| New York 1936 (7) |
U.S. Championship - Preliminary C |
5 | / | 10 |
| | | |
| Poughkeepsie 1936 |
58th New York State Chess Association Tournament |
9 | / | 11 |
| | | |
| Cazenovia 1937 |
New York State Chess Association Championship |
5.5 | / | 9 |
| | | |
| New York 1937 (6) |
Manhattan Club - another club in the Metropolitan League Match |
| | | | | | |
|
Shainswit, G. - Kashdan, I.I. |
0 - 1 |
| | | |
| New York 1938 (3) |
2nd USA Championship - Final |
5.5 | / | 16 |
| | | |
| New York 1938 (7) |
2nd USA Championship - Preliminary Section C |
6.5 | / | 9 |
| | | |
| Boston, Massachusetts 1938 (5) |
39th American Chess Federation Congress - Preliminary Section 5 |
4.5 | / | 6 |
| | | |
| Boston, Massachusetts 1938 (7) |
39th American Chess Federation Congress - Championship Final |
5 | / | 11 |
| | | |
| New York 1939 (1) |
Manhattan Club - Rice Progressive Club Match |
| | | | | | |
|
Shainswit, G. - Treistman, M. |
1 - 0 |
| | | |
| New York 1939 (3) |
Manhattan Club - Marshall Club Match |
| | | | | | |
|
Shainswit, G. - Reinfeld, F. |
0.5 - 0.5 |
| | | |
| Philadelphia 1939 |
Manhattan Club - Philadelphia Match |
| | | | | | |
|
Shainswit, G. - di Camillo, A. |
1 - 0 |
| | | |
| Hamilton, New York 1939 |
61st New York State Chess Association Championship |
4.5 | / | 9 |
| | | |
| New York 1939 (11) |
Manhattan Club - Westside YMCA Club Match |
| | | | | | |
|
Shainswit, G. - Almgren, S.E. |
1 - 0 |
| | | |
| New York 1939 (12) |
Manhattan Club - Westside YMCA Club Match |
| | | | | | |
|
Shainswit, G. - Gustafson, G.A. |
1 - 0 |
| | | |
| New York 1939 (14) |
Manhattan Club - New Jersey League Match |
| | | | | | |
|
Shainswit, G. - Parmalee, H. |
0.5 - 0.5 |
| | | |
| New York 1940 (4) |
Marshall Club - Manhattan Club Match |
| | | | | | |
|
Shainswit, G. - Green, Mat. |
0.5 - 0.5 |
| | | |
| New York 1940 (5) |
3rd U.S.A. Championship - Preliminary Section A |
5 | / | 6 |
| | | |
| New York 1940 (8) |
3rd U.S.A. Championship - Final |
7.5 | / | 16 |
| | | |
| New York 1940 (9) |
Manhattan Club Championship |
10.5 | / | 15 |
| | | |
| New York 1941 (4) |
Marshall Club - Manhattan Club Match |
| | | | | | |
|
Shainswit, G. - Lasker, Ed. |
0.5 - 0.5 |
| | | |
| Hamilton, New York 1941 (1) |
63rd New York State Chess Association Championship - Masters |
3 | / | 10 |
| | | |
| New York 1942 (3) |
Marshall Club - Manhattan Club Match |
| | | | | | |
|
Shainswit, G. - Green, Mat. |
0.5 - 0.5 |
| | | |
| Ventnor City 1942 |
Ventnor City Tournament |
5 | / | 9 |
| | | |
| New York 1942 (5) |
Manhattan Club Championship |
6 | / | 10 |
| | | |
| New York 1944 (1) |
Manhattan Club Championship |
4.5 | / | 9 |
| | | |
| New York 1944 (2) |
U.S.A. Championship - Final |
10.5 | / | 17 |
| | | |
| Ventnor City 1944 |
Ventnor City Tournament |
5.5 | / | 9 |
| | | |
| New York 1946 (2) |
Metropolitan Championship |
4 | / | 9 |
| | | |
