# Temporada 1951 del Campeonato del Mundo de Motociclismo

La temporada de 1951 del Campeonato del Mundo de Motociclismo fue la tercera edición del Campeonato Mundial de Motociclismo.
La temporada consistió en ocho pruebas en cinco cilindradas: 500cc, 350cc, 250cc, 125cc y Sidecars. Comenzó el 8 de abril con el Gran Premio de España y finalizó el 9 de septiembre con el Gran Premio de las Naciones.

## Calendario y resultados

| Ronda | Fecha | Gran Premio | Circuito | Ganador 125cc | Ganador 250cc | Ganador 350cc | Ganador 500cc |
| 1 | 5 de abril | Gran Premio de España | Circuito de Montjuïch | Guido Leoni | | Tommy Wood | Umberto Masetti |
| 2 | 27 de mayo | Gran Premio de Suiza | Bremgarten | | Dario Ambrosini | Leslie Graham | Fergus Anderson |
| 3 | 8 de junio | TT Isla de Man | Snaefell Mountain | Cromie McCandless | Tommy Wood | Geoff Duke | Geoff Duke |
| 4 | 1 de julio | Gran Premio de Bélgica | Spa-Francorchamps | | | Geoff Duke | Geoff Duke |
| 5 | 7 de julio | Gran Premio de los Países Bajos | Assen | Guido Leoni | | Bill Doran | Geoff Duke |
| 6 | 14 de julio | Gran Premio de Francia | Circuito de Albi | | Bruno Ruffo | Geoff Duke | Alfredo Milani |
| 7 | 16 de agosto | Gran Premio del Úlster | Dundrod Circuit | Cromie McCandless | Bruno Ruffo | Geoff Duke | Geoff Duke |
| 8 | 9 de septiembre | Gran Premio de las Naciones | Monza | Carlo Ubbiali | Enrico Lorenzetti | Geoff Duke | Alfredo Milani |

## Resultados
### 500cc

| Pos. | Piloto | Moto | ESP | SWI | MAN | BEL | HOL | FRA | ULS | NAC | Pts. |
| 1 | Geoff Duke | Norton | | Ret | 1 | 1 | 1 | 5 | 1 | 4 | 35 |
| 2 | Alfredo Milani | Gilera | Ret | Ret | | 2 | 2 | 1 | 4 | 1 | 31 |
| 3 | Umberto Masetti | Gilera | 1 | | | 9 | Ret | 4 | 3 | 2 | 21 |
| 4 | Bill Doran | AJS | | | 2 | Ret | Ret | 2 | 6 | 6 | 14 |
| 5 | Nello Pagani | Gilera | Ret | Ret | | 5 | 10 | 3 | 8 | 3 | 10 |
| 6 | Reg Armstrong | AJS | | 2 | Ret | 4 | | Ret | Ret | | 9 |
| 7 | Fergus Anderson | Moto Guzzi | Ret | 1 | | Ret | Ret | 7 | | | 8 |
| 8 | Enrico Lorenzetti | Norton / Moto Guzzi | Ret | 3 | | 8 | 3 | 9 | | Ret | 8 |
| 9 | Tommy Wood | Norton | 2 | 11 | 14 | | | 16 | | | 6 |
| 10 | Ken Kavanagh | Norton | | | Ret | | | | 2 | Ret | 6 |
| 11 | Johnny Lockett | Norton | | | Ret | 6 | 4 | 10 | 5 | 11 | 6 |
| 12 | Carlo Bandirola | MV Agusta | 5 | 4 | | Ret | Ret | | | 9 | 5 |
| 13 | Sante Geminiani | Moto Guzzi | Ret | Ret | | 3 | Ret | 13 | | | 4 |
| 14 | Arciso Artesiani | MV Agusta | 3 | Ret | | | Ret | | | Ret | 4 |
| = | Cromie McCandless | Norton | | | 3 | | | | | | 4 |
| 16 | Tommy McEwans | Norton | | | 4 | | | | | | 3 |
| = | Roger Montané | Norton | 4 | | | | | | | | 3 |
| 18 | Jack Brett | Norton | | | | 7 | 5 | 6 | Ret | 8 | 3 |
| 19 | Bruno Ruffo | Moto Guzzi | | | | | Ret | | | 5 | 2 |
| 20 | Manliff Barrington | Norton | | | 5 | | | | | | 2 |
| = | Benoit Musy | Moto Guzzi | | 5 | | | | | | | 2 |
| 22 | Len Perry | Norton | | | 9 | 12 | 6 | Ret | | | 1 |
| 23 | Willy Lips | Norton | | 6 | | | | | | | 1 |
| = | Ashley Len Parry | Norton | | | 6 | | | | | | 1 |
| = | Ernesto Vidal | Gilera | 6 | | | | | | | | 1 |
| 26 | Arthur Wheeler | Norton | | | Ret | | 7 | 14 | 11 | Ret | 0 |
| 27 | Hans Baltisberger | Norton | | 7 | | | | | | | 0 |
| = | Eric Briggs | Norton | | | 7 | | | | | | 0 |
| = | Louis Carter | Norton | | | | | | | 7 | | 0 |
| = | Libero Liberati | Gilera | | | | | | | | 7 | 0 |
| 31 | Albert Moule | Norton | | | 8 | | | | 9 | | 0 |
| 32 | Bill Petch | AJS/ Norton | Ret | | | | Ret | 8 | Ret | 15 | 0 |
| 33 | Lous van Riswijk | Triumph | | | | Ret | 8 | | | | 0 |
| 34 | Massimo Forster | Gilera | | 8 | | | | | | | 0 |
| 35 | Väinö Hollming | Norton / Moto Guzzi | | 9 | | Ret | | | | | 0 |
| 36 | Cees Fokke-Bosch | Norton | | | | | 9 | | | | 0 |
| 37 | Rod Coleman | Norton / AJS | | | Ret | 10 | | 11 | Ret | Ret | 0 |
| 38 | Sidney Mason | Norton | | 10 | | Ret | | | | | 0 |
| 39 | Ken Armstrong | Norton | | | | | | | | 10 | 0 |
| = | Phil Carter | Norton | | | | | | | 10 | | 0 |
| = | Les Dear | Norton | | | 10 | | | | | | 0 |
| 42 | Ray Amm | Norton | | | 28 | 11 | 11 | 12 | | 12 | 0 |
| 43 | Guy Newman | Norton | | | 11 | | | | | | 0 |
| 44 | Jack Bailey | Norton | | | Ret | | | | 12 | | 0 |
| = | Roy Evans | Norton / AJS | | | 12 | | | | Ret | | 0 |
| 46 | Alexandre Mayer | Norton | | 12 | | | | | | | 0 |
| 47 | Harold Grindley | Norton | | | Ret | | | | 13 | | 0 |
| 48 | Dante Bianchi | Moto Guzzi | | | | | | | | 13 | 0 |
| = | Dennis Lashmar | Norton | | | 13 | | | | | | 0 |
| 50 | Maurice Acheson | AJS | | | | | | | 14 | | 0 |
| = | Giuseppe Colnago | Gilera | | | | | | | | 14 | 0 |
| = | Auguste Goffin | Norton | | | | 14 | | | | | 0 |
| 53 | Bill Hall | Velocette | | | Ret | | | | 15 | | 0 |
| 54 | Jean Behra | Moto Guzzi | | | | | | 15 | | | 0 |
| = | León Martin | Gilera | | | | 15 | | | | | 0 |
| = | Roy Walker | Velocette | | | 15 | | | | | | 0 |
| 57 | Giulie Galbiati | Moto Guzzi | Ret | | | 17 | | Ret | | 16 | 0 |
| 58 | Felice Benasedo | Moto Guzzi | Ret | | 31 | 16 | Ret | | | Ret | 0 |
| 59 | Robert Ferguson | AJS | | | | | | | 16 | | 0 |
| = | Sid Franklen | AJS | | | 16 | | | | | | 0 |
| 61 | Ernie Barrett | AJS | | | Ret | | | 17 | | | 0 |
| 62 | Syl Anderton | Norton | | | 17 | | | | | | 0 |
| = | Lodovico Facchinelli | Gilera | | | | | | | | 17 | 0 |
| = | Jack Harding | AJS | | | | | | | 17 | | 0 |
| 65 | Georges Houel | Gilera | Ret | | | | | 18 | | | 0 |
| 66 | Charlie Gray | AJS | | | 18 | | | | | | 0 |
| = | George Brockerton | Bitza | | | | | | | 18 | | 0 |
| = | Jaak Delsing | Triumph | | | | 18 | | | | | 0 |
| 69 | Leo Starr | AJS | | | 27 | | | | 19 | | 0 |
| 70 | Ernie Thomas | Velocette / Norton | | Ret | | 19 | | | | Ret | 0 |
| 71 | George Paterson | AJS | | | 19 | | | | | | 0 |
| 72 | Sven Sørensen | Norton | | | 20 | | | | | | 0 |
| = | Albert Vertriest | Triumph | | | | 20 | | | | | 0 |
| 74 | Evert Carlsson | Norton | | | | 21 | | | | | 0 |
| = | Ronald Pike | BSA | | | 21 | | | | | | 0 |
| 76 | Ray Petty | Norton | | | 22 | | | | | | 0 |
| 77 | Arnold Jones | Norton | | | 23 | | | | | | 0 |
| 78 | Achie Fenn | Norton | | | 24 | | | | | | 0 |
| 79 | Jim Kentish | AJS | | | 25 | | | | | | 0 |
| 80 | Humphrey Ranson | AJS / Norton | | | 26 | | | | | Ret | 0 |
| 81 | Eddie Stidolph | Norton | | | 29 | | | | | | 0 |
| 82 | Max Klein | AJS | | | 30 | | | | | | 0 |
| 83 | Leslie Harris | Norton | | | 32 | | | | | Ret | 0 |
| 84 | Ernie Braine | Norton | | | 33 | | | | | | 0 |
| 85 | John Fisher | Velocette | | | 34 | | | | | | 0 |
| 86 | Joe Chapman | Rudge-Whitworth | | | 35 | | | | | | 0 |
| 87 | Bill Maddrick | Velocette | | | 36 | | | | | | 0 |
| 88 | J. Gunn | Norton | | | 37 | | | | | | 0 |
| 89 | Bob McDonald | AJS | | | 38 | | | | | | 0 |
| 90 | Bill Beevers | AJS / Norton | Ret | | 39 | | | | | | 0 |
| – | Leslie Graham | MV Agusta / Norton | Ret | Ret | Ret | Ret | Ret | Ret | | Ret | 0 |
| – | Bruno Bertacchini | MV Agusta | Ret | Ret | | | Ret | | | Ret | 0 |
| – | Bob Matthews | Norton | Ret | Ret | | Ret | | | | Ret | 0 |
| – | Eric Oliver | Norton | Ret | | | Ret | | Ret | | Ret | 0 |
| – | Mick Featherstone | AJS | | | Ret | Ret | | | | | 0 |
| – | Charlie Salt | BSA / Velocette | | | Ret | | | | Ret | | 0 |
| – | Edouard Texidor | Norton | | | | Ret | | | | Ret | 0 |
| – | Javier de Ortueta | Norton | DNS | | Ret | | | | | | 0 |
| – | Fernando Aranda | Moto Guzzi | Ret | | | | | | | | 0 |
| – | Raymond Becquevort | AJS | Ret | | | | | | | | 0 |
| – | Gaetano Biondelli | Gilera | | | Ret | | | | | | 0 |
| – | Charlie Brett | Norton | | | Ret | | | | | | 0 |
| – | Charlie Bruguiere | AJS | | | Ret | | | | | | 0 |
| – | Florian Camathias | BMW | | Ret | | | | | | | 0 |
| – | Bernard Carter | Triumph | | | Ret | | | | | | 0 |
| – | Phil Carter | Norton | | | Ret | | | | | | 0 |
| – | Jacques Collot | Norton | | | | | | Ret | | | 0 |
| – | Eugéne Cordang | Triumph | | | | Ret | | | | | 0 |
| – | Georges Cordey | Norton | | Ret | | | | | | | 0 |
| – | Firmin Dauwe | Norton | | | | Ret | | | | | 0 |
| – | { Julien Deronne | Norton | Ret | | | | | | | | 0 |
| – | Jacques Drion | Norton | | | | | | | | Ret | 0 |
| – | Roger Ergé | Norton | | | | Ret | | | | | 0 |
| – | Lennart Fenning | Norton | | | Ret | | | | | | 0 |
| – | Tito Forconi | Gilera | | | | | | | | Ret | 0 |
| – | Frank Fry | Norton | | | Ret | | | | | | 0 |
| – | Werner Gerber | Norton | Ret | | | | | | | | 0 |
| – | Francesco Guglielminetti | Gilera | | | | | | | | Ret | 0 |
| – | Eric Hardy | Norton | | | Ret | | | | | | 0 |
| – | Phil Heath | Vincent | | | | | Ret | | | | 0 |
| – | Johnny Hodgkin | Vincent | | | Ret | | | | | | 0 |
| – | Chris Horn | Norton | | | Ret | | | | | | 0 |
| – | Sid Lawton | AJS | | | Ret | | | | | | 0 |
| – | George Leigh | Norton | | | Ret | | | | | | 0 |
| – | Guido Leoni | Moto Guzzi | Ret | | | | | | | | 0 |
| – | Harry Lindsay | Norton | | | Ret | | | | | | 0 |
| – | Maurice Lockwood | AJS | | | Ret | | | | | | 0 |
| – | Tony McAlpine | Gilera | | | Ret | | | | | | 0 |
| – | Reg McDonald | Velocette | | | Ret | | | | | | 0 |
| – | Stan Miller | Norton | | | Ret | | | | | | 0 |
| – | Georges Monneret | Norton | | | | | | Ret | | | 0 |
| – | George Morgan | Velocette | | | Ret | | | | | | 0 |
| – | Ken Mudford | AJS | | | Ret | | | | | | 0 |
| – | Alan Mullee | Norton | | | Ret | | | | | | 0 |
| – | Bill Mundy | Norton | | | Ret | | | | | | 0 |
| – | Arthur Pollitt | Norton | | | Ret | | | | | | 0 |
| – | Brian Purslow | BSA | | | | | | | Ret | | 0 |
| – | Jacques Raffeld | AJS | Ret | | | | | | | | 0 |
| – | Michael Roche | Triumph | | | | | | | Ret | | 0 |
| – | { Elio Scopigno | Moto Guzzi | | Ret | | | | | | | 0 |
| – | Oliver Scott | Norton | | | Ret | | | | | | 0 |
| – | Ralf Seymour | Velocette | | | Ret | | | | | | 0 |
| – | Cyril Stevens | Triumph | | | Ret | | | | | | 0 |
| – | Heinrich Stamm | Gilera | Ret | | | | | | | | 0 |
| – | Jack Varlow | AJS | | | Ret | | | | | | 0 |
| – | Ernest Walker | Norton | | | Ret | | | | | | 0 |
| – | Leonard Williams | Velocette | | | Ret | | | | | | 0 |
| Pos | Piloto | Moto | ESP | SWI | MAN | BEL | HOL | GER | ULS | NAC | Pts |
| Fuente: ||||||||||||

### 350cc

| Pos | Piloto | Moto | Pts. |
| 1 | Geoff Duke | Norton | 40 |
| 2 | Bill Doran | AJS | 19 |
| 3 | John Lockett | Norton | 19 |
| 4 | Ken Kavanagh | Norton | 16 |
| 5 | Jack Brett | Norton | 15 |
| 6 | Leslie Graham | Velocette | 14 |
| 7 | Reg Armstrong | AJS | 11 |
| 8 | Bill Petch | AJS | 10 |
| 9 | Cecil Sandford | Velocette | 9 |
| 10 | Tommy Wood | Velocette | 8 |
| 11 | Bill Lomas | Velocette | 6 |
| 12 | Rod Coleman | AJS | 5 |
| 13 | Mick Featherstone | AJS | 4 |
| 14 | Fernando Aranda | Velocette | 3 |
| = | Paul Fuhrer | Velocette | 3 |
| 16 | Sid Mason | Velocette | 2 |
| = | Jack Raffeld | Velocette | 2 |
| = | Simon Sandys-Winsch | Velocette | 2 |
| 19 | Johnny Grace | Norton | 1 |
| = | Bob Matthews | Velocette | 1 |
| = | Bob Foster | Velocette | 1 |
| = | Leonhardt Faßl | AJS | 1 |
| Fuente: ||||