1958 Senior Snaefell MGP
Course name: Mountain (post 1914)
Course length: 150.92 miles (4 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Richardson, Philip | 1:46:28.00 | 85.06 | Norton |
| 2 | Williams, David | 1:46:36.00 | 84.95 | Norton |
| 3 | Griffiths, J.F. | 1:47:37.00 | 84.21 | Norton |
| 4 | Overton, P. | 1:48:20.00 | 83.65 | BSA |
| 5 | Betts, Brian | 1:51:04.00 | 81.52 | Norton |
| 6 | Young, G.C. | 1:51:15.00 | 81.4 | Norton |
| 7 | Broome, Victor F. | 1:52:00.00 | 80.86 | BSA |
| 8 | Hobson, Mac | 1:57:13.00 | 77.3 | BSA |
| 9 | Boarer, E.T. | 1:57:41.00 | 76.97 | Norton |
| 10 | Ward, M.E. | 1:58:10.00 | 76.64 | Norton |
| 11 | Easton, D.W. | 1:59:48.00 | 75.59 | BSA |
| 12 | Copland, Alistair | 2:00:53.00 | 74.91 | BSA |
| 13 | Jenkins, Griff | 2:01:24.00 | 74.6 | Norton |
| 14 | Dunne, John | 2:05:03.00 | 72.42 | Norton |
| 15 | Stride, A.A. | 2:07:34.00 | 70.99 | Norton |
| 16 | Holman, R.P. | 2:17:50.00 | 65.7 | BSA |
| 17 | Croucher, V.F.G. | 2:24:33.00 | 62.65 | BSA |
| 18 | Smith, G.W. | 2:38:21.00 | 57.19 | BSA |
| 19 | Friend, W. | 2:45:38.00 | 54.68 | DW Special |
| R | Elliott, R.C. | 0 | Triumph | |
| R | Holder, John | 0 | Norton | |
| R | Irlam, Harry | 0 | Norton | |
| R | Lindley, Barry | 0 | BSA | |
| R | Stracey, J.F. | 0 | Norton | |
| R | Tomlinson, Peter | 0 | Triumph |