Junior TT
Annual motorcycle race on the Isle of Man
title: "Junior TT" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["isle-of-man-tt"] description: "Annual motorcycle race on the Isle of Man" topic_path: "general/isle-of-man-tt" source: "https://en.wikipedia.org/wiki/Junior_TT" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Annual motorcycle race on the Isle of Man ::
::data[format=table title="Infobox Isle of Man TT races"]
| Field | Value |
|---|---|
| year | 2014 |
| image | 2013 Isle of Man TT 13.jpg |
| caption | 2013 Isle of Man TT Supersport TT Race 2 Michael Dunlop (6), 600cc Honda TT Grandstand 5 June 2013 |
| date | 2 & 4 June 2014 |
| location | Douglas, IOM Isle of Man |
| type | Road Course |
| current course | Snaefell Mountain Course |
| 37.73 mi | |
| race3 | Supersport TT Race 1 |
| race3_pole | ENG Gary Johnson |
| race3_fast | ENG Gary Johnson |
| race3_pole_speed | 125.934 mph |
| race3_fast_speed | 126.732 mph |
| race3_1st | ENG Gary Johnson |
| race3_2nd | NZL Bruce Anstey |
| race3_3rd | NIR Michael Dunlop |
| race6 | Supersport TT Race 2 |
| race6_pole | ENG Gary Johnson |
| race6_fast | NIR Michael Dunlop |
| race6_pole_speed | 125.934 mph |
| race6_fast_speed | 127.403 mph |
| race6_1st | NIR Michael Dunlop |
| race6_2nd | NZL Bruce Anstey |
| race6_3rd | NIR William Dunlop |
| :: |
| year = 2014 | image = 2013 Isle of Man TT 13.jpg | alt = | caption = 2013 Isle of Man TT Supersport TT Race 2 Michael Dunlop (6), 600cc Honda TT Grandstand 5 June 2013 | date = 2 & 4 June 2014 | location = Douglas, IOM Isle of Man | type = Road Course | current course = Snaefell Mountain Course 37.73 mi | race3 = Supersport TT Race 1 | race3_pole = ENG Gary Johnson | race3_fast = ENG Gary Johnson | race3_pole_speed = 125.934 mph | race3_fast_speed = 126.732 mph | race3_1st = ENG Gary Johnson | race3_2nd = NZL Bruce Anstey | race3_3rd = NIR Michael Dunlop
| race6 = Supersport TT Race 2 | race6_pole = ENG Gary Johnson | race6_fast = NIR Michael Dunlop | race6_pole_speed = 125.934 mph | race6_fast_speed = 127.403 mph | race6_1st = NIR Michael Dunlop | race6_2nd = NZL Bruce Anstey | race6_3rd = NIR William Dunlop
The Junior TT is a motorcycle road race that takes place during the Isle of Man TT festival; an annual event at the end of May and beginning of June. Between 1949 and 1976 this race was part of the Grand Prix motorcycle racing season.
Engine capacity
The 1911 Isle of Man TT was the first time the Junior TT race took place and was open to 300cc single-cylinder and 340cc twin cylinder motor-cycles and was contested over 5 laps of the new 37.5 mile Mountain Course. The first event on the new course was the Junior TT Race and was contested by 35 entrants. It was won by Percy J. Evans riding a Humber motorcycle in 3 hours, 37 minutes and 7 seconds at an average speed of 41.45 mph.
The 1912 event was the first to limit the Junior TT to only 350 cc machines and this engine capacity prevailed until 1994. ::data[format=table]
| Years | Maximum Engine Capacity |
|---|---|
| 1911 | 300cc (Single cylinder) |
| 1912 - 1976 | 350cc |
| 1977 - 1994 | 250cc |
| 1995 - 2004 | 600cc |
| 2005 - Present | 600cc (Four cylinder) |
| :: |
Eligibility
Entrants
- Entrants must be in possession of a valid National Entrants or FIM Sponsors Licence for Road Racing.
Machines
The 2012 specification for entries into the Junior TT race are defined as;-
- Any machine complying with the following specifications:
- Supersport TT: (Machines complying with the 2012 FIM Supersport Championships specifications)
- Over 400cc up to 600cc 4 cylinders 4-stroke
- Over 600cc up to 675cc 3 cylinders 4-stroke
- Over 600cc up to 750cc 2 cylinders 4-stroke
- Supersport TT: (Machines complying with the 2012 FIM Supersport Championships specifications)
Official qualification time
- 115% of the time set by the third fastest qualifier in the class.
Speed and lap records
The lap record for the Junior TT is 17 minutes and 31.328 seconds, at an average speed of 129.197 mph set by Michael Dunlop on lap 2 of the 2018 Isle of Man TT 600cc Supersport Junior TT Race 1. The race record for a four-lap Junior TT is 1 hour, 11 minutes and 28.059 seconds at an average race speed of 126.703 mph set by Dean Harrison during the 2018 600cc Supersport TT Race 2.
List of Junior/Supersport TT winners
::data[format=table]
Race winners (riders)
::data[format=table]
Race winners (manufacturers)
::data[format=table]
| Marque | Wins |
|---|---|
| Honda | 26 |
| Yamaha | 25 |
| Norton | 12 |
| MV Agusta | 9 |
| Velocette | 8 |
| AJS | 5 |
| EMC, Triumph | 3 |
| Moto Guzzi, Kawasaki | 2 |
| Armstrong, Cotton, Douglas, Gilera, Humber, HRD, New Imperial, NUT, Rex-Acme, Rudge-Whitworth, Suzuki, Waddon, Yamsel | 1 |
| :: |
Winners of Junior/Senior Double Isle of Man TT races
::data[format=table]
| Year | Name | Make of motorcycle |
|---|---|---|
| 1931 | Tim Hunt | Norton |
| 1932/33 | Stanley Woods | Norton |
| 1934 | Jimmie Guthrie | Norton |
| 1951 | Geoff Duke | Norton |
| 1953 | Ray Amm | Norton |
| 1957 | Bob McIntyre | Gilera |
| 1958/59 | John Surtees | MV Agusta |
| 1967 | Mike Hailwood | Honda |
| 1968–70, 1972 | Giacomo Agostini | |
| 1985, 1988 | Joey Dunlop | Honda |
| 1996 | Phillip McCallen | Honda |
| 2000 | David Jefferies | Yamaha |
| 2006 | John McGuinness | Honda |
| 2010 | Ian Hutchinson | Honda |
| 2014 | Michael Dunlop | Honda / BMW |
| 2017 | Michael Dunlop | Yamaha / Suzuki |
| :: |
References
References
- ''International Tourist Trophy Regulations 2012'' page 3/Appendix A page 34 ACU Events (Isle of Man) Limited (2012) Isle of Man Department of Economic Development
- ''International Tourist Trophy Regulations 2012'' page 19 ACU Events (Isle of Man) Limited (2012) Isle of Man Department of Economic Development
- (4 June 2018). "Michael Dunlop wins record breaking Monster Energy Supersport TT Race 1". Duke Marketing Ltd..
- (6 June 2018). "Harrison sets new race record in Supersport Race 2". Duke Marketing Ltd..
- (6 June 2018). "Monster Energy Supersport TT 2 - Result Sheet". Duke Marketing Ltd..
- "TT Fact Zone". Duke Marketing Ltd..
::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::