| Born | (1911-07-25)July 25, 1911 Brooklyn, New York |
|---|---|
| Died | August 1, 1998(1998-08-01) (aged 87) Lansdale, Pennsylvania |
| Formula One World Championship career | |
| Nationality |  American |
| Active years | 1953–1956 |
| Teams | Kurtis Kraft, Schroeder |
| Entries | 4 (1 start) |
| Championships | 0 |
| Wins | 0 |
| Podiums | 0 |
| Career points | 0 |
| Pole positions | 0 |
| Fastest laps | 0 |
| First entry | 1953 Indianapolis 500 |
| Last entry | 1956 Indianapolis 500 |
Len Duncan (July 25, 1911 Brooklyn, New York – August 1, 1998 Lansdale, Pennsylvania) was an American race car driver. Duncan raced midget cars in seven decades from 1920s until the 1980s. During World War II, received the honor of being assigned as President Harry S. Truman's driver during one of his visits to England.[1] Mario Andretti credits Duncan with having a great influence on his professional life.[1] Andretti raced against Duncan in the American Racing Drivers Club (ARDC) series in 1963.
Duncan began racing in 1928. Duncan was the AAA Eastern Midget Champion. Duncan won eight American Racing Drivers Club (ARDC) championships during the thirteen years between 1955 and 1967.[1]
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(key)
| Year | Entrant | Chassis | Engine | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | WDC | Points |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1953 | Caccia Motors | Schroeder | Offenhauser L4 | ARG | 500 DNQ |
NED | BEL | FRA | GBR | GER | SUI | ITA | NC | 0 |
| 1954 | Ray Brady | Schroeder | Offenhauser L4 | ARG | 500 31 * |
BEL | FRA | GBR | GER | SUI | ITA | ESP | NC | 0 |
| 1955 | Ray Brady | Kurtis Kraft 4000 | Offenhauser L4 | ARG | MON | 500 DNQ |
BEL | NED | GBR | ITA | NC | 0 | ||
| 1956 | Ray Brady | Kurtis Kraft 4000 | Offenhauser L4 | ARG | MON | 500 DNQ |
BEL | FRA | GBR | GER | ITA | NC | 0 |
