Len Duncan was a American Formula 1 driver who competed 1954. across 1 races, taking 0 wins, 0 podiums and 0 pole positions for Schroeder.
| Year | Team | Pos | Points | Wins | Races | Best |
|---|---|---|---|---|---|---|
| 1954 | Schroeder | P95 | 0 | 0 | 1 | - |
| Year | Race | Team | Grid | Finish | Pts | Status |
|---|---|---|---|---|---|---|
| 1954 | Indianapolis 500 | Schroeder | 26 | R | 0 | Brakes |