# Junior TT

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.

## 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

### 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 (207.922 km/h) 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 (203.909 km/h) set by Dean Harrison during the 2018 600cc Supersport TT Race 2.

## List of Junior/Supersport TT winners

| Year | Rider | Manufacturer | Average race speed |
| 1911 | Percy J. Evans | Humber | 41.45 mph |
| 1912 | W. Harry Bashall | Douglas | 39.65 mph |
| 1913 | Hugh Mason | NUT | 43.75 mph |
| 1914 | Eric Williams | AJS | 45.58 mph |
| 1915-1919 | Not held | Not held | Not held |
| 1920 | Cyril Williams | AJS | 40.74 mph |
| 1921 | Eric Williams | AJS | 52.21 mph |
| 1922 | Tom Sheard | AJS | 54.75 mph |
| 1923 | Stanley Woods | Cotton | 55.74 mph |
| 1924 | Kenneth Twemlow | New Imperial | 55.678 mph |
| 1925 | Wal Handley | Rex-Acme | 65.02 mph |
| 1926 | Alec Bennett | Velocette | 66.704 mph |
| 1927 | Freddie Dixon | HRD | 67.19 mph |
| 1928 | Alec Bennett | Velocette | 68.65 mph |
| 1929 | Freddie Hicks | Velocette | 69.71 mph |
| 1930 | Henry Tyrell-Smith | Rudge | 71.08 mph |
| 1931 | Tim Hunt | Norton | 73.94 mph |
| 1932 | Stanley Woods | Norton | 77.16 mph |
| 1933 | Stanley Woods | Norton | 78.08 mph |
| 1934 | Jimmie Guthrie | Norton | 79.16 mph |
| 1935 | Jimmie Guthrie | Norton | 79.14 mph |
| 1936 | Freddie Frith | Norton | 80.14 mph |
| 1937 | Jimmie Guthrie | Norton | 84.43 mph |
| 1938 | Stanley Woods | Velocette | 84.08 mph |
| 1939 | Stanley Woods | Velocette | 83.19 mph |
| 1940-1946 | Not held | Not held | Not held |
| 1947 | Bob Foster | Velocette | 80.311 mph |
| 1948 | Freddie Frith | Velocette | 81.59 mph |
| 1949 | Freddie Frith | Velocette | 83.15 mph |
| 1950 | Artie Bell | Norton | 86.33 mph |
| 1951 | Geoff Duke | Norton | 93.83 mph |
| 1952 | Geoff Duke | Norton | 90.29 mph |
| 1953 | Ray Amm | Norton | 90.52 mph |
| 1954 | Rod Coleman | AJS | 91.51 mph |
| 1955 | Bill Lomas | Moto Guzzi | 92.33 mph |
| 1956 | Ken Kavanagh | Moto Guzzi | 89.29 mph |
| 1957 | Bob McIntyre | Gilera | 94.99 mph |
| 1958 | John Surtees | MV Agusta | 93.97 mph |
| 1959 | John Surtees | MV Agusta | 95.38 mph |
| 1960 | John Hartle | MV Agusta | 96.70 mph |
| 1961 | Phil Read | Norton | 95.11 mph |
| 1962 | Mike Hailwood | MV Agusta | 99.59 mph |
| 1963 | Jim Redman | Honda | 94.91 mph |
| 1964 | Jim Redman | Honda | 98.51 mph |
| 1965 | Jim Redman | Honda | 100.72 mph |
| 1966 | Giacomo Agostini | MV Agusta | 100.87 mph |
| 1967 | Mike Hailwood | Honda | 104.68 mph |
| 1968 | Giacomo Agostini | MV Agusta | 104.78 mph |
| 1969 | Giacomo Agostini | MV Agusta | 101.81 mph |
| 1970 | Giacomo Agostini | MV Agusta | 101.77 mph |
| 1971 | Tony Jefferies | Yamsel | 89.91 mph |
| 1972 | Giacomo Agostini | MV Agusta | 102.03 mph |
| 1973 | Tony Rutter | Yamaha | 101.99 mph |
| 1974 | Tony Rutter | Yamaha | 104.44 mph |
| 1975 | Charlie Williams | Yamaha | 104.38 mph |
| 1976 | Chas Mortimer | Yamaha | 106.78 mph |
| 1977 | Charlie Williams | Yamaha | 99.62 mph |
| 1978 | Chas Mortimer | Yamaha | 100.71 mph |
| 1979 | Charlie Williams | Yamaha | 105.13 mph |
| 1980 | Charlie Williams | Yamaha | 102.22 mph |
| 1981 | Steve Tonkin | Armstrong | 106.21 mph |
| 1982 | Con Law | Waddon | 105.32 mph |
| 1983 | Con Law | EMC | 108.09 mph |
| 1984 | Graeme McGregor | EMC | 109.57 mph |
| 1985 | Joey Dunlop | Honda | 109.91 mph |
| 1986 | Steve Cull | Honda | 109.62 mph |
| 1987 | Eddie Laycock | EMC | 108.52 mph |
| 1988 | Joey Dunlop | Honda | 111.87 mph |
| 1989 | Johnny Rea | Honda | 112.12 mph |
| 1990 | Ian Lougher | Yamaha | 115.16 mph |
| 1991 | Robert Dunlop | Yamaha | 114.89 mph |
| 1992 | Brian Reid | Yamaha | 115.13 mph |
| 1993 | Brian Reid | Yamaha | 115.14 mph |
| 1994 | Joey Dunlop | Honda | 114.67 mph |
| 1995 | Iain Duffus | Honda | 116.58 mph |
| 1996 | Phillip McCallen | Honda | 117.65 mph |
| 1997 | Ian Simpson | Honda | 118.41 mph |
| 1998 | Michael Rutter | Honda | 114.37 mph |
| 1999 | Jim Moodie | Honda | 118.11 mph |
| 2000 | David Jefferies | Yamaha | 119.33 mph |
| 2001 | Not held | Not held | Not held |
| 2002 | Jim Moodie | Yamaha | 119.22 mph |
| 2003 | Bruce Anstey | Triumph | 120.36 mph |
| 2004 | John McGuinness | Yamaha | 120.57 mph |
| 2005 | Ian Lougher | Honda | 120.928 mph |
| 2005 | Ryan Farquhar | Kawasaki | 120.627 mph |
| 2006 | John McGuinness | Honda | 122.264 mph |
| 2007 | Ian Hutchinson | Honda | 123.225 mph |
| 2008 | Steve Plater | Yamaha | 122.338 mph |
| 2008 | Bruce Anstey | Suzuki | 123.041 mph |
| 2009 | Ian Hutchinson | Honda | 124.141 mph |
| 2009 | Michael Dunlop | Yamaha | 121.416 mph |
| 2010 | Ian Hutchinson | Honda | 124.677 mph |
| 2010 | Ian Hutchinson | Honda | 125.161 mph |
| 2011 | Bruce Anstey | Honda | 124.232 mph |
| 2011 | Gary Johnson | Honda | 123.819 mph |
| 2012 | Bruce Anstey | Honda | 124.160 mph |
| 2012 | Michael Dunlop | Yamaha | 123.543 mph |
| 2013 | Michael Dunlop | Honda | 125.182 mph |
| 2013 | Michael Dunlop | Honda | 125.997 mph |
| 2014 | Gary Johnson | Triumph | 125.078 mph |
| 2014 | Michael Dunlop | Honda | 124.526 mph |
| 2015 | Ian Hutchinson | Yamaha | 125.451 mph |
| 2015 | Ian Hutchinson | Yamaha | 125.803 mph |
| 2016 | Ian Hutchinson | Yamaha | 126.445 mph |
| 2016 | Ian Hutchinson | Yamaha | 125.905 mph |
| 2017 | Michael Dunlop | Yamaha | 124.368 mph |
| Supersport TT 2 Cancelled due to weather conditions |||
| 2018 | Michael Dunlop | Honda | 126.027 mph |
| 2018 | Dean Harrison | Kawasaki | 126.703 mph |
| 2019 | Lee Johnston | Yamaha | 126.449 mph |
| 2019 | Peter Hickman | Triumph | 127.671 mph |
| 2022 | Michael Dunlop | Yamaha | |

### Race winners (riders)

| Rider | Wins |
| Ian Hutchinson, Michael Dunlop | 8 |
| Giacomo Agostini, Stanley Woods | 5 |
| Bruce Anstey, Charlie Williams | 4 |
| Joey Dunlop, Freddie Frith, Jimmie Guthrie, Jim Redman | 3 |
| Alec Bennett, Brian Reid, Geoff Duke, Mike Hailwood, Gary Johnson, Con Law, Ian Lougher, John McGuinness, Chas Mortimer, Jim Moodie, John Surtees, Eric Williams | 2 |
| Rod Coleman, Percy J. Evans, Ryan Farquhar, Peter Hickman, David Jefferies, Lee Johnston, Ken Kavanagh, Dave Leach, Bill Lomas, Phil Mellor, Steve Plater, Michael Rutter, T. M. Sheard, H. G. Tyrell Smith | 1 |

### Race winners (manufacturers)

| 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

| 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 | MV Agusta |
| 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 |