1980 Lightweight MGP
Course name: Mountain (post 1914)
Course length: 150.92 miles (4 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Williams, Steve | 1:31:10.00 | 99.31 | Fowler Yamaha |
| 2 | Jackson, Bob | 1:31:13.00 | 99.26 | Greg Yamaha |
| 3 | Boyes, Steve | 1:33:55.00 | 96.41 | Maxton Yamaha |
| 4 | Atkins, Alan | 1:34:35.00 | 95.72 | Yamaha |
| 5 | Faulkner, Chris | 1:35:22.00 | 94.94 | Maxton Yamaha |
| 6 | Campbell, Raymond | 1:35:43.00 | 94.59 | Yamaha |
| 7 | Grose, Chris | 1:36:57.00 | 93.39 | Yamaha |
| 8 | Gobell, Clifford | 1:36:58.00 | 93.37 | Nice Yamaha |
| 9 | Sunderland, Eric | 1:37:07.00 | 93.23 | Earnshaw Yamaha |
| 10 | Dunlop, Jim | 1:37:11.00 | 93.16 | Yamaha |
| 11 | Thomson, Chas | 1:37:25.00 | 92.94 | Yamaha |
| 12 | Turner, Glyn | 1:38:10.00 | 92.24 | Yamaha |
| 13 | Allan, Derek | 1:38:15.00 | 92.15 | Yamaha |
| 14 | Hodgson, Steve | 1:38:25.00 | 92 | Maxton Yamaha |
| 15 | Fargher, Chris | 1:38:48.00 | 91.64 | Harris Yamaha |
| 16 | Brown, Gordon | 1:38:48.00 | 91.64 | Suzuki |
| 17 | Cannon, Rick | 1:38:53.00 | 91.57 | Yamaha |
| 18 | Tunstall, Geoff | 1:39:09.00 | 91.32 | Denby Dale Maxton |
| 19 | Padgett, Gary | 1:39:27.00 | 91.04 | Padgett Yamaha |
| 20 | Todd, Paul | 1:39:30.00 | 90.99 | RDZ Manxman |
| 21 | Russell, Tony | 1:39:36.00 | 90.91 | Yamaha |
| 22 | Parry, Dave | 1:40:23.00 | 90.19 | Yamaha |
| 23 | Brooks, Richard | 1:40:36.00 | 90 | Yamaha |
| 24 | Jackson, Alan Bud | 1:40:43.00 | 89.89 | Jackson Yamaha |
| 25 | Riches, James | 1:40:56.00 | 89.7 | Yamaha |
| 26 | Edge, Dave | 1:42:01.00 | 88.75 | Yamaha |
| 27 | Herley, Tom | 1:42:17.00 | 88.52 | Yamaha |
| 28 | Butler, Bill | 1:43:22.00 | 87.59 | Yamaha |
| 29 | Jones, Tony | 1:43:22.00 | 87.32 | Yamaha |
| 30 | Binnie, Jim | 1:43:22.00 | 87.59 | Maxton Yamaha |
| 31 | Kelly, Herbie | 1:43:54.00 | 87.15 | Yamaha |
| 32 | Haynes, Ray | 1:44:13.00 | 86.88 | Yamaha |
| 33 | Bird, Mick | 1:45:19.00 | 85.97 | Yamaha |
| 34 | Dickenson, John | 1:46:06.00 | 85.34 | Yamaha |
| 35 | Collard, William | 1:46:31.00 | 85 | Yamaha |
| 36 | Connor, Des | 1:46:38.00 | 84.91 | Yamaha |
| 37 | Martin, Paul | 1:46:56.00 | 84.67 | Shepherd Yamaha |
| 38 | Royle, William | 1:47:45.00 | 84.03 | Yamaha |
| 39 | Hammond, Colin | 1:48:30.00 | 83.45 | Honda |
| 40 | Stephen, Richard | 1:48:37.00 | 83.35 | Yamaha |
| 41 | Adams, George | 1:48:54.00 | 83.14 | Yamaha |
| 42 | Howarth, Edward | 1:49:05.00 | 83.01 | Yamaha |
| 43 | Bolland, Kevin | 1:50:08.00 | 82.21 | Yamaha |
| 44 | Brown, Michael | 1:51:11.00 | 81.44 | Yamaha |
| 45 | Stewart, Douglas | 1:51:52.00 | 90.93 | Yamaha |
| 46 | Whittaker, Graham | 1:52:23.00 | 80.57 | Yamaha |
| 47 | Ward, Mick | 1:52:53.00 | 80.21 | Maxton Yamaha |
| 48 | Sewart, Geoff | 1:55:03.00 | 80.09 | Cotton |
| 50 | Staley, John | 1:56:22.00 | 77.8 | Yamaha |
| 51 | Bandeen, Chad | 1:57:57.00 | 76.77 | Yamaha |
| 52 | Hadwin, Geoff | 1:58:43.00 | 76.26 | Yamaha |
| 53 | Brown, Ron | 1:59:24.00 | 75.83 | Yamaha |
| 54 | Dock, Dave | 1:59:42.00 | 75.64 | Ducati |
| 55 | Harvey, Robert | 1:59:48.00 | 75.58 | Aermacchi |
| 56 | Wynne, Pat | 2:02:18.00 | 74.03 | Yamaha |
| R | Anderson, Simon | Yamaha | ||
| R | Appleby, Roger | Yamaha | ||
| R | Broadhead, Dave | Yamaha | ||
| R | Cole, Stewart | Yamaha | ||
| R | Collister, Sean | Yamaha | ||
| R | Connell, Don | Yamaha | ||
| R | Cranston, Paul | Yamaha | ||
| R | Greenham, David | Aermacchi | ||
| R | Hagan, Philip | Greeves | ||
| R | Hardman, Colin | Yamaha | ||
| R | Hart, Hans | Yamaha | ||
| R | Limerick, John | Yamaha | ||
| R | McGladdery, Andy | Yamaha | ||
| R | Morss, Gordon | Greeves | ||
| R | Fitzsimmons, Richard | Suzuki |