| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. S Bernstein vs E McCormick |
| 1-0 | 40 |
1938 |
USA-ch prel B | D02 Queen's Pawn Game |
| 2. Marshall vs E McCormick |
 | 1-0 | 14 |
1938 |
free | A21 English |
| 3. E McCormick vs M Bain |
| 1-0 | 39 |
1939 |
Ventnor City | B02 Alekhine's Defense |
| 4. Koltanowski vs E McCormick |
| 1-0 | 58 |
1940 |
simul blind 1/8 | C50 Giuoco Piano |
| 5. S Bernstein vs E McCormick |
| 1-0 | 37 |
1940 |
Ventnor City | D49 Queen's Gambit Declined Semi-Slav, Meran |
| 6. E McCormick vs Bisguier |
| 1-0 | 25 |
1946 |
47th US Open | C07 French, Tarrasch |
| 7. Larry Evans vs E McCormick |
| 1-0 | 44 |
1946 |
47th US Open | C83 Ruy Lopez, Open |
| 8. W Adams vs E McCormick |
| 1-0 | 19 |
1947 |
Ventnor City | C26 Vienna |
| 9. Kashdan vs E McCormick |
| 1-0 | 60 |
1948 |
49th US Open | C82 Ruy Lopez, Open |
| 10. E McCormick vs R C Simpson |
| 1-0 | 26 |
1948 |
49th US Open | C05 French, Tarrasch |
| 11. E McCormick vs A H Hobson |
| 1-0 | 27 |
1948 |
49th US Open | C41 Philidor Defense |
| 12. R Durkin vs E McCormick |
| 1-0 | 35 |
1948 |
New Jersey Open | A00 Uncommon Opening |
| 13. N Whitaker vs E McCormick |
| 1-0 | 36 |
1948 |
49th US Open | B18 Caro-Kann, Classical |
| 14. G Hartleb vs E McCormick |
| 1-0 | 42 |
1949 |
50th US Open | D19 Queen's Gambit Declined Slav, Dutch |
| 15. E McCormick vs L Magee |
| 1-0 | 25 |
1949 |
50th US Open | B45 Sicilian, Taimanov |
| 16. A Sandrin vs E McCormick |
| 1-0 | 32 |
1951 |
52nd US Open | D17 Queen's Gambit Declined Slav |
| 17. E McCormick vs E Hearst |
| 1-0 | 31 |
1951 |
52nd US Open | B13 Caro-Kann, Exchange |
| 18. E McCormick vs R Martin |
| 1-0 | 55 |
1951 |
52nd US Open | B28 Sicilian, O'Kelly Variation |
| 19. E McCormick vs N Whitaker |
| 1-0 | 40 |
1951 |
52nd US Open | C27 Vienna Game |
| 20. J Sherwin vs E McCormick |
| 1-0 | 19 |
1951 |
52nd US Open | D19 Queen's Gambit Declined Slav, Dutch |
| 21. Larry Evans vs E McCormick |
| 1-0 | 45 |
1951 |
52nd US Open | D19 Queen's Gambit Declined Slav, Dutch |
| 22. E Zemgalis vs E McCormick |
| 1-0 | 23 |
1953 |
US Open | D28 Queen's Gambit Accepted, Classical |
| 23. E McCormick vs R Potter |
| 1-0 | 27 |
1954 |
55th US Open | C26 Vienna |
| 24. Santasiere vs E McCormick |
| 1-0 | 19 |
1954 |
55th US Open | C35 King's Gambit Accepted, Cunningham |
| 25. A Turner vs E McCormick |
| 1-0 | 25 |
1954 |
55th US Open | A29 English, Four Knights, Kingside Fianchetto |
