2006 Isle of Man TT
The 99th anniversary Isle of Man TT Festival ran between Saturday 27 May and Friday 9 June on the 37.73-mile Mountain Course. The first week is known as the practice week, before the real action commenced on 3 June. There were 6 races in TT week. John McGuinness broke the lap record during practice for the Superbike race and then did it again in the race itself. He recorded a lap of 17:41.71, breaking the Superbike record from last year by 8.62 seconds and his outright lap record by 2.1 seconds.
McGuinness then went on to take his first TT hat-trick by winning the Senior TT on 9 June, destroying the lap record in the process. He set a lap of 17:39.95 from a standing start then 17:29.26 on his 2nd lap. However, the meeting was overshadowed by the death of Japanese rider Jun Maeda on 6 June due to injuries suffered in a practice crash.
Results
- Race 1 – Jester Interactive TT Superbike Race 3 June
| Rank | Rider | Team | Speed | Time |
| 1 |  John McGuinness | Honda | 124.764 mph | 1:48.52.06 |
| 2 |  Ian Lougher | Honda | 124.021 mph | 1:49.31.20 |
| 3 | Ian Hutchinson | Kawasaki | 123.58 mph | 1:49.54.61 |
| 4 |  Martin Finnegan | Honda | 122.385 mph | 1:50.59.02 |
| 5 |  Cameron Donald | Honda | 122.881 mph | 1:51.26.54 |
| 6 | Jason Griffiths | Yamaha | 121.821 mph | 1:51.59.67 |
| 7 | Carl Rennie | Kawasaki | 121.217 mph | 1:52.03.19 |
| 8 |  Paul Hunt | Yamaha | 120.925 mph | 1:52.19.41 |
| 9 |  Davy Morgan | Honda | 120.425 mph | 1:52.45.90 |
| 10 | Raymond Porter | Yamaha | 120.427 mph | 1:52.47.28 |
New Outright Lap Record: John McGuinness, 127.933 mph
- Race 2 – Scottish Life International TT Superstock Race 5 June
| Rank | Rider | Team | Speed | Time |
| 1 |  Bruce Anstey | Suzuki | 124.147 mph | 1:12.56.34 |
| 2 | Ian Hutchinson | Kawasaki | 123.912 mph | 1:13.04.64 |
| 3 | Jason Griffiths | Yamaha | 123.25 mph | 1:13.28.19 |
| 4 | Guy Martin | Yamaha | 122.946 mph | 1:13.39.09 |
| 5 | John McGuinness | Honda | 122.106 mph | 1:14.09.48 |
| 6 | Ian Lougher | Honda | 121.209 mph | 1:14.42.43 |
| 7 | Martin Finnegan | Honda | 120.602 mph | 1:15.04.30 |
| 8 | Mark Parrett | Yamaha | 119.972 mph | 1:15.28.65 |
| 9 | Gary Carswell | Suzuki | 119.923 mph | 1:15.30.51 |
| 10 | Rob Frost | Honda | 119.627 mph | 1:15.41.70 |
- Race 3 – Hilton Hotel & Casino Sidecar TT, Race A 5 June
| Rank | Rider | Team | Speed | Time |
| 1 | Nick Crowe / Darren Hope | Honda | 113.342 mph | 1:00:27.15 |
| 2 | Steve Norbury / Scott Parnell | Yamaha | 110.902 mph | 1:01:14.26 |
| 3 | John Holden / Andrew Winkle | Honda | 109.635 mph | 1:01:56.71 |
| 4 | Roy Hanks / David Wells | Yamaha | 109.321 mph | 1:02:07.38 |
| 5 | Gary Bryan / Colin Hardman | Yamaha | 109.098 mph | 1:02:15.02 |
| 6 | Andrew Laidlow / Patrick Farrance | LCR Suzuki | 108.562 mph | 1:02:33.45 |
| 7 | Philip Dongworth / Stuart Castles | Ireson Yamaha | 108.321 mph | 1:02:42.13 |
| 8 | Tony Elmer / Darren Marshall | Ireson Yamaha | 107.584 mph | 1:03:07.57 |
| 9 | Glyn Jones / Chris Lake | DMR Honda | 106.824 mph | 1:03:34.50 |
| 10 | David Wallis / Sally Wilson | Honda | 106.492 mph | 1:03:46.40 |
- Race 4 – Isle of Man Steam Packet Supersport Junior TT 7 June
| Rank | Rider | Team | Speed | Time |
| 1 | John McGuinness | Honda | 122.264 mph | 1:14:03.73 |
| 2 | Bruce Anstey | Suzuki | 121.542 mph | 1:14:30.13 |
| 3 | Jason Griffiths | Yamaha | 120.707 mph | 1:15:01.08 |
| 4 | Ian Lougher | Honda | 120.388 mph | 1:15:13.00 |
| 5 | Cameron Donald | Honda | 119.552 mph | 1:15:44.56 |
| 6 | Martin Finnegan | Honda | 119.207 mph | 1:15:57.70 |
| 7 | Nigel Beattie | Yamaha | 119.116 mph | 1:16:01.19 |
| 8 | Dan Stewart | Yamaha | 118.524 mph | 1:16:23.97 |
| 9 | Mark Parrett | Yamaha | 118.329 mph | 1:16:31.53 |
| 10 | Chris Palmer | Honda | 117.952 mph | 1:16:46.20 |
New Lap Record: John McGuinness, 123.975 mph
Note: Ian Hutchinson did finish 2nd in the Supersport race, but was later disqualified, as his Kawasaki ZX-6 was deemed to be illegal due to a 0.2mm difference in cam dimensions. However, McAdoo Racing have lodged an appeal to have the position re-instated.
- Race 5 – Hilton Hotel & Casino Sidecar TT, Race B 7 June
| Rank | Rider | Team | Speed | Time |
| 1 | Nick Crowe / Darren Hope | DMR Honda | 111.467 mph | 1:00:55.64 |
| 2 | Steve Norbury / Scott Parnell | Yamaha | 110.376 mph | 1:01:31.78 |
| 3 | Roy Hanks / Dave Wells | DMR Honda | 108.67 mph | 1:02:29.73 |
| 4 | Bill Currie / Mark Cox | Windle Yamaha | 107.312 mph | 1:03:17.16 |
| 5 | Tony Baker / Mark Hegarty | Yamaha | 107.181 mph | 1:03:21.81 |
| 6 | Conrad Harrison / Kris Hibberd | Honda | 106.426 mph | 1:03:48.78 |
| 7 | Roger Stockton / Pete Alton | Yamaha | 105.614 mph | 1:04:18.23 |
| 8 | Kenny Howles / Doug Jewell | Suzuki | 105.582 mph | 1:04:19.39 |
| 9 | John Holden / Andrew Winkle | Honda | 105.569 mph | 1:04:19.85 |
| 10 | Nigel Connole / Jamie Winn | Honda | 105.362 mph | 1:04:27.46 |
- Race 6 – Jester Interactive Senior TT 9 June
| Rank | Rider | Team | Speed | Time |
| 1 | John McGuinness | Honda | 126.178 mph | 1:47:38.84 |
| 2 | Cameron Donald | Honda | 125.68 mph | 1:47:59.45 |
| 3 | Bruce Anstey | Suzuki | 125.596 mph | 1:48:08.79 |
| 4 | Ian Lougher | Honda | 125.396 mph | 1:48:19.11 |
| 5 | Guy Martin | Yamaha | 123.841 mph | 1:49:40.71 |
| 6 | Carl Rennie | Kawasaki | 122.411 mph | 1:50:57.62 |
| 7 | Davy Morgan | Honda | 121.646 mph | 1:51:39.48 |
| 8 | Raymond Porter | Yamaha | 121.439 mph | 1:51:50.90 |
| 9 | Nigel Beattie | Yamaha | 121.137 mph | 1:52:07.60 |
| 10 | Gary Carswell | Suzuki | 121.027 mph | 1:52:13.76 |
New Outright Lap Record: John McGuinness, 129.451 mph