1946 Speedway National League
The 1946 National League was the 12th season of the highest tier of motorcycle speedway in Great Britain and the first post-war season.
The league had been abandoned seven years previously due to the outbreak of World War II. Record attendances were attracted with Wembley Lions attracting an average of 50,000 and the league as a whole a total of six and a half million. From the abandoned 1939 season, Southampton Saints and Harringay Tigers were no longer racing whilst Odsal Boomerangs brought National League speedway to Bradford for the first time.
Wembley Lions won their second National League title.
On 6 July, a crowd of 34,0000 at Odsal Stadium witnessed Odsal Boomerangs lose to Belle Vue Aces. During the match Albert 'Aussie' Rosenfeld, son of Albert Rosenfeld hit the fence and was taken to St Luke's Hospital, Bradford, with a suspected fractured skull. He died 10 days later, on 16 July 1946.
A.C.U. Cup
On account of the small number of teams in the league the ACU Cup was run in a league format. Belle Vue Aces came out on top.Final table
Such was the dearth of new riders caused by the war that all of the top ten riders were established pre-war riders and none were below the age of 32.National Trophy
The 1946 National Trophy was the tenth edition or ninth edition of the Knockout Cup. Teams from the lower 1946 Speedway Northern League competed in the event.First round
| Date | Team one | Score | Team two |
| 04/05 | Birmingham | 56–48 | Norwich |
| 27/04 | Norwich | 53–51 | Birmingham |
Second round
| Date | Team one | Score | Team two |
| 25/05 | Birmingham | 61–45 | Middlesbrough |
| 16/05 | Middlesbrough | 58–50 | Birmingham |
| 29/04 | Newcastle | 49–56 | Middlesbrough |
| 25/04 | Middlesbrough | 55–51 | Newcastle |
| 25/04 | Sheffield | 61–47 | Glasgow White City |
| 24/04 | Glasgow White City | 61–47 | Sheffield |
| 09/05 replay | Sheffield | 63–44 | Glasgow White City |
| 08/05 replay | Glasgow White City | 62–45 | Sheffield |
Quarterfinals
| Date | Team one | Score | Team two |
| 22/06 | Birmingham | 31–77 | Wembley |
| 13/06 | Wembley | 80–27 | Birmingham |
| 20/07 | Bradford Odsal | 72–36 | Sheffield |
| 04/07 | Sheffield | 48–60 | Bradford Odsal |
| 02/07 | West Ham | 55–52 | Wimbledon |
| 01/07 | Wimbledon | 63–44 | West Ham |
| 08/06 | Belle Vue | 58–49 | New Cross |
| 12/06 | New Cross | 50–57 | Belle Vue |
Semifinals
| Date | Team one | Score | Team two |
| 25/07 | Wembley | 50–57 | Belle Vue |
| 13/07 | Belle Vue | 60–48 | Wembley |
| 19/08 | Wimbledon | 62–46 | Bradford Odsal |
| 03/08 | Bradford Odsal | 53–55 | Wimbledon |
Final
First legSecond leg
Belle Vue were National Trophy Champions, winning on aggregate 109–106.
Riders' Championship
Tommy Price won the British Riders' Championship final held at Empire Stadium on 12 September, in front of 85,000 spectators. There were no less than 23 qualifying rounds, where riders from National and Northern League tracks respectively, competed in six meetings each.| Pos. | Rider | Heat Scores | Total | |||||||
| 1 | ![]() London CupFirst round
FinalFirst legSecond leg Wembley won on aggregate '''121–95''' Riders & final averagesBelle Vue
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