| 5.6.1955 | GP Mugello | 44 | #1130 | Adriano Tuzi | Maria Boccanera | 12th |
| 5.6.1955 | GP Mugello | 48 | #1144 | Pietro Cagnana | Carlo Monzino | 24th |
| 5.6.1955 | GP Mugello | 66 | #1156 | Giuseppe Rossi | Giuseppe Rossi | 9th |
| 5.6.1955 | GP Mugello | 72 | #1143 | Attilio Brandi | Attilio Brandi | 7th |
| 5.6.1955 | GP Mugello | 86 | #1151 | Giulio Cabianca | Giulio Cabianca | 2nd |
| 5.6.1955 | GP Mugello | | #1117 | "Madero" | | DNS |
| 12.6.1955 | 24 h Le Mans | 40 | #1169 | Cabianca / Sgorbati | Edgar Fronteras | 11th |
| 12.6.1955 | 24 h Le Mans | 47 | | Péron / Bourillot | Jacques Peron | DNA |
| 12.6.1955 | 24 h Le Mans | | | | Osca | DNA |
| 12.6.1955 | 24 h Le Mans | | | | Osca | DNA |
| 12.6.1955 | 24 h Le Mans | | | | Osca | DNA |
| 19.6.1955 | Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 15 | | Jim Johnston | James Johnston | ?th |
| 19.6.1955 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 15 | | Jim Johnston | James Johnston | ?th |
| 19.6.1955 | GP Shell Imola | 20 | #1163 | Roberto Sgorbati | Edgar Fronteras | DNF |
| 19.6.1955 | GP Shell Imola | 22 | #1151 | Giulio Cabianca | Giulio Cabianca | 10th |
| 19.6.1955 | GP Tunisia | 34 | #1161 | Roger Porre | Racing Sport | 8th |
| 19.6.1955 | Preliminary Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 66 | | Phil Stewart | Phil Stewart | ?th |
| 19.6.1955 | Lawrenceville [BM+CM+DM+EM+FM+CP+DP+EP] | 166 | | Phil Stewart | Phil Stewart | ?th |
| 19.6.1955 | GP Tunisia | | #1150 | Jacques Péron | Guglielmo Carraroli | 7th |
| 25.6.1955 | Circuito do Porto [S1.5] | | | Casimiro de Oliveira | | 4th |
| 26.6.1955 | GP Caserta [S1.1] | | #1131 | Elio Lenza | | 5th |
| 26.6.1955 | GP Caserta [S1.1] | | #1143 | Attilio Brandi | | 4th |
| 26.6.1955 | GP Caserta [S1.1] | | #1156 | Giuseppe Rossi | Giuseppe Rossi | 1st |
| 26.6.1955 | GP Caserta [S1.1] | | #1158 | Gaetano Sani | | DNF |
| 26.6.1955 | GP Caserta [S1.1] | | #1117 | "Madero" | | 6th |
| 3.7.1955 | Milwaukee [FM+GM+HM+IM+FP+GP] | 7 | | Rees Makins | | DNA |
| 3.7.1955 | Milwaukee [FM+GM+HM+IM+FP+GP] | 66 | | Ted Boynton | | DNA |
| 3.7.1955 | Milwaukee [FM+GM+HM+IM+FP+GP] | 177 | #1132 | Frank Bott | | 1st |
| 3.7.1955 | Milwaukee [BM+CM+DM+EM+CP+DP+EP] | 177 | #1132 | Frank Bott | | ?th |
| 10.7.1955 | SCCA National Torrey Pines [S1.5] | 7 | | Skip Swartley | Skip Swartley | 11th |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 85 | #1156 | Giuseppe Rossi | Giuseppe Rossi | 10th |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 88 | | "Nando" | | DNF |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 90 | #1143 | Attilio Brandi | Attilio Brandi | 30th |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 134 | | Roberto Nicole | | DNF |
| 10.7.1955 | Coppa d'Oro delle Dolomiti | 141 | #1151 | Giulio Cabianca | Giulio Cabianca | 3rd |
| 10.7.1955 | SCCA National Torrey Pines [S1.5] | 188 | | I. W. Stephenson | I. W. Stephenson | DNA |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | 14 | #1156 | Giuseppe Rossi | Giuseppe Rossi | 5th |
| 17.7.1955 | Circuito di Reggio Calabria [Handicap] | | #1166 | Bruno Ricciardi | | 3rd |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | | #1130 | Adriano Tuzi | | 6th |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | | #1143 | Attilio Brandi | | 4th |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | | #1166 | Bruno Ricciardi | | 3rd |
| 17.7.1955 | Circuito di Reggio Calabria [S1.1] | | #1126 | Angelo Sbordone | | raced |
| 23.7.1955 | Brynfan Tyddyn [EM+FM] | 103 | #1114 | Otto Linton | | 1st |
| 31.7.1955 | SCCA National Seafair [FM+GM+HM+FIII] | 117 | | Skip Swartley | Skip Swartley | 6th |
| 31.7.1955 | SCCA National Seafair [FM+GM+HM+FIII] | 180 | | I. W. Stephenson | J. W. Stephenson | DNA |
| 13.8.1955 | Edenvale [S1.5] | 43 | | Jim Pauley | | 1st |
| 13.8.1955 | 1 h Edenvale [Le Mans Handicap] | 43 | | Jim Pauley | | DNA |
| 21.8.1955 | Novice Buchanan Field [Modifed 1.5] | 23 | #1122 | George Rosenblatt | Al Coppel | 2nd |
| 21.8.1955 | Buchanan Field [Modified 1.5] | 23 | #1122 | Al Coppel | Alfred Coppel | DNA |
| 21.8.1955 | Buchanan Field [Modified 1.5] | 55 | #1121 | Sam Weiss | Sam Weiss | 1st |
| 21.8.1955 | Buchanan Field [Modified 1.5] | 117 | | Chick Leson | Chick Leson | 10th |
| 21.8.1955 | Giro delle Calabria | 800 | #1156 | Giuseppe Rossi | Giuseppe Rossi | 3rd |
| 21.8.1955 | Giro delle Calabria | | #1131 | Elio Lenza | | DNF |
| 21.8.1955 | Giro delle Calabria | | #1151 | Giulio Cabianca | | DNF |
| 21.8.1955 | Giro delle Calabria | | #1166 | Bruno Venezian | | DNF |
| 21.8.1955 | Giro delle Calabria | | #1143 | Attilio Brandi | | 16th |
| 28.8.1955 | GP Pergusa | | #1156 | Giuseppe Rossi | Giuseppe Rossi | 3rd |
| 28.8.1955 | GP Pergusa | | #1143 | Attilio Brandi | Attilio Brandi | 4th |
| 3.9.1955 | Premiliary Santa Barbara [Modified 1.5] | 1 | | William Bell | Wm. 'Bumpy' Bell | DNA |
| 3.9.1955 | Premiliary Santa Barbara [Modified 1.5] | 217 | | Chick Leson | Chick Leson | DNA |
| 4.9.1955 | Santa Barbara [Modified 1.5] | 1 | | William Bell | Wm. 'Bumpy' Bell | DNA |
| 4.9.1955 | Finale Thompson [All Classes] | 15 | #1137 | Briggs Cunningham | Briggs Cunningham | 8th |
| 4.9.1955 | SCCA National Thompson [FM] | 15 | #1137 | Briggs Cunningham | Briggs Cunningham | 4th |
| 4.9.1955 | SCCA National Thompson [GM+HM] | 43 | #1114 | Otto Linton | | DNF |
| 4.9.1955 | SCCA National Thompson [FM] | 63 | | Jim Pauley | | 2nd |
| 4.9.1955 | Finale Thompson [All Classes] | 63 | | Jim Pauley | | 7th |
| 4.9.1955 | Santa Barbara [Modified 1.5] | 217 | | Chick Leson | Chick Leson | DNA |
| 5.9.1955 | SCCA National Kansas City [GM+HM+FP+GP] | 85 | #1112 | Jack Kisner | | 6th |
| 5.9.1955 | Preliminary Kansas City [GM+HM+FP+GP] | 85 | #1112 | Jack Kisner | | 4th |
| 5.9.1955 | SCCA National Kansas City [BM+CM+DM+EM+FM] | 132 | #1145 | Jim Hall | | 19th |
| 5.9.1955 | Preliminary Kansas City [BM+CM+DM+EM+FM] | 132 | #1145 | Jim Hall | | 21st |
| 10.9.1955 | SCCA National Road America [EM+FM] | 15 | | Jim Johnston | James R. Johnston | DNA |
| 10.9.1955 | SCCA National Road America [EM+FM] | 61 | #1137 | Briggs Cunningham | Briggs Cunningham | 3rd |
| 10.9.1955 | SCCA National Road America [EM+FM] | 66 | | Frank Bott | Phil Stewart | 1st |
| 10.9.1955 | SCCA National Road America [EM+FM] | 66 | | Phil Stewart | Phil Stewart | DNA |
| 10.9.1955 | SCCA National Road America [EM+FM] | 77 | | Rees Makins | Rees Makins | DNF |
| 11.9.1955 | SCCA National Road America [GM+HM] | 177 | | Rees Makins | Rees Makins | 1st |
| 11.9.1955 | SCCA National Road America [GM+HM] | 185 | #1112 | Jack Kisner | Jack Kisner | 5th |
| 11.9.1955 | SCCA National Road America [GM+HM] | 207 | | Skip Swartley | Skip Swartley | DNA |
| 17.9.1955 | SCCA National Watkins Glen [Formula Libre] | 43 | #1114 | Otto Linton | I. Otto Linton | DNF |
| 17.9.1955 | SCCA National Watkins Glen [FM+GM+HM+FP] | 61 | #1137 | Briggs Cunningham | Briggs S. Cunningham | DNF |
| 17.9.1955 | SCCA National Watkins Glen [FM+GM+HM+FP] | 143 | #1138? | Jim Pauley | Ecurie Chacun a Son Gout | DNA |
| 17.9.1955 | SCCA National Watkins Glen [FM+GM+HM+FP] | 177 | | Rees Makins | Rees T. Makins | DNA |
| 17.9.1955 | SCCA National Watkins Glen [FM+GM+HM+FP] | 187 | | Skip Swartley | Skip Swartley | 22nd |
| 18.9.1955 | Tourist Trophy | 33 | | Giulio Cabianca | Osca | DNA |
| 25.9.1955 | GP Berlin [S1.5] | 1 | #1165 | Louis Chiron | Racing Sport | 10th |
| 25.9.1955 | GP Berlin [S1.5] | 8 | | Guy Porre | | DNA |
| 1.10.1955 | SCCA Regional Salinas [Modified 1.5] | 9 | #1135 | Bill David | | raced |
| 1.10.1955 | SCCA Regional Salinas [Modified 1.5] | 55 | #1121 | Sam Weiss | | raced |
| 1.10.1955 | Edenvale [S1.5] | 63 | | Jim Pauley | | 1st |
| 1.10.1955 | Edenvale [S3.0] | 63 | | Jim Pauley | | raced |
| 1.10.1955 | SCCA Regional Salinas [Modified 1.5] | 117 | #1148 | Chick Leson | | 3rd |
| 1.10.1955 | Novice Salinas [Modified 1.5] | 125 | #1127 | Jerry Barden | Jerry Barden | 2nd |
| 9.10.1955 | SCCA Regional Thompson [FM+GM+HM] | 1 | #1137 | Briggs Cunningham | | 1st |
| 16.10.1955 | Targa Florio | 42 | #1106 | Rotolo / di Pasquale | Automobili Osca | 14th |
| 16.10.1955 | SCCA National Hagerstown [FM+GM+HM] | 47 | | Skip Swartley | J. N. Swartley | 19th |
| 16.10.1955 | Targa Florio | 54 | #1166 | Ricciardi / Sbordone | | DNF |
| 16.10.1955 | SCCA National Hagerstown [FM+GM+HM] | 61 | #1137 | Briggs Cunningham | Briggs S. Cunningham | 2nd |
| 16.10.1955 | Targa Florio | 64 | #1151 | Cabianca / Carini | Automobili Osca | 7th |
| 16.10.1955 | Targa Florio | 66 | | Wolfgang Seidel | | DNS |