Game |
| Result | Moves |
Year | Event/Locale | Opening |
1. Wemmers vs C Schwede |
| 1-0 | 41 | 1876 | Cologne | C80 Ruy Lopez, Open |
2. Wemmers vs Zukertort |
| 0-1 | 58 | 1877 | 11th WSB Congress, Cologne | C65 Ruy Lopez, Berlin Defense |
3. Wemmers vs J Metger |
  | 0-1 | 23 | 1877 | 11th WSB Congress, Cologne | C02 French, Advance |
4. Wemmers vs E Schallopp |
 | 1-0 | 40 | 1877 | 11th WSB Congress, Cologne | B46 Sicilian, Taimanov Variation |
5. C Goering vs Wemmers |
| 0-1 | 44 | 1877 | 11th WSB Congress, Cologne | C77 Ruy Lopez |
6. Wemmers vs Paulsen |
 | 0-1 | 23 | 1878 | 12th WDB Congress, Frankfort am Main | B45 Sicilian, Taimanov |
7. A Fritz vs Wemmers |
 | 1-0 | 62 | 1878 | 12th WDB Congress, Frankfort am Main | C80 Ruy Lopez, Open |
8. J Metger vs Wemmers |
 | 1-0 | 19 | 1878 | 12th WDB Congress, Frankfort am Main | C48 Four Knights |
9. Wemmers vs A Stern |
 | 1-0 | 48 | 1878 | 12th WDB Congress, Frankfort am Main | B00 Uncommon King's Pawn Opening |
10. Anderssen vs Wemmers |
 | 1-0 | 51 | 1878 | 12th WDB Congress, Frankfort am Main | C51 Evans Gambit |
11. E Hammacher vs Wemmers |
| 0-1 | 24 | 1878 | 12th WDB Congress, Frankfort am Main | C48 Four Knights |
12. A Schwarz vs Wemmers |
| 1-0 | 56 | 1878 | 12th WDB Congress, Frankfort am Main | C50 Giuoco Piano |
13. Wemmers vs J Minckwitz |
| 0-1 | 65 | 1878 | 12th WDB Congress, Frankfort am Main | C51 Evans Gambit |
14. Wemmers vs W Paulsen |
| 1-0 | 51 | 1878 | 12th WDB Congress, Frankfort am Main | C78 Ruy Lopez |
15. Wemmers vs M Bier |
| 1-0 | 40 | 1879 | 1st DSB Congress, Leipzig | C55 Two Knights Defense |
16. J Minckwitz vs Wemmers |
| 1-0 | 35 | 1879 | 1st DSB Congress, Leipzig | C51 Evans Gambit |
17. E Flechsig vs Wemmers |
| 1-0 | 32 | 1879 | 1st DSB Congress, Leipzig | C77 Ruy Lopez |
18. Wemmers vs Englisch |
 | 0-1 | 23 | 1879 | 1st DSB Congress, Leipzig | C50 Giuoco Piano |
19. A Schwarz vs Wemmers |
 | 1-0 | 31 | 1879 | 1st DSB Congress, Leipzig | C48 Four Knights |
20. Wemmers vs A Schottlaender |
 | 0-1 | 30 | 1879 | 1st DSB Congress, Leipzig | C83 Ruy Lopez, Open |
21. K Pitschel vs Wemmers |
| 0-1 | 45 | 1879 | 1st DSB Congress, Leipzig | A07 King's Indian Attack |
22. W Paulsen vs Wemmers |
 | 0-1 | 27 | 1880 | 13th WSB Congress, Braunschweig | C20 King's Pawn Game |
23. Wemmers vs Bird |
 | 0-1 | 40 | 1880 | Wiesbaden | C45 Scotch Game |
24. Winawer vs Wemmers |
 | 0-1 | 20 | 1880 | Wiesbaden | C49 Four Knights |
25. Paulsen vs Wemmers |
| ½-½ | 39 | 1880 | Wiesbaden | D32 Queen's Gambit Declined, Tarrasch |