Maryport| 3 | | Craven Park | | > | | Sat | 19 Feb 1938 | Bradford N. | 7 | Featherstone R. | 2 | | Odsal | | > |
| Sat | 19 Feb 1938 | Bramley | 23 | Leigh | 5 | | Barley Mow | | > |
| Sat | 19 Feb 1938 | Castleford | 18 | Newcastle | 9 | | Wheldon Road | | > |
| Sat | 19 Feb 1938 | Glass Houghton | 2 | Rochdale H. | 50 | | Athletic Ground | | > |
| Sat | 19 Feb 1938 | Halifax | 4 | Warrington | 4 | | Thrum | | > |
| Sat | 19 Feb 1938 | Huddersfield | 2 | Broughton R. | 0 | | Fartown | | > |
| Sat | 19 Feb 1938 | Hull KR | 0 | Keighley | 2 | | Craven Park | | > |
| Sat | 19 Feb 1938 | Leeds | 27 | Wigan | 4 | | Headingley | | > |
| Sat | 19 Feb 1938 | Liverpool S. | 6 | Hunslet | 5 | | Stanley | | > |
| Sat | 19 Feb 1938 | Oldham | 7 | Batley | 8 | | Watersheddings | | > |
| Sat | 19 Feb 1938 | St Helens Recs | 11 | Dewsbury | 10 | | City Road | | > |
| Sat | 19 Feb 1938 | St Helens | 39 | Pendlebury Jnrs | 0 | | Knowsley | | > |
| Sat | 19 Feb 1938 | Salford | 38 | Hull | 2 | | The Willows | | > |
| Sat | 19 Feb 1938 | Wakefield T. | 7 | Widnes | 3 | | Belle Vue | | > |
| Sat | 19 Feb 1938 | York | 2 | Swinton | 12 | | Wigginton Rd | | > |
| Wed | 23 Feb 1938 | Warrington | 9 | Halifax | 16 | | Wilderspool | | > |
| Challenge Cup - Round 2
|
|---|
| Sat | 12 Mar 1938 | Barrow | 26 | Bramley | 4 | | Craven Park | | > |
| Sat | 12 Mar 1938 | Batley | 8 | Keighley | 6 | | Mount Pleasant | | > |
| Sat | 12 Mar 1938 | Castleford | 18 | St Helens | 2 | | Wheldon Road | | > |
| Sat | 12 Mar 1938 | Halifax | 5 | Bradford N. | 5 | | Thrum | | > |
| Sat | 12 Mar 1938 | Leeds | 11 | Huddersfield | 7 | | Headingley | | > |
| Sat | 12 Mar 1938 | Liverpool S. | 3 | Salford | 11 | | Stanley | | > |
| Sat | 12 Mar 1938 | St Helens Recs | 18 | Rochdale H. | 10 | | City Road | | > |
| Sat | 12 Mar 1938 | Swinton | 10 | Wakefield T. | 5 | | Station Road | | > |
| Wed | 16 Mar 1938 | Bradford N. | 2 | Halifax | 10 | | Odsal | | > |
| Challenge Cup - Round 3
|
|---|
| Sat | 26 Mar 1938 | Barrow | 7 | Leeds | 5 | | Craven Park | | > |
| Sat | 26 Mar 1938 | Batley | 3 | Swinton | 9 | | Mount Pleasant | | > |
| Sat | 26 Mar 1938 | Castleford | 7 | Halifax | 7 | | Wheldon Road | | > |
| Sat | 26 Mar 1938 | Salford | 19 | St Helens Recs | 0 | | The Willows | | > |
| Wed | 30 Mar 1938 | Halifax | 11 | Castleford | 7 | | Thrum | | > |
| Challenge Cup - Semi Final
|
|---|
| Sat | 09 Apr 1938 | Halifax | 2 | Barrow | 4 | | Fartown | 31,384 | > |
| Sat | 09 Apr 1938 | Salford | 6 | Swinton | 0 | | Belle Vue | 31,664 | > |
| Challenge Cup - Final
|
|---|
| Sat | 07 May 1938 | Salford | 7 | Barrow | 4 | | Wembley | 51,243 | > |