| Quarterfinals | ||||
| 6/1/47 | 1L | Brooklyn Hispano | 1 : 4 | New York Americans |
| 6/15/47 | 2L | Brooklyn Hispano | 5 : 1 (aet) | New York Americans |
| Brooklyn Hispano advance on 6-5 aggregate | ||||
| 6/15/47 | Ponta Delgada | 5 : 3 (aet) | Philadelphia Americans | |
| 5/4/47 | Sparta (Chi.) | 2 : 1 (aet) | Correnti Cleaners (St. L) | |
| 5/11/47 | Pioneer Kickers (Det.) | 2 : 2 (aet) | Curry SC (W. Pa.) | |
| Pioneer Kickers forfeit replay due to pro league commitments | ||||
| Semifinals | ||||
| 6/22/47 | 1L | Ponta Delgada | 9 : 0 | Brooklyn Hispano |
| 6/29/47 | 2L | Brooklyn Hispano | 1 : 2 | Ponta Delgada |
| Ponta Delgada advance on 11-1 aggregate | ||||
| 6/8/47 | 1L | Curry S.C. | 2 : 4 | Sparta |
| 6/15/47 | 2L | Sparta | 4 : 1 | Curry S.C. |
| Sparta advance on 8-3 aggregate | ||||
| Final | ||||
| First Leg – at Fall River, Massachusetts | ||||
| 8/31/47 | Ponta Delgada | 6 : 1 | Sparta | |
| Second Leg – at Sparta Stadium – Chicago, Illinois | ||||
| 9/7/47 | Sparta | 2 : 3 | Ponta Delgada | |
| Ponta Delgada win National Challenge Cup on 9-3 aggregate | ||||
| KEY – w/o – Walkover, R – Replay, 1L – 1st Leg, 2L – 2nd Leg, 3L – 3rd Leg | ||||
[…] one of the best in the country winning the Amateur Cup six times and the National Challenge Cup in 1947. As part of their run to the 1946 final the first of the two legs reportedly took place at […]