| 29.5.1955 | GP des Frontières | 4 | #0552M | Jacques Swaters | Equipe Nationale Belge | DNA |
| 29.5.1955 | Eifelrennen Nürburgring | 5 | #0548M | Willie Daetwyler | Automobili Ferrari | 18th |
| 29.5.1955 | 12 h Hyères | 6 | #0486M | Canonica / Munaron | | 1st |
| 29.5.1955 | Eifelrennen Nürburgring | 6 | #0554M | Masten Gregory | Automobili Ferrari | 3rd |
| 29.5.1955 | Eifelrennen Nürburgring | 7 | | Gunnar Carlsson | Tore Bjurström | 7th |
| 29.5.1955 | GP des Frontières | 8 | | Jean Estager | | 3rd |
| 29.5.1955 | Eifelrennen Nürburgring | 10 | #0486M | Jacques Jonneret | Ecurie 'La Meute' | DNA |
| 29.5.1955 | GP Tangier [2.0/+2.0] | | #0572M | José A. Nogueira Pinto | | 1st |
| 29.5.1955 | GP Tangier [2.0/+2.0] | | | Joaquim Felipe Nogueira | | 2nd |
| 30.5.1955 | GP Bougie | | #0520M | Louis Rosier | | 1st |
| 5.6.1955 | Santa Rosa [S+1.5] | 26 | #0428MD | Sterling Edwards | | DNF |
| 5.6.1955 | Santa Rosa [S+1.5] | 107 | #0492M | John von Neumann | John von Neumann | 1st |
| 5.6.1955 | GP Mugello | 122 | #0514M | Luigi Piotti | | DNS |
| 5.6.1955 | GP Mugello | 126 | #0530M | Luigi Bordonaro | | 20th |
| 5.6.1955 | GP Mugello | | | Umberto Maglioli | | 1st |
| 12.6.1955 | 24 h Le Mans | 12 | #0440MD | "Heldé" / Lucas | Heldé | DNF |
| 12.6.1955 | 24 h Le Mans | 14 | #0504M | "Sparken" / Gregory | Mike Sparken | DNF |
| 12.6.1955 | 24 h Le Mans | 68 | | Yves Giraud-Cabantous | Yves Giraud-Cabantous | DNA |
| 18.6.1955 | Preliminary Hansen Dam [Modified 3.0] | 16 | #0428MD | Sterling Edwards | Sterling Edwards | DNA |
| 18.6.1955 | Preliminary Hansen Dam [Modified 3.0] | 76 | #0502M | Ernie McAfee | Wm. Doheny | 1st |
| 19.6.1955 | Hansen Dam [S+1.5] | 16 | #0428MD | Sterling Edwards | Sterling Edwards | DNA |
| 19.6.1955 | GP Shell Imola | 58 | #0570MD | Umberto Maglioli | Scuderia Ferrari | 2nd |
| 19.6.1955 | Hansen Dam [S+1.5] | 76 | #0502M | Ernie McAfee | Wm. Doheny | 1st |
| 19.6.1955 | GP Tunisia | | #0530M | Luigi Bordonaro | Luigi Bordonaro | 2nd |
| 19.6.1955 | GP Tunisia | | #0514M | Luigi Piotti | Luigi Piotti | 1st |
| 26.6.1955 | GP Portugal | 10 | #0524M | Casimiro de Oliveira | Casimiro D' Oliveiro | DNF |
| 26.6.1955 | GP Portugal | 12 | #0572M | José A. Nogueira Pinto | José A. Nogueira Pinto | DNF |
| 26.6.1955 | GP Portugal | 16 | #0520M | Louis Rosier | Louis Rosier | 6th |
| 26.6.1955 | GP Portugal | 17 | #0526M | Jean Estager | Jean Estager | DNF |
| 26.6.1955 | GP Portugal | 18 | #0554M | Masten Gregory | | 2nd |
| 26.6.1955 | GP Portugal | 19 | #0500M | Piero Carini | Piero Carini | DNF |
| 26.6.1955 | GP Portugal | | | Lino Fayen | | DNF |
| 26.6.1955 | GP Portugal | | #0576M | Vasco Sameiro | | DNS |
| 26.6.1955 | GP Portugal | | #0518M | Johnny Claes | Ecurie Francorchamps | DNS |
| 26.6.1955 | GP Portugal | | #0552M | Jacques Swaters | Ecurie Francorchamps | DNS |
| 4.7.1955 | SCCA National Beverly [BM+CM+DM+EM+CP] | 3 | #0498M | Phil Hill | George Tilp | 1st |
| 4.7.1955 | Preliminary Beverly [BM+CM+DM+EM] | 3 | #0498M | Phil Hill | George Tilp | 1st |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 26 | #0428MD | Sterling Edwards | Sterling Edwards | DNA |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 138 | #0570MD | Eugenio Castellotti | Scuderia Ferrari | 2nd |
| 10.7.1955 | SCCA National Torrey Pines [S+1.5] | 211 | #0492M | von Neumann / Hill | John Von Neumann | 2nd |
| 24.7.1955 | 10 h Messina | 6 | #0570M | Trintignant / Castellotti | Scuderia Ferrari | 1st |
| 24.7.1955 | 10 h Messina | 10 | #0530M | Bordonaro / Piotti | | raced |
| 24.7.1955 | Circuito de Lisboa | 11 | #0554M | Masten Gregory | | 1st |
| 24.7.1955 | Circuito de Lisboa | 12 | #0548M | Willie Daetwyler | Willy-Peter Daetwyler | 4th |
| 24.7.1955 | Circuito de Lisboa | 14 | #0486M | Jacques Jonneret | Jacques Jonneret | DNF |
| 24.7.1955 | Circuito de Lisboa | 15 | | Francisco Godia-Sales | | 3rd |
| 24.7.1955 | Circuito de Lisboa | 16 | #0440MD | Jean Lucas | | DNF |
| 24.7.1955 | Circuito de Lisboa | 18 | #0572M | José A. Nogueira Pinto | José A. Nogueira Pinto | DNF |
| 24.7.1955 | 10 h Messina | | | Maglioli / Gendebien | | DNF |
| 31.7.1955 | SCCA National Seafair [BM+CM+DM+EM] | 3 | #0498M | Phil Hill | George E. Tilp | 2nd |
| 31.7.1955 | Preliminary Seafair [All Classes] | 3 | #0498M | Phil Hill | George E. Tilp | 1st |
| 6.8.1955 | Charterhall International [Sports] | 34 | #0520M | Louis Rosier | Louis Rosier | 2nd |
| 6.8.1955 | Charterhall International [Invitation Race] | 34 | #0520M | Louis Rosier | Louis Rosier | raced |
| 7.8.1955 | GP Sverige [Production/GT+2.0] | 21 | #0552M | Paul Frère | Equipe Nationale Belge | DNS |
| 7.8.1955 | GP Sverige [Production/GT+2.0] | 22 | #0470MD | Gunnar Carlsson | Tore Bjurström | DNF |
| 14.8.1955 | Kanonloppet [Sports] | 2 | #0470MD | Gunnar Carlsson | | 1st |
| 14.8.1955 | Snetterton International [S+1.5] | 102 | #0440MD | Jean Lucas | Ec. Bullfrog | raced |
| 20.8.1955 | 9 h Goodwood | 6 | #0496M | Hawthorn / de Portago | Marquis de Portago | DNF |
| 20.8.1955 | 9 h Goodwood | 7 | #0486M | Jonneret / Wharton | J. Jonnneret | DNF |
| 20.8.1955 | 9 h Goodwood | 8 | #0440MD | Schell / Lucas | H. Schell | DNF |
| 21.8.1955 | Buchanan Field [Modified +1.5] | 26 | #0428MD | Sterling Edwards | Sterling Edwards | 1st |
| 27.8.1955 | Oulton Park International | 28 | #0496M | Mike Hawthorn | Scuderia Ferrari | 2nd |
| 27.8.1955 | Oulton Park International | 30 | #0554M | Masten Gregory | M. Gregory | 4th |
| 27.8.1955 | Oulton Park International | 32 | #0440MD | Jean Lucas | J. Lucas | DNF |
| 27.8.1955 | Oulton Park International | 36 | #0470MD | Gunnar Carlsson | G. Carlsson | DNF |
| 27.8.1955 | Oulton Park International | 42 | | Nogueira Pinto | N. Pinto | DNA |
| 27.8.1955 | Oulton Park International | 44 | #0520M | Louis Rosier | Louis Rosier | DNF |
| 27.8.1955 | Oulton Park International | | #0518M | Johnny Claes | Ecurie Francorchamps | DNA |
| 27.8.1955 | Oulton Park International | | #0552M | Paul Frère | Ecurie Francorchamps | DNA |
| 3.9.1955 | Aintree International | 73 | #0440MD | Harry Schell | Scuderia Los Amigos | 4th |
| 3.9.1955 | Aintree International | 74 | #0496M | Alfonso de Portago | Marquis de Portago | DNF |
| 3.9.1955 | Preliminary Santa Barbara [Modified +1.5] | 76 | #0502M | Ernie McAfee | Wm. Doheny | 1st |
| 4.9.1955 | Santa Barbara [Modified +1.5] | 2 | #0492M | Phil Hill | John von Neumann | 2nd |
| 4.9.1955 | Skarpnäcksloppet [PS2.0/PS+2.0] | 22 | | Hans Tak | | raced |
| 4.9.1955 | Stockholmsloppet [S+2.0] | 36 | #0470MD | Gunnar Carlsson | | DNF |
| 4.9.1955 | Santa Barbara [Modified +1.5] | 76 | #0502M | Ernie McAfee | Wm. Doheny | 1st |
| 11.9.1955 | SCCA National Road America [BM+CM+DM] | 3 | #0498M | Phil Hill | George E. Tilp | 1st |
| 11.9.1955 | Vila do Conde | | #0572M | José A. Nogueira Pinto | | 1st |
| 17.9.1955 | GP Watkins Glen | 3 | | Luigi Chinetti | Luigi Chinetti | DNA |
| 17.9.1955 | GP Watkins Glen | 244 | | | Allen Guiberson | DNA |
| 18.9.1955 | Tourist Trophy | 6 | #0588M | Gendebien / Gregory | Scuderia Ferrari | DNS |
| 18.9.1955 | Tourist Trophy | 7 | #0518M | Swaters / Claes | Equipe Nationale Belge | 13th |
| 18.9.1955 | Tourist Trophy | 8 | #0440MD | Lucas / de Portago | Ecurie Bullfrog | DNS |
| 18.9.1955 | Tourist Trophy | | | Gérard Crombac | Gerard Crombac | DNA |
| 1.10.1955 | SCCA Regional Salinas [Modified +1.5] | 2 | #0492M | Phil Hill | John von Neumann | DNS |
| 1.10.1955 | Castle Combe International | 2 | #0520M | Louis Rosier | Louis Rosier | 2nd |
| 1.10.1955 | SCCA Regional Salinas [Modified +1.5] | 11 | #0582M | John von Neumann | | raced |
| 1.10.1955 | Castle Combe International | 19 | #0444M | Herbert Mackay-Fraser | H. McKay Fraser | 4th |
| 1.10.1955 | SCCA Regional Salinas [Modified +1.5] | 26 | #0428MD | Sterling Edwards | | 3rd |
| 16.10.1955 | SCCA National Hagerstown [BM+CM+DM+EM] | 3 | #0492M | Phil Hill | Phil Hill | 2nd |
| 16.10.1955 | SCCA National Hagerstown [BM+CM+DM+EM] | 6 | | Ed Lunken | Edmond P. Lunken | DNF |
| 16.10.1955 | Targa Florio | 100 | #0514M | Piotti / Cornacchia | | DNF |
| 16.10.1955 | Targa Florio | 108 | #0530M | Bordonaro / Anselmi | | DNS |
| 16.10.1955 | Targa Florio | 110 | #0538M | Shelby / Munaron | Scuderia Ferrari | DNF |
| 16.10.1955 | Targa Florio | 114 | | Scaminaci / di Salvo | | DNS |
| 16.10.1955 | Targa Florio | 120 | | Maglioli / Sighinolfi | Scuderia Ferrari | DNF |
| 23.10.1955 | Torrey Pines [S+1.5] | 76 | #0502M | Ernie McAfee | Wm. Doheny | DNA |
| 30.10.1955 | SCCA National Sacramento [BM+CM+DM+EM] | 2 | #0582M | Phil Hill | John von Neumann | 1st |
| 6.11.1955 | GP Venezuela | 10 | #0496M | Alfonso de Portago | Marquis de Portago | 2nd |
| 6.11.1955 | GP Venezuela | 16 | #0440MD | Emmanuel de Graffenried | Emmanuel De Graffenried | 3rd |