | 50 | 1917 | Blindfold Match | D30 Queen's Gambit Declined |
11. S Mlotkowski vs E Gruer |
 | 1-0 | 63 | 1918 | Casual game | C51 Evans Gambit |
12. S Mlotkowski vs E Gruer |
| ½-½ | 37 | 1918 | Off-hand Game | B32 Sicilian |
13. S Mlotkowski vs E Gruer |
 | ½-½ | 37 | 1918 | Off-hand Game | B74 Sicilian, Dragon, Classical |
14. E Gruer vs S Mlotkowski |
| ½-½ | 17 | 1918 | Off-hand Game | A47 Queen's Indian |
15. E Gruer vs W Lovegrove |
 | 1-0 | 45 | 1921 | California State Championship | D00 Queen's Pawn Game |
16. H Borochow vs E Gruer |
| 0-1 | 21 | 1922 | California State Championship | C25 Vienna |
17. E Gruer vs A W Ryder |
| 0-1 | 50 | 1922 | Gruer-Ryder Match | A80 Dutch |
18. E Gruer vs A W Ryder |
| 1-0 | 25 | 1922 | Gruer-Ryder Match | C65 Ruy Lopez, Berlin Defense |
19. E Gruer vs S Factor |
| 0-1 | 71 | 1922 | 23rd Western Championship | C80 Ruy Lopez, Open |
20. E Gruer vs S Swanson |
| 1-0 | 31 | 1922 | California State Championship | D11 Queen's Gambit Declined Slav |
21. E Gruer vs M Ward |
 | 0-1 | 27 | 1922 | Gruer Simul 13b | E00 Queen's Pawn Game |
22. E Gruer vs A W Ryder |
| ½-½ | 42 | 1922 | Gruer-Ryder Match | C33 King's Gambit Accepted |
23. N Whitaker vs E Gruer |
| 1-0 | 52 | 1922 | 23rd Western Championship | D45 Queen's Gambit Declined Semi-Slav |
24. G Branch vs E Gruer |
 | 1-0 | 12 | 1923 | 24th Western Championship | C30 King's Gambit Declined |
25. E Gruer vs S Mlotkowski |
 | 0-1 | 45 | 1925 | California State Championship | A40 Queen's Pawn Game |