1948 Speedway National League
| Competition | National League Division One |
|---|---|
| Season | 1948 |
| No. of competitors | 7 |
| Champion | New Cross Rangers |
The 1948 National League Division One was the third post-war season of the highest tier of motorcycle speedway in Great Britain. The entrant list was the same as the previous season. New Cross Rangers won the National League for the second time.
Final table
| Team | PL | W | D | L | Pts |
| New Cross Rangers | 24 | 17 | 0 | 7 | 34 |
| Harringay Racers | 24 | 16 | 0 | 8 | 32 |
| West Ham Hammers | 24 | 14 | 1 | 9 | 29 |
| Wembley Lions | 24 | 12 | 1 | 11 | 25 |
| Belle Vue Aces | 24 | 12 | 1 | 11 | 25 |
| Wimbledon Dons | 24 | 5 | 2 | 17 | 12 |
| Odsal Boomerangs | 24 | 5 | 1 | 18 | 11 |
On account of the small number of teams in the league the Anniversary Cup was run in a league format. Harringay Racers finished on top.
Anniversary Cup table
| Team | PL | W | D | L | Pts |
| Harringay Racers | 12 | 9 | 0 | 3 | 18 |
| Belle Vue Aces | 12 | 7 | 0 | 5 | 14 |
| Odsal Boomerangs | 12 | 7 | 0 | 5 | 14 |
| New Cross Rangers | 12 | 6 | 0 | 6 | 12 |
| West Ham Hammers | 12 | 6 | 0 | 6 | 12 |
| Wembley Lions | 12 | 5 | 0 | 7 | 10 |
| Wimbledon Dons | 12 | 2 | 0 | 10 | 4 |
Top Ten Riders (League only)
| Rider | Team | C.M.A. | |
| 1 | Vic Duggan | Harringay Racers | 11.42 |
| 2 | Ron Johnson | New Cross Rangers | 10.33 |
| 3 | Wilbur Lamoreaux | Wembley Lions | 9.71 |
| 4 | George Wilks | Wembley Lions | 9.65 |
| 5 | Max Grosskreutz | Odsal Boomerangs | 9.63 |
| 6 | Aub Lawson | West Ham Hammers | 9.59 |
| 7 | Alec Statham | Wimbledon Dons | 9.48 |
| 8 | Jack Parker | Belle Vue Aces | 9.35 |
| 9 | Eric Chitty | West Ham Hammers | 9.21 |
| 10 | Norman Parker | Wimbledon Dons | 9.09 |
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