Morecambe| 8 | | Cavendish Park | | > | | Sat | 18 Feb 1905 | Barrow | 11 | Millom | 0 | | Cavendish Park | | > |
| Sat | 18 Feb 1905 | Beverley | 2 | York | 9 | | Boulevard | | > |
| Sat | 18 Feb 1905 | Bramley | 0 | Keighley | 3 | | Barley Mow | | > |
| Sat | 18 Feb 1905 | Brighouse Rangers | 6 | Normanton | 8 | | Lane Head | | > |
| Sat | 18 Feb 1905 | Brookland | 5 | Maryport | 10 | | [unknown] | | > |
| Sat | 18 Feb 1905 | Castleford | 24 | Lancaster | 7 | | Hunt's Field | | > |
| Sat | 18 Feb 1905 | Huddersfield | 20 | Vic Rangers | 3 | | Fartown | | > |
| Sat | 18 Feb 1905 | Ossett | 5 | Sharlston Rovers | 0 | | [unknown] | | > |
| Sat | 18 Feb 1905 | Pontefract | 2 | Dewsbury | 22 | | Park Avenue | | > |
| Sat | 18 Feb 1905 | Rochdale H. | 2 | Chadderton | 0 | | Athletic Ground | | > |
| Sat | 18 Feb 1905 | Rochdale Rangers | 10 | Egerton | 9 | | [unknown] | | > |
| Sat | 18 Feb 1905 | Seaton Rangers | 3 | Parton | 5 | | [unknown] | | > |
| Sat | 25 Feb 1905 | Brookland | 2 | Maryport | 0 | | [unknown] | | > |
| Challenge Cup - Round 1
|
|---|
| Sat | 04 Mar 1905 | Batley | 13 | Barrow | 5 | | Mount Pleasant | | > |
| Sat | 04 Mar 1905 | Bradford | 42 | Castleford | 5 | | Park Avenue | | > |
| Sat | 04 Mar 1905 | Brookland | 5 | Hull KR | 73 | | Craven Street | | > |
| Sat | 04 Mar 1905 | Broughton R. | 8 | Runcorn | 0 | | Wheater's | | > |
| Sat | 04 Mar 1905 | Halifax | 2 | Dewsbury | 0 | | Thrum | | > |
| Sat | 04 Mar 1905 | Huddersfield | 5 | York | 0 | | Fartown | | > |
| Sat | 04 Mar 1905 | Hull | 52 | Leigh Shamrocks | 0 | | Boulevard | | > |
| Sat | 04 Mar 1905 | Hunslet | 22 | Parton | 3 | | Parkside | | > |
| Sat | 04 Mar 1905 | Keighley | 8 | Salford | 0 | | Lawkholme Lane | | > |
| Sat | 04 Mar 1905 | Leeds | 20 | Ossett | 0 | | Headingley | | > |
| Sat | 04 Mar 1905 | Leigh | 3 | Wigan | 0 | | Mather Lane | | > |
| Sat | 04 Mar 1905 | Oldham | 16 | Normanton | 3 | | Watersheddings | | > |
| Sat | 04 Mar 1905 | St Helens | 9 | Rochdale Rangers | 2 | | Knowsley | | > |
| Sat | 04 Mar 1905 | Swinton | 8 | Rochdale H. | 3 | | Chorley Road | | > |
| Sat | 04 Mar 1905 | Warrington | 30 | Morecambe | 0 | | Wilderspool | | > |
| Sat | 04 Mar 1905 | Widnes | 3 | Wakefield T. | 5 | | Belle Vue | | > |
| Challenge Cup - Round 2
|
|---|
| Sat | 18 Mar 1905 | Batley | 10 | Oldham | 14 | | Mount Pleasant | | > |
| Sat | 18 Mar 1905 | Broughton R. | 18 | St Helens | 0 | | Wheater's | | > |
| Sat | 18 Mar 1905 | Huddersfield | 3 | Wakefield T. | 3 | | Fartown | | > |
| Sat | 18 Mar 1905 | Hull KR | 3 | Leeds | 0 | | Craven Street | | > |
| Sat | 18 Mar 1905 | Hull | 5 | Hunslet | 7 | | Boulevard | | > |
| Sat | 18 Mar 1905 | Swinton | 0 | Bradford | 6 | | Chorley Road | | > |
| Sat | 18 Mar 1905 | Warrington | 3 | Keighley | 3 | | Wilderspool | | > |
| Tue | 21 Mar 1905 | Keighley | 0 | Warrington | 7 | | Lawkholme Lane | | > |
| Wed | 22 Mar 1905 | Wakefield T. | 7 | Huddersfield | 0 | | Belle Vue | | > |
| Challenge Cup - Round 1
|
|---|
| Wed | 22 Mar 1905 | Wigan | 5 | Leigh | 0 | | Central Park | | > |
| Challenge Cup - Round 2
|
|---|
| Sat | 25 Mar 1905 | Wigan | 5 | Halifax | 2 | | Central Park | | > |
| Challenge Cup - Round 3
|
|---|
| Sat | 01 Apr 1905 | Broughton R. | 16 | Wakefield T. | 10 | | Wheater's | | > |
| Sat | 01 Apr 1905 | Hull KR | 8 | Hunslet | 2 | | Craven Street | | > |
| Sat | 01 Apr 1905 | Oldham | 0 | Bradford | 0 | | Watersheddings | | > |
| Sat | 01 Apr 1905 | Warrington | 13 | Wigan | 0 | | Wilderspool | | > |
| Wed | 05 Apr 1905 | Bradford | 8 | Oldham | 5 | | Park Avenue | | > |
| Challenge Cup - Semi Final
|
|---|
| Sat | 15 Apr 1905 | Hull KR | 10 | Broughton R. | 6 | | Belle Vue | 12,659 | > |
| Sat | 15 Apr 1905 | Warrington | 7 | Bradford | 2 | | Athletic Ground | 15,000 | > |
| Challenge Cup - Final
|
|---|
| Sat | 29 Apr 1905 | Warrington | 6 | Hull KR | 0 | | Headingley | 19,638 | > |