| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. W Adams vs Shainswit |
| 0-1 | 30 |
1941 |
New York | B15 Caro-Kann |
| 27. Santasiere vs Shainswit |
| 1-0 | 72 |
1941 |
Hamilton | D04 Queen's Pawn Game |
| 28. Shainswit vs S Bernstein |
| ½-½ | 17 |
1942 |
Ventnor City | A47 Queen's Indian |
| 29. Shainswit vs W Suesman |
| ½-½ | 43 |
1942 |
Ventnor City | D62 Queen's Gambit Declined, Orthodox, Rubinstein Attack |
| 30. Fine vs Shainswit |
| 1-0 | 41 |
1942 |
New York USA speed ch (10-sec/move), USA | D37 Queen's Gambit Declined |
| 31. Shainswit vs J Levin |
| 1-0 | 50 |
1943 |
Ventnor City | E05 Catalan, Open, Classical line |
| 32. W Suesman vs Shainswit |
| ½-½ | 42 |
1943 |
Ventnor City | B02 Alekhine's Defense |
| 33. Shainswit vs W Adams |
| ½-½ | 20 |
1943 |
Ventnor City | D06 Queen's Gambit Declined |
| 34. Shainswit vs Chernev |
 | ½-½ | 32 |
1944 |
New York ch-USA | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 35. Fine vs Shainswit |
 | 1-0 | 42 |
1944 |
US Champ | D17 Queen's Gambit Declined Slav |
| 36. Shainswit vs I A Horowitz |
| 0-1 | 39 |
1944 |
USA ch | D49 Queen's Gambit Declined Semi-Slav, Meran |
| 37. A Di Camillo vs Shainswit |
| 0-1 | 47 |
1944 |
USA ch | D29 Queen's Gambit Accepted, Classical |
| 38. W Suesman vs Shainswit |
| 0-1 | 41 |
1944 |
Ventnor City | D45 Queen's Gambit Declined Semi-Slav |
| 39. Shainswit vs L Garcia Balado |
| ½-½ | 25 |
1947 |
La Plata-New York radio m | E09 Catalan, Closed |
| 40. F Howard vs Shainswit |
| 0-1 | 30 |
1948 |
USA-ch | C11 French |
| 41. W Shipman vs Shainswit |
| ½-½ | 21 |
1948 |
USA-ch | B17 Caro-Kann, Steinitz Variation |
| 42. Shainswit vs O Ulvestad |
| ½-½ | 52 |
1948 |
USA-ch | E00 Queen's Pawn Game |
| 43. G Kramer vs Shainswit |
| ½-½ | 18 |
1948 |
USA-ch | D29 Queen's Gambit Accepted, Classical |
| 44. Shainswit vs S E Almgren |
| 1-0 | 47 |
1948 |
USA-ch | A46 Queen's Pawn Game |
| 45. Shainswit vs I Heitner |
| ½-½ | 27 |
1948 |
USA-ch | A47 Queen's Indian |
| 46. Shainswit vs P Poschel |
 | ½-½ | 17 |
1948 |
USA-ch | E11 Bogo-Indian Defense |
| 47. Shainswit vs W Janes |
| 1-0 | 32 |
1948 |
USA-ch | D12 Queen's Gambit Declined Slav |
| 48. H Steiner vs Shainswit |
| ½-½ | 46 |
1948 |
USA-ch | A13 English |
| 49. Santasiere vs Shainswit |
| ½-½ | 32 |
1948 |
USA Championship | C10 French |
| 50. W Adams vs Shainswit |
| 0-1 | 19 |
1948 |
USA-ch | B12 Caro-Kann Defense |