| 7.5.1955 | GP Napoli | 6 | MT4 1100 | Bruno Ricciardi | | 3rd |
| 7.5.1955 | GP Napoli | | MT4 1100 | Elio Lenza | | 4th |
| 8.5.1955 | 4 h Forez | 18 | | Michel Collange | | DNS |
| 8.5.1955 | 4 h Forez | 19 | MT4 1500 | Radix / Laroche | Guglielmo Carraroli | 4th |
| 8.5.1955 | 4 h Forez | 20 | MT4 1500 | Jacques Péron | | DNF |
| 8.5.1955 | 4 h Forez | 21 | | Nicolaus Descollanges | | DNS |
| 8.5.1955 | Circuito di Gorizia [S1.1] | 34 | MT4 1100 | Attilio Brandi | | 3rd |
| 8.5.1955 | Circuito di Gorizia [S1.1] | 40 | MT4 1100 | Gaetano Sani | | 2nd |
| 8.5.1955 | Circuito di Gorizia [S1.1] | | MT4 1100 | "Madero" | | DNF |
| 8.5.1955 | Hockenheim [S1.5] | | | Ludwig Fischer | | DNF |
| 8.5.1955 | Circuito di Gorizia [S1.1] | | MT4 1100 | Armando François | | DNF |
| 8.5.1955 | Coppa Lombardia | | MT4 1100 | Pietro Cagnana | | ?th |
| 8.5.1955 | Circuito di Gorizia [S1.1] | | MT4 1100 | Aurelio Lorenzetti | | 4th |
| 8.5.1955 | Coppa Lombardia | | MT4 1100 | Luigi Nobile | | ?th |
| 15.5.1955 | SCCA National Cumberland [FM+GM+HM] | 15 | MT4 | Ed Lunken | J. R. Johnston | DNA |
| 15.5.1955 | Preliminary Cumberland [Novice 2.0] | 15 | MT4 | Johnston | J. R. Johnston | 3rd |
| 15.5.1955 | GP Bari [S2.0] | 16 | 2000S | Louis Chiron | | DNF |
| 15.5.1955 | GP Bari [S2.0] | 24 | 2000S | Roberto Sgorbati | | DNF |
| 15.5.1955 | Bol d'Or | 45 | | Collange / Estager | | DNA |
| 15.5.1955 | SCCA National Cumberland [FM+GM+HM] | 78 | MT4 | Otto Linton | I. Otto Linton | 10th |
| 15.5.1955 | SCCA National Cumberland [FM+GM+HM] | 84 | MT4 | Henry Wessells | H. W. Wessells III | DNA |
| 15.5.1955 | SCCA National Cumberland [FM+GM+HM] | 88 | MT4 | Phil Stewart | P. Stewart | 2nd |
| 15.5.1955 | SCCA National Cumberland [FM+GM+HM] | 227 | | Jim Pauley | Jim Pauley | DNA |
| 21.5.1955 | Trofeo Sardo | 142 | MT4 1100 | Attilio Brandi | | 5th |
| 21.5.1955 | Trofeo Sardo | 152 | MT4 1100 | Adriano Tuzi | | ?th |
| 22.5.1955 | Circuit de Dieppe | 18 | MT4 1500 | Jacques Péron | | 3rd |
| 22.5.1955 | Circuit de Dieppe | | MT4 1500 | Jean Laroche | | 2nd |
| 29.5.1955 | Eifelrennen Nürburgring | 25 | MT4 1500 | Giulio Cabianca | Automobili O.S.C.A. | DNA |
| 29.5.1955 | Eifelrennen Nürburgring | 26 | MT4 1500 | Jacques Péron | Jacques Peron | 16th |
| 29.5.1955 | Eifelrennen Nürburgring | 27 | | Heinz Fischer | Heinz Fischer | DNA |
| 29.5.1955 | 12 h Hyères | 64 | 2000S | Chiron / Delpech | Louis Chiron | DNF |
| 29.5.1955 | 12 h Hyères | 66 | MT4 1500 | Descollanges / Nicol | Scuderia San Giorgio | DNF |
| 29.5.1955 | 12 h Hyères | 68 | MT4 1100 | Porre / Porre | Roger Porre | 7th |
| 30.5.1955 | Iowa [EM+FM+CP+DP+EP] | 66 | MT4 1500 | Phil Stewart | Phil Stewart | 5th |
| 30.5.1955 | Iowa [FM+GM+FM+FP+GP] | 66 | MT4 1500 | Phil Stewart | Phil Stewart | 3rd |
| 5.6.1955 | Santa Rosa [S+1.5] | 9 | MT4 1450 | Bill David | | 9th |
| 5.6.1955 | Santa Rosa [S1.5] | 9 | MT4 1450 | Bill David | | 1st |
| 5.6.1955 | Santa Rosa [S1.5] | 23 | MT4 1350 | Al Coppel | | 2nd |
| 5.6.1955 | GP Mugello | 44 | MT4 1100 | Adriano Tuzi | Maria Boccanera | 12th |
| 5.6.1955 | GP Mugello | 46 | MT4 1100 | Luigi Nobile | Domenico Nobile | 13th |
| 5.6.1955 | GP Mugello | 48 | MT4 1100 | Pietro Cagnana | Carlo Monzino | 24th |
| 5.6.1955 | GP Mugello | 66 | MT4 1100 | Giuseppe Rossi | Giuseppe Rossi | 9th |
| 5.6.1955 | GP Mugello | 72 | MT4 1100 | Attilio Brandi | Attilio Brandi | 7th |
| 5.6.1955 | GP Mugello | 86 | MT4 1500 | Giulio Cabianca | Giulio Cabianca | 2nd |
| 5.6.1955 | Santa Rosa [S1.5] | 117 | MT4 1350 | Chick Leson | | DNF |
| 5.6.1955 | Santa Rosa [S1.5] | 170 | MT4 | Jean Pierre Kunstle | I. W. Stephenson | 3rd |
| 5.6.1955 | Santa Rosa [S+1.5] | 170 | | Lou Brero | I. W. Stephenson | 7th |
| 5.6.1955 | Novice Santa Rosa [Modified 1.5] | 170 | MT4 | R. Madeira | I. W. Stephenson | 1st |
| 5.6.1955 | GP Mugello | | MT4 1100 | "Madero" | | DNS |
| 5.6.1955 | Circuit d'Orleans [2.0] | | MT4 1500 | Jacques Péron | | 3rd |
| 5.6.1955 | Circuit d'Orleans [2.0] | | MT4 | Duroc | | 4th |
| 12.6.1955 | 24 h Le Mans | 40 | MT4 1500 | Cabianca / Sgorbati | Edgar Fronteras | 11th |
| 12.6.1955 | 24 h Le Mans | 47 | MT4 | Péron / Bourillot | Jacques Peron | DNA |
| 12.6.1955 | 24 h Le Mans | | MT4 | | Osca | DNA |
| 12.6.1955 | 24 h Le Mans | | MT4 | | Osca | DNA |
| 12.6.1955 | 24 h Le Mans | | MT4 | | Osca | DNA |
| 19.6.1955 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 15 | MT4 1500 | Jim Johnston | James Johnston | ?th |
| 19.6.1955 | Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 15 | MT4 1500 | Jim Johnston | James Johnston | ?th |
| 19.6.1955 | GP Shell Imola | 20 | MT4 1500 | Roberto Sgorbati | Edgar Fronteras | DNF |
| 19.6.1955 | GP Shell Imola | 22 | MT4 1500 | Giulio Cabianca | Giulio Cabianca | 10th |
| 19.6.1955 | GP Tunisia | 30 | 2000S | Louis Chiron | Louis Chiron | 4th |
| 19.6.1955 | GP Tunisia | 34 | MT4 1500 | Roger Porre | Racing Sport | 8th |
| 19.6.1955 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 66 | MT4 1500 | Phil Stewart | Phil Stewart | ?th |
| 19.6.1955 | Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 166 | MT4 1500 | Phil Stewart | Phil Stewart | ?th |
| 19.6.1955 | GP Tunisia | | MT4 1500 | Jacques Péron | Guglielmo Carraroli | 7th |
| 25.6.1955 | Circuito do Porto [S1.5] | | MT4 1500 | Casimiro de Oliveira | | 4th |
| 26.6.1955 | GP Caserta [S1.1] | | MT4 1100 | "Madero" | | 6th |
| 26.6.1955 | GP Caserta [S1.1] | | MT4 1100 | Gaetano Sani | | DNF |
| 26.6.1955 | GP Caserta [S1.1] | | MT4 1100 | Giuseppe Rossi | Giuseppe Rossi | 1st |
| 26.6.1955 | GP Caserta [S1.1] | | MT4 1100 | Elio Lenza | | 5th |
| 26.6.1955 | GP Caserta [S1.1] | | MT4 1100 | Attilio Brandi | | 4th |
| 3.7.1955 | Milwaukee [FM+GM+HM+IM+FP+GP] | 7 | MT4 | Rees Makins | | DNA |
| 3.7.1955 | Milwaukee [FM+GM+HM+IM+FP+GP] | 66 | MT4 | Ted Boynton | | DNA |
| 3.7.1955 | Milwaukee [BM+CM+DM+EM+CP+DP+EP] | 177 | MT4 1100 | Frank Bott | | ?th |
| 3.7.1955 | Milwaukee [FM+GM+HM+IM+FP+GP] | 177 | MT4 1100 | Frank Bott | | 1st |
| 10.7.1955 | SCCA National Torrey Pines [S1.5] | 7 | MT4 1100 Special | Skip Swartley | Skip Swartley | 11th |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 85 | MT4 1100 | Giuseppe Rossi | Giuseppe Rossi | 10th |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 88 | MT4 1100 | "Nando" | | DNF |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 90 | MT4 1100 | Attilio Brandi | Attilio Brandi | 30th |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 134 | MT4 1500 | Roberto Nicole | | DNF |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 141 | MT4 1500 | Giulio Cabianca | Giulio Cabianca | 3rd |
| 10.7.1955 | SCCA National Torrey Pines [S1.5] | 188 | MT4 | I. W. Stephenson | I. W. Stephenson | DNA |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | 14 | MT4 1100 | Giuseppe Rossi | Giuseppe Rossi | 5th |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | | MT4 1100 | Bruno Ricciardi | | 3rd |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | | MT4 1100 | Adriano Tuzi | | 6th |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | | MT4 1100 | Angelo Sbordone | | raced |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | | MT4 1100 | Attilio Brandi | | 4th |
| 17.7.1955 | Circuito di Reggio Calabria [Handicap] | | MT4 1100 | Bruno Ricciardi | | 3rd |
| 23.7.1955 | Brynfan Tyddyn [EM+FM] | 103 | MT4 1350 | Otto Linton | | 1st |
| 31.7.1955 | SCCA National Seafair [FM+GM+HM+FIII] | 117 | MT4 1100 Special | Skip Swartley | Skip Swartley | 6th |
| 31.7.1955 | SCCA National Seafair [FM+GM+HM+FIII] | 180 | MT4 | I. W. Stephenson | J. W. Stephenson | DNA |
| 1.8.1955 | Brands Hatch International [S1.5] | 5 | | Michel Collange | M. Collange | DNA |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 43 | MT4 | Jim Pauley | | DNA |
| 13.8.1955 | Edenvale [S1.5] | 43 | MT4 | Jim Pauley | | 1st |
| 21.8.1955 | Buchanan Field [Modified 1.5] | 23 | MT4 1350 | Al Coppel | Alfred Coppel | DNA |
| 21.8.1955 | Novice Buchanan Field [Modifed 1.5] | 23 | MT4 1350 | George Rosenblatt | Al Coppel | 2nd |
| 21.8.1955 | Buchanan Field [Modified 1.5] | 55 | MT4 1300 | Sam Weiss | Sam Weiss | 1st |
| 21.8.1955 | Giro delle Calabria | 800 | MT4 1100 | Giuseppe Rossi | Giuseppe Rossi | 3rd |
| 21.8.1955 | Giro delle Calabria | | MT4 1100 | Bruno Venezian | | DNF |
| 21.8.1955 | Giro delle Calabria | | MT4 1500 | Giulio Cabianca | | DNF |