Ballyclare, County Antrim, Northern Ireland, Great Britain
Circuit Type: Temporary road course
Original Layout
Extension: 6,665 Km
Lap Record: 03:06.000
Year: 1946
Driver: Reg Parnell
Car: Maserati 4CL
Speed: 128,981 Km/h
Pole Record: 03:11.000
Year: 1946/1947
Driver: Prince Bira/Bob Gerard
Car: ERA B
Speed: 125,604 Km/h
| Year | Official Name | Date | Winning Driver | Constructor | Laps | Time | Formula |
|---|---|---|---|---|---|---|---|
| 1947 | II Ulster Trophy | August 9 |  Bob Gerard |
ERA |
36 |
02:05:10.000 | GP |
| 1946 | I Ulster Trophy | August 10 |  Prince Bira |
ERA |
12 |
00:38:00.000 | GP |