1928 Isle of Man TT
In the 1928 Isle of Man Tourist Trophy the newly developed 'positive-stop' foot gear-change by Velocette gave Alec Bennett his fifth TT Race win in the 1928 Junior, in the time of 3 hours, 50 minutes and 52 seconds, at an average speed of 68.65 mph (110.48 km/h), and setting a lap record at an average speed of 67.19 mph (108.13 km/h), with his team-mate Harold Willis coming second.
The 1928 Lightweight TT Race was led from start to finish by Frank Longman on an OK-Supreme motorcycle at an average speed of 62.87 mph (101.18 km/h). In contrast the 1928 Senior TT Race was held in heavy rain and mist. The bad race conditions produced many retirements and a slow average speed. The eventual winner of the 1928 Senior TT Race was Charlie Dodson, riding a Sunbeam motorcycle, in 4 hours, 11 minutes and 40 seconds, at an average speed of 62.98 mph (101.36 km/h).
Senior TT (500cc)
| Rank | Rider | Team | Speed | Time |
|---|---|---|---|---|
| 1 |  Charlie Dodson |
Sunbeam | 62.98 mph | 4.11.40.0 |
| 2 | George Rowley |
AJS | 61.27 | 4.18.41.0 |
| 3 | Tommy L Hatch |
Scott | 60.89 | 4.20.18.0 |
| 4 |  H. G. Tyrell Smith |
Rudge | 60.52 | 4.21.58.0 |
| 5 | Stanley Woods |
Norton | 60.42 | 4.22.19.0 |
| 6 | Ted Mellors |
Norton | 59.77 | 4.25.10.0 |
| 7 | F Franconi |
Sunbeam | 59.61 | 4.25.53.0 |
| 8 | John G Duncan |
Raleigh | 59.59 | 4.26.00.0 |
| 9 | A E Warwick |
P&M | 59.15 | 4.27.58.0 |
| 10 | A R Quinn |
Triumph | 59.13 | 4.28.04.0 |
Junior TT (350cc)
| Rank | Rider | Team | Speed | Time |
|---|---|---|---|---|
| 1 | Alec Bennett |
Velocette | 68.65 mph (110.48 km/h) | 3.50.52.0 |
| 2 | Harold J Willis |
Velocette | 67.16 | 3.56.00.0 |
| 3 | Kenneth Twemlow |
DOT | 66.67 | 4.08.57.0 |
| 4 | Syd Crabtree |
Excelsior | 63.16 | 4.10.57.0 |
| 5 | Freddie Hicks |
Velocette | 63.11 | 4.11.09.0 |
| 6 | George L Reynard |
Royal Enfield | 62.9 | 4.12.00.0 |
| 7 | Cecil Ashby |
Raleigh | 62.2 | 4.15.19.0 |
| 8 | S P Jackson |
Montgomery | 61.8 | 4.16.13.0 |
| 9 | Bernard Laurence Hieatt |
Cotton | 61.3 | 4.18.34.0 |
| 10 | Chris Tattersall |
DOT | 60.7 | 4.21.00.0 |
Lightweight TT (250cc)
| Rank | Rider | Team | Speed | Time |
|---|---|---|---|---|
| 1 | Frank Longman |
OK-Supreme | 62.9 mph | 4.11.59.0 |
| 2 | C S Barrow |
Royal Enfield | 58.92 | 4.29.01.0 |
| 3 | Edwin Twemlow |
DOT | 58.83 | 4.29.26.0 |
| 4 | George Himing |
OK-Supreme | 58.4 | 4.31.30.0 |
| 5 | Cecil Ashby |
OK Supreme | 57.9 | 4.33.31.0 |
| 6 | Vic C Anstice |
OK Supreme | 57.7 | 4.34.31.0 |
| 7 | S H Jones |
New Imperial | 57.1 | 4.37.38.0 |
| 8 | Jack A Porter |
New Gerrard | 56.8 | 4.39.15.0 |
| 9 | Sid Gleave |
New Imperial | 56.4 | 4.41.17.0 |
| 10 | J G Burney |
Royal Enfield | 55.6 | 4.45.12.0 |