1958 Speedway National League
The 1958 National League was the 24th season and the thirteenth post-war season of the highest tier of motorcycle speedway in Great Britain.
Summary
Bradford Tudors who had dropped out at the start of the previous season only to return in mid-season, had dropped out again. Promoter Vic Gooden moved the entire promotion and team of Rayleigh Rockets to Poole Pirates.Wimbledon Dons won their fourth title in five years.
National Trophy
The 1958 National Trophy was the 20th edition of the Knockout Cup. Belle Vue were the winners.First round
| Date | Team one | Score | Team two |
| 30/05 | Leicester | 65-54 | Southampton |
| 29/05 | Oxford | 58-61 | Poole |
| 27/05 | Southampton | 84-36 | Leicester |
| 26/05 | Poole | 60-60 | Oxford |
Second round
| Date | Team one | Score | Team two |
| 03/07 | Ipswich | 42-77 | Swindon |
| 30/06 | Poole | 49-71 | Belle Vue |
| 30/06 | Wimbledon | 67-53 | Norwich |
| 28/06 | Belle Vue | 80-40 | Poole |
| 28/06 | Coventry | 57-63 | Southampton |
| 28/06 | Norwich | 72-48 | Wimbledon |
| 28/06 | Swindon | 78-42 | Ipswich |
| 24/06 | Southampton | 78-42 | Coventry |
'''Semifinals'''
Final
First legSecond leg
Belle Vue were National Trophy Champions, winning on aggregate 136–103.
Britannia Cup
South| Team | PL | W | D | L | Pts |
| Wimbledon | 8 | 8 | 0 | 0 | 16 |
| Swindon | 8 | 4 | 0 | 4 | 8 |
| Southampton | 8 | 4 | 0 | 4 | 8 |
| Norwich | 8 | 3 | 0 | 5 | 6 |
| Poole | 8 | 1 | 0 | 7 | 2 |
North
| Team | PL | W | D | L | Pts |
| Belle Vue | 8 | 8 | 0 | 0 | 16 |
| Coventry | 8 | 4 | 0 | 4 | 8 |
| Ipswich | 8 | 3 | 1 | 4 | 7 |
| Leicester | 8 | 3 | 0 | 5 | 6 |
| Oxford | 8 | 1 | 1 | 6 | 3 |
Final
| Team one | Team two | Scores |
| Wimbledon | Belle Vue | 49–47, 43–53 |
Riders and final averages
Belle Vue- 11.00
- 7.90
- 7.76
- 6.45
- 6.41
- 6.40
- 5.33
- 5.28
- 1.25
- 0.80
- 10.02
- 8.00
- 7.78
- 6.88
- 6.64
- 5.47
- 4.89
- 4.46
- 2.62
- 9.73
- 6.39
- 4.93
- 3.89
- 3.89
- 3.81
- 3.58
- 3.50
- 3.00
- 10.82
- 9.08
- 7.65
- 5.46
- 4.62
- 4.38
- 3.89
- 2.86
- 11.60
- 9.08
- 8.20
- 7.19
- 7.03
- 5.44
- 4.76
- 4.30
- 3.48
- 3.20
- 2.35
- 0.00
- 7.40
- 7.26
- 6.75
- 6.48
- 6.43
- 5.37
- 5.35
- 5.14
- 4.24
- 2.00
- 1.60
- 9.69
- 7.11
- 6.23
- 6.12
- 5.75
- Trevor Blokdyk 4.76
- 4.48
- 4.31
- 3.91
- 3.16
- 10.03
- 8.39
- 7.73
- 7.47
- 6.57
- 6.33
- 5.74
- 5.60
- 5.25
- 3.67
- 3.40
- 8.36
- 8.34
- 8.32
- 8.00
- 6.15
- 4.47
- 3.89
- 2.62
- 2.48
- 10.43
- 9.47
- 9.09
- 6.76
- 6.73
- 6.41
- 5.82
- 1.09