ULSTER GRAND PRIX
500cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Geoff Duke | 18:31.100 | |
| 2 | Ken Kavanagh | ||
| 3 | Umberto Masetti | ||
| 4 | Alfredo Milani | ||
| 5 | John Lockett | ||
| 6 | William Doran |
250cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Bruno Ruffo | — | |
| 2 | Maurice Cann | — | |
| 3 | Arthur Wheeler | — | |
| 4 | Tommy Wood | — | |
| 5 | Douglas Beasley | — | |
| 6 | Norman Blemings | — |
350cc · Course
| Pos | Pilote | Temps / écart | Pts |
|---|---|---|---|
| 1 | Geoff Duke | — | |
| 2 | Ken Kavanagh | — | |
| 3 | John Lockett | — | |
| 4 | Reg Armstrong | — | |
| 5 | William Doran | — | |
| 6 | Jack Brett | — |