The 1933 Isle of Man TT saw a double victory for Stanley Woods, who won the Junior TT Race at an average speed of 78.08 mph (125.66 km/h), heading a top three place finish for riders from the Norton marque, followed by Tim Hunt and Jimmie Guthrie.

The 1933 Lightweight TT Race was not contested by Norton and the winner was Syd Gleave riding an Excelsior motor-cycle at an average speed of 71.59 mph (115.21 km/h). Teammate Frank Longman, the winner of the 1928 Lightweight TT Race, crashed at Glentramman Corner during the same race and died later of his injuries in hospital.

The 1933 Senior TT Race gave Stanley Woods another Junior/Senior double win. The seven-lap (264.11 mile) race was completed in 3 hours, 15 minutes and 35 seconds at an average race speed of 81.04 mph (130.42 km/h) and the works Norton's taking the first four places along with Jimmie Simpson, Tim Hunt and Jimmie Guthrie.

7 laps (264.11 miles) Mountain Course.

Rank Rider Team Speed Time
1   Stanley Woods Norton 81.04 mph (130.42 km/h) 3.15.35.0
2   Jimmie Simpson Norton 80.41 3:17.07.0
3   Tim Hunt Norton 80.16 3:17.43.0
4   Jimmie Guthrie Norton 79.49 3:19.24.0
5   Ernie Nott Rudge 77.91 3:23.27.0
6   Alec Mitchell Velocette 76.14 3:28.10.0
7   John G. Duncan Cotton 75.64 3:29.33.0
8   Ginger Wood Jawa 75.39 3:30.15.0
9   Henry Tyrell-Smith Rudge 75.34 3:30.22.0
10   Jack Williams Norton 74.58 3:32.32.0

7 laps (264.11 miles) Mountain Course.

Rank Rider Team Speed Time
1   Stanley Woods Norton 78.08 mph (125.66 km/h) 3.23.00.0
2   Tim Hunt Norton 78.03 3:23.07.0
3   Jimmie Guthrie Norton 76.59 3:26.56.0
4   Alec Mitchell Velocette 75.91 3:28.48.0
5   Henry Tyrell-Smith Velocette 75.46 3:30.02.0
6   Gilbert Emery Velocette 75.41 3:30.11.0
7   Wal Handley Velocette 74.98 3:32.23.0
8   Harold Newman Velocette 73.23 3:36.25.0
9   Don Hall Velocette 73.23 3:36.25.0
10   Ernie Thomas Velocette 72.82 3:37.05.0

7 laps (264.11 miles) Mountain Course.

Rank Rider Team Speed Time
1   Sid Gleave Excelsior 71.59 mph (115.21 km/h) 3.41.23.0
2   Charlie Dodson New Imperial 70.85 3:43.43.0
3   Charles Manders Rudge 69.17 3:49.08.0
4   Leo Davenport New Imperial 69.01 3:49.40.0
5   Syd Crabtree Excelsior 68.45 3:51.33.0
6   Mario Ghersi Moto Guzzi 69.09 3:52.46.0
7   Ted Mellors New Imperial 67.08 3:53.47.0
8   Les Martin Rudge 66.82 3:53.49.0
9   Colin Taylor OK-Supreme 66.41 3:58.45.0
10   Jock Fairweather Cotton 66.39 3:58.49.0
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