September 1923 (Mountain Course).
| Rank | Rider | Team | Speed | Time |
|---|
| 1 | {{flagicon|England}} Les Randles | Sunbeam | 52.77 mph | 3:34.32.0 |
| 2 | {{flagicon|England}} Kenneth Twemlow | New Imperial | 52.46 mph | 3:35.49.0 |
| 3 | {{flagicon|Isle of Man}} Arthur J.Marsden | Douglas | 51.74 mph | 3:38.18.0 |
| 4 | {{flagicon|England}} W.H.Houghton | Sunbeam | 51.01 mph | 3:42.03.0 |
| 5 | {{flagicon|England}} C.Waterhouse | Sunbeam | 50.69 mph | 3:43.19.0 |
| 6 | {{flagicon|England}} J.W.Bezzant | Norton | 47.67 mph | 3:57.09.0 |
| 7 | {{flagicon|England}} Edwin Twemlow | 350cc Sunbeam | | |
| 8 | {{flagicon|England}} H.V.Prescott | Scott | | |
| 9 | {{flagicon|England}} N.Owen | Norton | | |
| 10 | {{flagicon|England}} V.F.Crosthwaite | Beadmore Precision | | |