1999 Lightweight 400 TT
Course name: Mountain (post 1914)
Course length: 150.92 miles (4 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Williams, Paul | 1:23:04.00 | 109.01 | Honda |
| 2 | Piercy, Nigel | 1:24:15.80 | 107.46 | Honda |
| 3 | McMullan, Geoff | 1:25:34.70 | 105.81 | Yamaha |
| 3= | Jefferies, Nick | 1:25:34.70 | 105.81 | Yamaha |
| 5 | Gardiner, Brian | 1:25:52.30 | 105.45 | Kawasaki |
| 6 | Morris, Dave | 1:26:40.40 | 104.47 | Chrysalis |
| 7 | Degerholm, Blair | 1:27:26.80 | 103.55 | Kawasaki |
| 8 | Vincent, Jon | 1:28:50.20 | 101.93 | Yamaha |
| 9 | Jarmann, Peter | 1:29:05.10 | 101.64 | Kawasaki |
| 10 | Swallow, Bill | 1:29:33.90 | 101.1 | Honda |
| 11 | Dey, Steve | 1:30:02.10 | 100.57 | Kawasaki |
| 12 | Smith, Bill | 1:31:06.30 | 99.39 | Yamaha |
| 13 | Murphy, Kevin | 1:31:41.20 | 98.76 | Yamaha |
| 14 | Hawkins, Rich | 1:31:44.30 | 98.7 | Honda |
| 15 | Chittka, Heinz | 1:31:47.10 | 98.65 | Yamaha |
| 16 | McGee, Peter | 1:32:04.90 | 98.33 | Yamaha |
| 17 | Chamley, Alan | 1:32:16.50 | 98.13 | Honda |
| 18 | Madsen-Mygdal, Dave | 1:32:25.70 | 97.96 | Honda |
| 19 | Dobbs, Paul | 1:32:28.50 | 97.62 | Suzuki |
| 20 | Noon, Stuart | 1:32:58.60 | 97.39 | Honda |
| 21 | Moss, Tony | 1:33:51.80 | 96.47 | Yamaha |
| 22 | Granados, Wyatt | 1:35:06.30 | 95.21 | Yamaha |
| R | Murdoch, Stuart | Honda | ||
| R | Stokes, Trevor | Honda | ||
| R | Price, Robert J. | Suzuki |