| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. R Rey Ardid vs Alekhine |
 | 0-1 | 17 | 1922 | Exhibition game | D93 Grunfeld, with Bf4 & e3 |
| 2. O C Mueller vs A Muffang |
 | 0-1 | 20 | 1923 | Margate | D85 Grunfeld |
| 3. W Winter vs H E Atkins |
| 0-1 | 17 | 1925 | British Championship | D95 Grunfeld |
| 4. M Dietze vs W Einer |
| 0-1 | 17 | 1926 | Corresp. /27 | D80 Grunfeld |
| 5. G A Thomas vs Euwe |
| 0-1 | 20 | 1926 | Weston-super-Mare | D75 Neo-Grunfeld, 6.cd Nxd5, 7.O-O c5, 8.dxc5 |
| 6. W Berryman vs S Landau |
| 0-1 | 12 | 1930 | Hastings | D70 Neo-Grunfeld Defense |
| 7. W Winter vs Menchik |
| 0-1 | 16 | 1930 | Kent County Premier | D70 Neo-Grunfeld Defense |
| 8. B Moritz vs K Helling |
| 0-1 | 13 | 1931 | 27th German Chess Federation Congress | D94 Grunfeld |
| 9. Andres vs F M Wren |
| 0-1 | 17 | 1933 | Buffalo | D76 Neo-Grunfeld, 6.cd Nxd5, 7.O-O Nb6 |
| 10. F Collins vs E Cordingley |
| 0-1 | 19 | 1935 | Ludlow Congress | D70 Neo-Grunfeld Defense |
| 11. O Kavlie-Jorgensen vs L Engels |
| 0-1 | 20 | 1936 | non-FIDE Munich Olympiad | D95 Grunfeld |
| 12. Sokov vs Volk |
| 0-1 | 16 | 1937 | 12th Ch Leningrad sf group 8 | D81 Grunfeld, Russian Variation |
| 13. A Arutiunov vs Gazarov |
| 0-1 | 14 | 1938 | Ch Azerbaijan | D70 Neo-Grunfeld Defense |
| 14. Alatortsev vs Flohr |
| 0-1 | 18 | 1939 | Leningrad / Moscow training | D80 Grunfeld |
| 15. H Aleksanyan vs A Kalantar |
| 0-1 | 19 | 1944 | 5th Ch Armenia | D83 Grunfeld, Grunfeld Gambit |
| 16. Carlos Hieber vs Abel Perez |
| 0-1 | 17 | 1945 | Mexico-ch | D94 Grunfeld |
| 17. H Yanofsky vs R Byrne |
| 0-1 | 19 | 1945 | Ventnor City | D85 Grunfeld |
| 18. V Tomovic vs V Popovic |
| 0-1 | 19 | 1945 | Yugoslav Championship | D96 Grunfeld, Russian Variation |
| 19. K Plater vs A Pytlakowski |
| 0-1 | 20 | 1946 | Polish Championship | D80 Grunfeld |
| 20. P Tautvaisas vs R Arlauskas |
| 0-1 | 17 | 1946 | Augsburg | D97 Grunfeld, Russian |
| 21. NN vs H Betker |
| 0-1 | 20 | 1947 | Match | D83 Grunfeld, Grunfeld Gambit |
| 22. R C Simpson vs Santasiere |
| 0-1 | 20 | 1948 | 49th US Open | D96 Grunfeld, Russian Variation |
| 23. J Platt vs Szabo |
| 0-1 | 20 | 1949 | Reti Memorial | D97 Grunfeld, Russian |
| 24. S Tordion vs Unzicker |
| 0-1 | 19 | 1949 | Lucerne | D87 Grunfeld, Exchange |
| 25. Tom Swihart vs Hall |
| 0-1 | 16 | 1950 | corr | D84 Grunfeld, Grunfeld Gambit Accepted |
Kibitzing
