Ignore non-championship races
| Full Name | Reginald Harold Haslam Parnell |
| Date of Birth | Sunday 2 July 1911 |
| Date of Death | Tuesday 7 January 1964 |
| Age of Death | 52 years, 6 months, 5 days |
| Born | Derby England Great Britain | |
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| Active Years | 1946 - 1952, 1954 - 1956 |
| Races Contested | 81 |
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| Average Classification | Median: 2, Mean: 3.41 (Standard deviation: 3.00) |
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| Average Qualifying Position | Median: 7, Mean: 6.95 (Standard deviation: 4.48) |
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| Fastest Laps | 14 |
| Average Fastest Lap Position | Median: 1, Mean: 1.00 (Standard deviation: 0.00) |
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| Races Led | 0 |
| Debut | 1946 Gransden Lodge Trophy |
| Maiden Win | 1946 Gransden Lodge Trophy |
| Last Race | 1956 British GP Support Race |
| Drivers' Championships |
| 1950 | | - | | 9th | | (4 points) |
| 1951 | | - | | 10th | | (5 points) |
| 1952 | | - | | Not Classified |
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| 1954 | | - | | Not Classified |
| 1955 | | - | | Not Classified |
| 1956 | | - | | Not Classified |
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| Total Points Scored | 9 |
| Records Held Today | None |
| Records Held At Retirement | None |
| Records Ever Broken | 1. Most Drivers' Championship Points Scores (1) – set at 1950 British GP, 2. Most Podium Finishes (1) – set at 1950 British GP, 3. Most 3rd Place Finishes (1) – set at 1950 British GP, 4. Highest Drivers' Championship Points Score Ratio (100.00%) – set at 1950 British GP, 5. Highest 3rd Place Finish Ratio (100.00%) – set at 1950 British GP, 6. Most Drivers' Championship Points Scores in a Season (1) – set at 1950 British GP, 7. Most 3rd Place Finishes in a Season (1) – set at 1950 British GP, 8. Most Race Entries (1) – set at 1950 British GP, 9. Most 4th Place Qualifications (1) – set at 1950 British GP, 10. Most 4th Place Qualifications in a Season (1) – set at 1950 British GP, 11. Most Podium Finishes (1) – set at 1950 British Empire Trophy, 12. Most Drivers' Championship Points Scores (1) – set at 1950 British Empire Trophy, 13. Most 3rd Place Finishes (1) – set at 1950 British Empire Trophy, 14. Highest Drivers' Championship Points Score Ratio (100.00%) – set at 1950 British Empire Trophy, 15. Highest 3rd Place Finish Ratio (100.00%) – set at 1950 British Empire Trophy, 16. Most Drivers' Championship Points Scores in a Season (1) – set at 1950 British Empire Trophy, 17. Most 3rd Place Finishes in a Season (1) – set at 1950 British Empire Trophy, 18. Most Race Entries (1) – set at 1950 British Empire Trophy, 19. Most 4th Place Qualifications (1) – set at 1950 British Empire Trophy, 20. Most 4th Place Qualifications in a Season (1) – set at 1950 British Empire Trophy |
| Son | Tim Parnell |
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| Team Mate | Races | Years |
| Juan Manuel Fangio | 1 | 1950 | | Nino Farina | 1 | 1950 | | Luigi Fagioli | 1 | 1950 | | David Hampshire | 1 | 1950 | | Peter Walker | 1 | 1951 | | Ken Richardson | 1 | 1951 | | Hans Stuck | 1 | 1951 | | Jack Fairman | 2 | 1955 |
| Team |
Races | Years |
| Alfa Romeo | 1 | 1950 | | Scuderia Ambrosiana | 13 | 1950, 1954 - 1955 | | Vanwall | 1 | 1951 | | BRM | 2 | 1951 | | Archie Bryde | 1 | 1952 | | Reg Parnell | 1 | 1954 | | Connaught Engineering | 2 | 1955 | | R.R.C. Walker Racing Team | 3 | 1956 | | T. Sopwith | 1 | 1956 |
| Car Manufacturer | Races | Years |
| Maserati | 43 | 1946 - 1951 | | ERA | 9 | 1946 - 1948, 1954 | | Alfa Romeo | 1 | 1950 | | BRM | 4 | 1950 - 1951 | | Ferrari | 16 | 1951, 1954 - 1955 | | HWM | 1 | 1951 | | Cooper | 4 | 1952, 1956 | | Connaught | 5 | 1955 - 1956 |
| Engine Manufacturer | Races | Years |
| Maserati | 43 | 1946 - 1951 | | ERA | 8 | 1946 - 1948 | | Alfa Romeo | 1 | 1950 | | BRM | 4 | 1950 - 1951 | | Ferrari | 16 | 1951, 1954 - 1955 | | Alta | 6 | 1951, 1955 - 1956 | | Bristol | 4 | 1952, 1954 | | Lea-Francis | 1 | 1956 |
| Tyre Manufacturer | Races | Years |
| Pirelli | 1 | 1950 |
| Lubricant Manufacturer | Races | Years |
| Shell | 1 | 1950 |
| Entrant | Races | Years |
| Alfa Romeo SpA | 1 | 1950 | | Scuderia Ambrosiana | 13 | 1950, 1954 - 1955 | | G.A. Vandervell | 1 | 1951 | | BRM Ltd | 2 | 1951 | | Archie Bryde | 1 | 1952 | | R.H.H. Parnell | 1 | 1954 | | Connaught Engineering | 2 | 1955 | | R.R.C. Walker Racing Team | 3 | 1956 | | T. Sopwith | 1 | 1956 |
| Chassis Designer | Races | Years |
| Ernesto Maserati | 13 | 1946 - 1948 | | Reid Railton | 8 | 1946 - 1948 | | Ferdinand Porsche | 1 | 1946 | | Gioacchino Colombo | 1 | 1950 | | Alberto Massimino | 1 | 1950 | | Aurelio Lampredi | 16 | 1951, 1954 - 1955 | | Peter Berthon | 2 | 1951 | | Owen Maddock | 3 | 1952 | | Rodney Clarke | 5 | 1955 - 1956 | | Mike Oliver | 5 | 1955 - 1956 |
| Car Model | Races | Years |
| Maserati 4CL | 13 | 1946 - 1948 | | ERA C | 1 | 1946 | | ERA A | 3 | 1947 | | ERA E | 4 | 1947 - 1948 | | Maserati 4CLT | 4 | 1947 - 1949 | | Maserati 4CLT/48 | 23 | 1948 - 1951 | | Maserati | 2 | 1949 | | Alfa Romeo 158 | 1 | 1950 | | Maserati 4CLT-48 | 1 | 1950 | | BRM 15 | 1 | 1950 | | BRM P15 MkI | 1 | 1950 | | Ferrari 375 | 3 | 1951 | | Ferrari 375 Thinwall Special | 1 | 1951 | | BRM P15 | 2 | 1951 | | HWM | 1 | 1951 | | Cooper T20 | 3 | 1952 | | Ferrari 500 | 12 | 1954 - 1955 | | ERA | 1 | 1954 | | Connaught B | 5 | 1955 - 1956 | | Cooper T39 | 1 | 1956 |
| Car Number | Races | Years |
| Car 36 | 2 | 1946 - 1947 | | Car 20 | 1 | 1946 | | Car 4 | 2 | 1946, 1950 | | Car 6 | 4 | 1946 - 1947, 1951 | | Car 42 | 1 | 1946 | | Car 34 | 4 | 1946 - 1947, 1950 - 1951 | | Car 8 | 3 | 1946, 1952, 1956 | | Car 11 | 2 | 1947, 1955 | | Car 10 | 3 | 1947, 1951 | | Car 7 | 2 | 1947, 1956 | | Car 16 | 1 | 1947 | | Car 37 | 1 | 1947 | | Car 22 | 2 | 1947, 1950 | | Car 2 | 4 | 1947, 1950, 1954 - 1955 | | Car 28 | 1 | 1947 | | Car 12 | 2 | 1949, 1954 | | Car 32 | 1 | 1950 | | Car 5 | 5 | 1950, 1954 | | Car 26 | 3 | 1950 - 1951, 1954 | | Car 81 | 1 | 1950 | | Car 25 | 2 | 1950, 1955 | | Car 1 | 2 | 1950, 1954 | | Car 21 | 2 | 1951, 1954 | | Car 35 | 1 | 1951 | | Car 17 | 3 | 1951, 1954, 1956 | | Car 30 | 1 | 1951 | | Car 3 | 2 | 1951, 1954 | | Car 14 | 1 | 1952 | | Car 18 | 1 | 1952 | | Car 44 | 1 | 1954 | | Car 9 | 1 | 1956 |
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