1930-31 United States National Senior Championship

National Amateur Athletic Union Championship
This was the first year that it was held.

All games were played at New York City unless noted.

All series were sudden death.

First Round
Saturday March 21


 * Atlantic City Sea Gulls 4 Boston HC 1 @ Atlantic City

Sunday March 22


 * Philadelphia Penn AC 6 Detroit Hancock Eagles 4
 * Adirondack Olympic HC 9 North Jersey Country Club 2
 * Nashua West Point Club 2 New York St Nicholas 1
 * Syracuse HC 9 Paterson HC 0

Byes - Brooklyn Crescent AC, New York AC.

Quarter Finals
Monday March 23


 * New York AC 4 Adirondack Olympic HC 0
 * Brooklyn Crescent AC 5 Syracuse HC 2
 * Nashua West Point Club 3 Philadelphia Penn AC 0

Bye - Atlantic City Sea Gulls

Semi Finals
Tuesday March 24


 * Brooklyn Crescent AC 4 New York AC 2
 * Atlantic City Sea Gulls 1 Nashua West Point Club 0

Final
Wednesday March 25


 * Brooklyn Crescent AC 4 Atlantic City Sea Gulls 2