| 23.6.1951 | 24 h Le Mans | 32 | 166 MM Touring Berlinetta LM | Simon / Haig | Luigi Chinetti | 15th |
| 23.6.1951 | 24 h Le Mans | 64 | 166 MM Touring Barchetta | Bouchard / Farnaud | René Bouchard | DNF |
| 15.7.1951 | Vila Real | 2 | 340 America | Casimiro de Oliveira | Casimiro de Oliveira | 3rd |
| 15.7.1951 | Vila Real | 12 | | Giannino Marzotto | | DNA |
| 15.7.1951 | Vila Real | 14 | 212 Export Vignale Spyder | Giovanni Bracco | | DNA |
| 15.7.1951 | Vila Real | 14 | 212 Export | Giovanni Bracco | | 1st |
| 15.7.1951 | Vila Real | 16 | 166 MM Touring Barchetta | Piero Carini | Scuderia Guastalla | raced |
| 15.7.1951 | Vila Real | 18 | 166 S Spyder Corsa Passo Corto | Conde de Monte Real | Scuderia Guastalla | 2nd |
| 15.7.1951 | Vila Real | 19 | 166 MM Touring Barchetta | "G. Searamiag" | | raced |
| 15.7.1951 | Coppa d'Oro delle Dolomiti | 96 | 212 MM Vignale Berlinetta | Franco Cornacchia | Scuderia Guastalla | DNF |
| 15.7.1951 | Coppa d'Oro delle Dolomiti | 100 | 212 Export Motto Spyder | Piero Scotti | | 5th |
| 15.7.1951 | Coppa d'Oro delle Dolomiti | 102 | 166 MM | Eugenio Castellotti | | DNF |
| 15.7.1951 | Coppa d'Oro delle Dolomiti | 105 | 166 MM Zagato Spyder Corsa | Antonio Stagnoli | | DNF |
| 15.7.1951 | Coppa d'Oro delle Dolomiti | 106 | 212 Export | Umberto Marzotto | | 11th |
| 15.7.1951 | Coppa d'Oro delle Dolomiti | 107 | 166 Export Campana Spyder Corsa | Luigi Fagioli | Alberico Cacciari | DNF |
| 15.7.1951 | Coppa d'Oro delle Dolomiti | 108 | 340 America Touring Barchetta | Vittorio Marzotto | Scuderia Marzotto | DNF |
| 21.7.1951 | SCCA National Thompson Handicap [Class 4] | 35 | 166 MM Touring Barchetta | Bill Spear | | 1st |
| 21.7.1951 | WJC Winfield [Racing F2] | 75 | | David Murray | | DNA |
| 22.7.1951 | SCCA National Thompson [Class 4] | 35 | 166 MM Touring Barchetta | Bill Spear | | 2nd |
| 22.7.1951 | Thompson [Class Winners] | 35 | 166 MM Touring Barchetta | Bill Spear | | 4th |
| 5.8.1951 | Hill Climb Schauinsland | 10 | 166 MM Touring Barchetta | Lucien Farnaud | | 7th |
| 5.8.1951 | Giro delle Calabria | 805 | 195 S | Mancini / Mancini | | 3rd |
| 5.8.1951 | Giro delle Calabria | 810 | 166 MM | Raffaelli / Micali | | raced |
| 5.8.1951 | Giro delle Calabria | 823 | 212 Export Touring Barchetta | Palmieri / Ballecchi | | 2nd |
| 5.8.1951 | Giro delle Calabria | | 340 America Touring Barchetta | Giovanni Bracco | | DNF |
| 5.8.1951 | Giro delle Calabria | | 212 Export Motto Spyder | Piero Scotti | | DNF |
| 5.8.1951 | Giro delle Calabria | | | Nicola Cherubini | | raced |
| 5.8.1951 | Giro delle Calabria | | 166 MM Zagato Spyder Corsa | Antonio Stagnoli | | DNF |
| 5.8.1951 | Giro delle Calabria | | 166 MM Touring Berlinetta LM | Yvonne Simon | | raced |
| 11.8.1951 | 6 h Pescara | | | Cornacchia | | DNF |
| 11.8.1951 | 6 h Pescara | | | Bianca Maria Piazza | | 12th |
| 12.8.1951 | Circuito di Senigallia [S+1.1] | 74 | 166 Export Campana Spyder Corsa | Alberico Cacciari | Alberico Cacciari | 7th |
| 12.8.1951 | Circuito di Senigallia [S+1.1] | 82 | 166 MM | Vittorugo Mallucci | | raced |
| 12.8.1951 | Circuito di Senigallia [S+1.1] | 83 | 340 America | Luigi Villoresi | | 1st |
| 12.8.1951 | Circuito di Senigallia [S+1.1] | 84 | 212 Export Touring Barchetta | Pietro Palmieri | | 4th |
| 12.8.1951 | Circuito di Senigallia [S+1.1] | 85 | 340 America Touring Barchetta | Giannino Marzotto | Scuderia Marzotto | DNF |
| 12.8.1951 | Circuito di Senigallia [S+1.1] | 88 | 212 Export Motto Spyder | Piero Scotti | | 2nd |
| 12.8.1951 | Circuito di Senigallia [S+1.1] | | 166 MM Touring Berlinetta LM | Yvonne Simon | | 6th |
| 12.8.1951 | Circuito di Senigallia [S+1.1] | | 166 MM Zagato Spyder Corsa | Antonio Stagnoli | Antonio Stagnoli | 3rd |
| 19.8.1951 | GP Pergusa | 28 | 166 S Spyder Corsa Passo Corto | Emilio Romano | | 3rd |
| 26.8.1951 | SCCA National Elkhart Lake | 2 | 340 America | Jim Kimberly | | 31st |
| 26.8.1951 | SCCA National Elkhart Lake | 119 | 166 MM Touring Barchetta | Steve Lansing | | 7th |
| 26.8.1951 | SCCA National Elkhart Lake | 132 | 340 America | Bill Spear | Bill Spear | 5th |
| 9.9.1951 | Grenzlandring [S2.0] | 1 | 166 S | Herman Roosdorp | | DNA |
| 9.9.1951 | Targa Florio | 4 | 166 MM Touring Barchetta | Bordonaro / Casales | Luigi Bordonaro | DNF |
| 9.9.1951 | Grenzlandring [S2.0] | 5 | 166 MM Touring Barchetta | Lucien Farnaud | | DNA |
| 9.9.1951 | Targa Florio | 12 | 166 S Allemano Spyder | Tramontana / Cardella | Domenico Tramontana | DNF |
| 9.9.1951 | Targa Florio | 14 | 212 Export Vignale Spyder | Cornacchia / Bracco | Scuderia Marzotto | 2nd |
| 9.9.1951 | Targa Florio | 20 | 166 MM Fontana Spider Corsa | Mancini / Cornacchia | Scuderia Marzotto | DNF |
| 9.9.1951 | Targa Florio | 34 | 212 Export Motto Spyder | Scotti / Cantini | Piero Scotti | DNF |
| 9.9.1951 | Targa Florio | 38 | 212 Export | Raffaelli / Mancini | Scuderia Marzotto | DNF |
| 9.9.1951 | Targa Florio | 54 | 340 America Touring Barchetta | Bracco / Raffaelli | Scuderia Marzotto | DNF |
| 9.9.1951 | Targa Florio | 58 | 212 Export | Restelli / Stagnoli | Scuderia Guastalla | DNF |
| 9.9.1951 | Targa Florio | 60 | 166 MM Zagato Spyder Corsa | Stagnoli / Pottino | Scuderia Guastalla | DNF |
| 12.9.1951 | Tour de France | 208 | 212 Export Vignale Coupe | Péron / Bertramnier | Jacques Péron | 2nd |
| 12.9.1951 | Tour de France | 214 | 166 Inter Touring Coupe | Renaldo / Rey-Mottet | Renaldo | 74th |
| 12.9.1951 | Tour de France | 220 | 212 Export | Checcacci / Schell | Elio Checcacci | 3rd |
| 12.9.1951 | Tour de France | 227 | 212 Export | "Pagnibon" / Barraquet | | 1st |
| 15.9.1951 | Tourist Trophy | 4 | | Bobbie Baird | | DNS |
| 15.9.1951 | Tourist Trophy | 5 | 340 America | Eddie Hall | E. R. Hall | DNF |
| 15.9.1951 | GP Watkins Glen | 17 | 212 Export | Charles Moran | Chas. Moran, Jr. | 14th |
| 15.9.1951 | Tourist Trophy | 27 | 212 Export | Bobbie Baird | | 6th |
| 15.9.1951 | Tourist Trophy | 31 | | Luigi Chinetti | | DNS |
| 15.9.1951 | GP Watkins Glen | 34 | 166 MM Touring Barchetta | Logan Hill | William Spear | 13th |
| 15.9.1951 | SCCA National Watkins Glen [Formula Libre] | 34 | 166 MM Touring Barchetta | Bill Spear | William Spear | NC |
| 15.9.1951 | GP Watkins Glen | 42 | 166 S Spyder Corsa | Jim Kimberly | James H. Kimberly | 10th |
| 15.9.1951 | SCCA National Watkins Glen [Formula Libre] | 42 | 166 S Spyder Corsa | Briggs Cunningham | Briggs S. Cunningham | 3rd |
| 15.9.1951 | GP Watkins Glen | 86 | 340 America | Bill Spear | William Spear | 3rd |
| 15.9.1951 | SCCA National Watkins Glen [Formula Libre] | 98 | 195 S | John Fitch | Briggs S. Cunningham | 2nd |
| 22.9.1951 | Vila do Conde | | 166 MM Touring Barchetta | | | raced |
| 29.9.1951 | Goodwood September [2nd Handicap Sports] | 76 | 166 MM Touring Barchetta | Bobbie Baird | | DNS |
| 29.9.1951 | Goodwood September [Sports] | 76 | 166 MM Touring Barchetta | Bobbie Baird | | 8th |
| 7.10.1951 | Coupes du Salon [GT+1.5] | 30 | | Péron | | DNA |
| 7.10.1951 | Coupes du Salon | 31 | 212 Export Vignale Coupe | Jacques Péron | Jacques Péron | 4th |
| 7.10.1951 | Coupes du Salon | 33 | 212 Export | Palmieri | | raced |
| 7.10.1951 | Coupes du Salon [GT+1.5] | 50 | | Palmieri | | DNA |
| 7.10.1951 | Coupes du Salon [GT+1.5] | 52 | 166 Inter Touring Coupe | Jean Renaldo | | DNA |
| 20.10.1951 | Allentown [Handicap +1.5] | 39 | 340 America | Bill Spear | Bill Spear | 4th |
| 20.10.1951 | Allentown [Handicap +1.5] | 41 | 212 | P. Mele | | raced |
| 20.10.1951 | Allentown [Handicap +1.5] | 42 | 166 S Spyder Corsa | Briggs Cunningham | | 3rd |
| 20.10.1951 | Allentown [Handicap +1.5] | 65 | 166 MM Touring Barchetta | John Fitch | | 1st |
| 28.10.1951 | Mt. Equinox Hillclimb | 2 | 166 S Spyder Corsa | Briggs Cunningham | | 6th |
| 28.10.1951 | Main Palm Springs [Sports] | | 340 America | Kimberly | Kimberly | DNA |
| 25.11.1951 | Carrera Panamericana | 9 | 212 Inter Vignale | Ascari / Villoresi | Centro Deportivo Italiano | 2nd |
| 25.11.1951 | Carrera Panamericana | 34 | 212 Inter Vignale | Taruffi / Chinetti | Centro Deportivo Italiano | 1st |
| 9.12.1951 | SCCA National Palm Beach | 1 | 340 America Touring Barchetta | John Fitch | Bill Spear | 1st |
| 9.12.1951 | SCCA National Palm Beach | 2 | 166 S Spyder Corsa | Briggs Cunningham | Briggs S. Cunningham | 3rd |
| 9.12.1951 | SCCA National Palm Beach | 11 | 166 MM Touring Barchetta | Bill Spear | Bill Spear | 4th |