1978 Senior Newcomers MGP
Course name: Mountain (post 1914)
Course length: 113.19 miles (3 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Ashton, Dave | 1:25:35.00 | 81.25 | Suzuki |
| 2 | Davies, John | 1:25:28.00 | 79.46 | Maxton Yamaha |
| 3 | Gordon, Davy | 1:26:56.00 | 78.11 | Sparton |
| 4 | Marsden, Mal | 1:27:11.00 | 77.88 | Honda |
| 5 | Odlin, Phil | 1:27:47.00 | 77.36 | Honda |
| 6 | Harmer, Kenny | 1:29:14.00 | 76.1 | Yamaha |
| 7 | Minchell, John | 1:29:42.00 | 75.7 | Yamaha |
| 8 | Greenwood, David | 1:30:17.00 | 75.22 | Yamaha |
| 9 | Winn, Stephen | 1:32:21.00 | 73.53 | Seeley Matchless |
| 10 | Kneen, Norman | 1:32:22.00 | 73.52 | Yamaha |
| 11 | Corbett, Ray | 1:32:51.00 | 73.13 | Yamaha |
| 12 | Snelling, Bill | 1:33:17.00 | 72.8 | Velocette Metisse |
| 13 | Harris, Chris | 1:34:38.00 | 71.76 | Cowles Matchless |
| 14 | Baxter, Barrie | 1:34:57.00 | 71.52 | Honda |
| 15 | Montgomery, Dave | 1:38:03.00 | 69.25 | Aermacchi |
| 16 | Krueger, Tom | 1:40:16.00 | 67.73 | Yamaha |
| 17 | Potts, Stephen | 1:49:03.00 | 61.8 | Yamaha |
| 18 | Roberts, David | 1:53:07.00 | 59.68 | Honda |
| 19 | O'Brien, Steve | 1:54:54.00 | 59.1 | Cowles Yamaha |
| 20 | Beck, Stan | Bill Head Honda | ||
| R | Hartley, Clive | Suzuki | ||
| R | Hill, Ray | Yamaha | ||
| R | Holmes, Steve | Yamaha | ||
| R | Middleton, Mark | Suzuki | ||
| R | Roebury, Ron | Curry Honda | ||
| R | Cain, Peter | Yamaha |