Jack Brett Motorcycle Grand Prix results Motorcycle Grand Prix results

| Year_ | Class_ | Team | Points | Wins |
|---|---|---|---|---|
| 1949 | 350cc | Norton | 0 | 0 |
| 1949 | 500cc | Norton | 0 | 0 |
| 1950 | 350cc | Norton | 0 | 0 |
| 1950 | 500cc | Norton | 0 | 0 |
| 1951 | 350cc | Norton | 15 | 0 |
| 1951 | 500cc | Norton | 3 | 0 |
| 1952 | 350cc | AJS | 12 | 0 |
| 1952 | 500cc | AJS | 14 | 1 |
| 1953 | 350cc | Norton | 12 | 0 |
| 1953 | 500cc | Norton | 13 | 0 |
| 1954 | 350cc | Norton | 14 | 0 |
| 1954 | 500cc | Norton | 8 | 0 |
| 1955 | 350cc | Norton | 0 | 0 |
| 1955 | 500cc | Norton | 3 | 0 |
| 1956 | 350cc | Norton | 3 | 0 |
| 1956 | 500cc | Norton | 5 | 0 |
| 1957 | 350cc | Norton | 3 | 0 |
| 1957 | 500cc | Norton | 9 | 0 |
| 1958 | 350cc | Norton | 0 | 0 |
| 1959 | 500cc | Norton | 0 | 0 |