Toulo de Graffenried was a Swiss Formula 1 driver who competed between 1950 and 1956. across 23 races, taking 0 wins, 0 podiums and 0 pole positions for Maserati, Alfa Romeo.
| Year | Team | Pos | Points | Wins | Races | Best |
|---|---|---|---|---|---|---|
| 1956 | Maserati | P34 | 0 | 0 | 1 | P7 |
| 1954 | Maserati | P36 | 0 | 0 | 2 | P8 |
| 1953 | Maserati | P8 | 7 | 0 | 7 | P4 |
| 1952 | Maserati | P24 | 0 | 0 | 4 | P6 |
| 1951 | Alfa Romeo | P16 | 2 | 0 | 5 | P5 |
| 1950 | Maserati | P23 | 0 | 0 | 4 | P6 |