| 21.8.1955 | Novice Buchanan Field [Modifed 1.5] | 23 | MT4 1350 | George Rosenblatt | Al Coppel | 2nd |
| 21.8.1955 | Giro delle Calabria | | MT4 1100 | Attilio Brandi | | 16th |
| 21.8.1955 | Giro delle Calabria | | MT4 1100 | Elio Lenza | | DNF |
| 28.8.1955 | GP Pergusa | | MT4 1100 | Attilio Brandi | Attilio Brandi | 4th |
| 28.8.1955 | GP Pergusa | | MT4 1100 | Giuseppe Rossi | Giuseppe Rossi | 3rd |
| 3.9.1955 | Premiliary Santa Barbara [Modified 1.5] | 1 | MT4 1500 | William Bell | Wm. 'Bumpy' Bell | DNA |
| 3.9.1955 | Premiliary Santa Barbara [Modified 1.5] | 217 | MT4 MM | Chick Leson | Chick Leson | DNA |
| 4.9.1955 | Santa Barbara [Modified 1.5] | 1 | MT4 1500 | William Bell | Wm. 'Bumpy' Bell | DNA |
| 4.9.1955 | SCCA National Thompson [FM] | 15 | MT4 1450 | Briggs Cunningham | Briggs Cunningham | 4th |
| 4.9.1955 | Finale Thompson [All Classes] | 15 | MT4 1450 | Briggs Cunningham | Briggs Cunningham | 8th |
| 4.9.1955 | SCCA National Thompson [GM+HM] | 43 | MT4 1300 | Otto Linton | | DNF |
| 4.9.1955 | Finale Thompson [All Classes] | 63 | MT4 | Jim Pauley | | 7th |
| 4.9.1955 | SCCA National Thompson [FM] | 63 | MT4 | Jim Pauley | | 2nd |
| 4.9.1955 | Santa Barbara [Modified 1.5] | 217 | MT4 MM | Chick Leson | Chick Leson | DNA |
| 5.9.1955 | Preliminary Kansas City [GM+HM+FP+GP] | 85 | MT4 1100 | Jack Kisner | | 4th |
| 5.9.1955 | SCCA National Kansas City [GM+HM+FP+GP] | 85 | MT4 1100 | Jack Kisner | | 6th |
| 5.9.1955 | SCCA National Kansas City [BM+CM+DM+EM+FM] | 132 | MT4 1450 | Jim Hall | | 19th |
| 5.9.1955 | Preliminary Kansas City [BM+CM+DM+EM+FM] | 132 | MT4 1450 | Jim Hall | | 21st |
| 5.9.1955 | Preliminary Kansas City [BM+CM+DM+EM+FM] | | | | | DNS |
| 10.9.1955 | SCCA National Road America [EM+FM] | 15 | MT4 | Jim Johnston | James R. Johnston | DNA |
| 10.9.1955 | SCCA National Road America [EM+FM] | 61 | MT4 1450 | Briggs Cunningham | Briggs Cunningham | 3rd |
| 10.9.1955 | SCCA National Road America [EM+FM] | 66 | MT4 | Frank Bott | Phil Stewart | 1st |
| 10.9.1955 | SCCA National Road America [EM+FM] | 66 | MT4 | Phil Stewart | Phil Stewart | DNA |
| 10.9.1955 | SCCA National Road America [EM+FM] | 77 | MT4 | Rees Makins | Rees Makins | DNF |
| 11.9.1955 | SCCA National Road America [GM+HM] | 177 | MT4 1100 | Rees Makins | Rees Makins | 1st |
| 11.9.1955 | SCCA National Road America [GM+HM] | 185 | MT4 1100 | Jack Kisner | Jack Kisner | 5th |
| 11.9.1955 | SCCA National Road America [GM+HM] | 207 | MT4 1100 Special | Skip Swartley | Skip Swartley | DNA |
| 17.9.1955 | SCCA National Watkins Glen [Formula Libre] | 43 | MT4 1300 | Otto Linton | I. Otto Linton | DNF |
| 17.9.1955 | SCCA National Watkins Glen [FM+GM+HM+FP] | 61 | MT4 1500 | Briggs Cunningham | Briggs S. Cunningham | DNF |
| 17.9.1955 | SCCA National Watkins Glen [FM+GM+HM+FP] | 143 | MT4 | Jim Pauley | Ecurie Chacun a Son Gout | DNA |
| 17.9.1955 | SCCA National Watkins Glen [FM+GM+HM+FP] | 177 | MT4 1100 | Rees Makins | Rees T. Makins | DNA |
| 17.9.1955 | SCCA National Watkins Glen [FM+GM+HM+FP] | 187 | MT4 1100 Special | Skip Swartley | Skip Swartley | 22nd |
| 18.9.1955 | Tourist Trophy | 33 | MT4 1500 | Giulio Cabianca | Osca | DNA |
| 25.9.1955 | GP Berlin [S1.5] | 1 | MT4 1500 | Louis Chiron | Racing Sport | 10th |
| 25.9.1955 | GP Berlin [S1.5] | 8 | MT4 1500 | Guy Porre | | DNA |
| 1.10.1955 | SCCA Regional Salinas [Modified 1.5] | 9 | MT4 1450 | Bill David | | raced |
| 1.10.1955 | SCCA Regional Salinas [Modified 1.5] | 55 | MT4 1300 | Sam Weiss | | raced |
| 1.10.1955 | Edenvale [S1.5] | 63 | MT4 | Jim Pauley | | 1st |
| 1.10.1955 | Edenvale [S3.0] | 63 | MT4 | Jim Pauley | | raced |
| 1.10.1955 | SCCA Regional Salinas [Modified 1.5] | 117 | MT4 | Chick Leson | | 3rd |
| 1.10.1955 | Novice Salinas [Modified 1.5] | 125 | MT4 1300 | Jerry Barden | Jerry Barden | 2nd |
| 9.10.1955 | SCCA Regional Thompson [FM+GM+HM] | 1 | MT4 1450 | Briggs Cunningham | | 1st |
| 16.10.1955 | Targa Florio | 42 | MT4 1100 | Rotolo / di Pasquale | Automobili Osca | 14th |
| 16.10.1955 | SCCA National Hagerstown [FM+GM+HM] | 47 | MT4 1100 Special | Skip Swartley | J. N. Swartley | 19th |
| 16.10.1955 | Targa Florio | 54 | MT4 1100 | Ricciardi / Sbordone | | DNF |
| 16.10.1955 | SCCA National Hagerstown [FM+GM+HM] | 61 | MT4 1500 | Briggs Cunningham | Briggs S. Cunningham | 2nd |
| 16.10.1955 | Targa Florio | 64 | MT4 1500 | Cabianca / Carini | Automobili Osca | 7th |
| 16.10.1955 | Targa Florio | 66 | MT4 | Wolfgang Seidel | | DNS |
| 16.10.1955 | SCCA National Hagerstown [FM+GM+HM] | 66 | | Phil Stewart | Philip B. Stewart | DNA |
| 16.10.1955 | SCCA National Hagerstown [FM+GM+HM] | 143 | | Otto Linton | L. Otto Linton | DNA |
| 23.10.1955 | Torrey Pines [S1.5] | 125 | MT4 1300 | Bill Louden | O. Jene Blank | 3rd |
| 25.10.1955 | Premio Vallelunga | | MT4 1100 | Adriano Tuzi | | ?th |
| 30.10.1955 | SCCA National Sacramento [FM+GM+HM] | 55 | MT4 1300 | Sam Weiss | | 3rd |
| 6.11.1955 | GP Venezuela | 36 | MT4 1500 | Louis Chiron | Equipo Madunina (Caracas) | DNF |
| 6.11.1955 | GP Venezuela | 38 | MT4 1500 | Bell | OSCA | DNF |
| 6.11.1955 | GP Venezuela | 38 | MT4 1500 | William Bell | OSCA | DNA |
| 13.11.1955 | SCCA National Glendale [FM+GM+HM] | 27 | MT4 1300 | Bill Louden | | 8th |
| 9.12.1955 | Governor's Trophy | 56 | MT4 1300 | Sam Weiss | Sam Weiss | 48th |
| 11.12.1955 | Nassau Trophy | 56 | MT4 1300 | Sam Weiss | Sam Weiss | 10th |
| 11.12.1955 | Nassau Trophy | 63 | MT4 | Jim Pauley | | DNA |