| 5.2.1978 | 24 h Daytona | 0 | #930 890 0019 | Ongais / Field / Minter | Interscope Racing | 56th |
| 5.2.1978 | 24 h Daytona | 3 | #930 770 0902 | Finotto / Facetti | Jolly Club | 66th |
| 5.2.1978 | 24 h Daytona | 6 | #930 890 0033 | Barbour / Schurti / Rutherford | Dick Barbour Performance | 2nd |
| 5.2.1978 | 24 h Daytona | 7 | #930 770 0958 | Heimrath / Bienvenue / Ridgely | Heimrath Racing | 35th |
| 5.2.1978 | 24 h Daytona | 12 | #930 890 0012 | Wollek / Pescarolo / Jaunet | Porsche Kremer Racing | 57th |
| 5.2.1978 | 24 h Daytona | 13 | #930 670 0180 | Shaw, Jr. / Busby / Meister | Bankrupt Inc Racing | 10th |
| 5.2.1978 | 24 h Daytona | 14 | #007 00016 | Brambring / Schornstein / "Winter" | Kremer Porsche Racing | 5th |
| 5.2.1978 | 24 h Daytona | 21 | #930 770 0907 | Konrad / Jöst / Merl | Joest | 13th |
| 5.2.1978 | 24 h Daytona | 59 | #930 770 0909 | Gregg / Ballot-Léna / Frisselle | JMS Brumos Porsche | 9th |
| 5.2.1978 | 24 h Daytona | 95 | #930 770 0957 | Haywood / Hagestad / Bundy | Bob Hagestad | 40th |
| 5.2.1978 | 24 h Daytona | 99 | #930 890 0011 | Stommelen / Hezemans / Gregg | JMS Brumos Porsche | 1st |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 2 | #930 890 0013 | Bob Wollek | Vaillant Kremer Team | 2nd |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 3 | #930 890 0012 | Dieter Schornstein | Porsche Kremer Racing | 8th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 4 | #007 00016 | "John Winter" | Porsche Kremer Racing | 9th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 5 | #930 890 0017 | Manfred Schurti | Jägermeister Max Moritz Team | 11th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 6 | #930 890 0015 | Toine Hezemans | Weisberg Gelo Team | 1st |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 7 | #930 890 0016 | Reinhold Jöst | Liqui Moly équipe | 6th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 8 | #930 890 0011 | John Fitzpatrick | Weisberg Gelo Team | 3rd |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 9 | | | Weisberg Gelo Team | DNA |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 10 | #930 890 0014 | Franz Konrad | Konrad Racing | 12th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 16 | #930 770 0907 | Volkert Merl | Konrad Racing | 7th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 17 | #911 460 9073 | Eckhard Schimpf | Jägermeister Max Moritz Team | DNA |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 18 | #930 670 0540 | Klaus Drees | Klaus Drees | 10th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 31 | #930 770 0908 | Henri van Oorschot | Henri van Oorschot | 5th |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 32 | #930 670 0159 | Toon Suykerbuyk | Scorpio-Racing | DNA |
| 12.3.1978 | DRM Zolder Bergischer Löwe | 33 | #930 770 0903 | Claude Bourgoignie | Claude Bourgoignie | 4th |
| 18.3.1978 | 12 h Sebring | 6 | #930 890 0033 | Barbour / Stommelen / Schurti | Dick Barbour Performance | 57th |
| 18.3.1978 | 12 h Sebring | 7 | #930 770 0958 | Heimrath | Heimrath Racing | 73rd |
| 18.3.1978 | 12 h Sebring | 9 | #930 890 0037 | Redman / Mendez / Garretson | Dick Barbour Performance | 1st |
| 18.3.1978 | 12 h Sebring | 13 | #930 670 0180 | Shaw, Jr. / Spalding | Ore House - Vail | 3rd |
| 18.3.1978 | 12 h Sebring | 28 | #930 770 0960 | Kearns / Hinze / Behr | Desperado Racing | 49th |
| 18.3.1978 | 12 h Sebring | 59 | #930 770 0909 | Gregg | Brumos Porsche | 69th |
| 18.3.1978 | 12 h Sebring | 94 | #930 890 0023 | Whittington / Whittington | Whittington Bros. | DNA |
| 18.3.1978 | 12 h Sebring | 95 | #930 770 0957 | Hagestad / Haywood | Bob Hagestad | 2nd |
| 19.3.1978 | 6 h Mugello | 3 | #930 770 0902 | Finotto / Facetti | Jolly Club | 5th |
| 19.3.1978 | 6 h Mugello | 7 | #930 770 0911 | Casoni / Manfredini | Sportwagen | 17th |
| 19.3.1978 | 6 h Mugello | 8 | #007 00016 | Schornstein / "Winter" / Wollek | Porsche Kremer Racing | 7th |
| 19.3.1978 | 6 h Mugello | 9 | #930 890 0022 | Wollek / Pescarolo | Porsche Kremer Racing | DNF |
| 19.3.1978 | 6 h Mugello | 11 | #930 890 0011 | Fitzpatrick / Ludwig / Hezemans | Gelo Racing Team | 9th |
| 19.3.1978 | 6 h Mugello | 12 | #930 890 0015 | Hezemans / Heyer / Fitzpatrick | Gelo Racing Team | 1st |
| 19.3.1978 | 6 h Mugello | 15 | #930 890 0014 | Konrad / Jöst / Merl | Konrad Racing | 2nd |
| 19.3.1978 | 6 h Mugello | 16 | #930 770 0912 | Ballot-Léna / Lafosse | ASA Cachia | 15th |
| 19.3.1978 | 6 h Mugello | 19 | | Rebai / Cambiaghi | Carlo Rebai | DNF |
| 19.3.1978 | 6 h Mugello | 22 | #930 770 0904 | Haldi / Müller | Meccarillos Racing | 4th |
| 19.3.1978 | 6 h Mugello | 24 | #911 350 1121?? | Striebig / Verney | Anny-Charlotte Verney | DNA |
| 19.3.1978 | 6 h Mugello | 26 | #930 770 0906 | Monticone / "Victor" | "Victor" | DNF |
| 19.3.1978 | 6 h Mugello | 29 | #930 670 0540 | Drees / Kauwertz | Klaus Drees | 16th |
| 19.3.1978 | 6 h Mugello | 35 | | Simonsen / Lundgardh | Vastkuststugan | DNA |
| 19.3.1978 | Colmar-Berg | 76 | #006 00019-K1 | John Lagodny | | 1st |
| 27.3.1978 | Benelux Zandvoort | 73 | #930 770 0903 | Claude Bourgoignie | Team Willeme | 2nd |
| 27.3.1978 | Benelux Zandvoort | 74 | #930 770 0908 | Henri van Oorschot | Scorpio Racing | 1st |
| 27.3.1978 | Benelux Zandvoort | 75 | #930 670 0159 | Toon Suykerbuyk | Scorpio Racing | DNF |
| 2.4.1978 | 6 h Talladega | 6 | #930 890 0033 | Barbour / Rutherford | Dick Barbour Racing | 3rd |
| 2.4.1978 | 6 h Talladega | 9 | #930 890 0037 | Paul / Bondurant | Dick Barbour | 18th |
| 2.4.1978 | 6 h Talladega | 13 | #930 670 0180 | Spalding / Shaw, Jr. | Hal Shaw Racing | 23rd |
| 2.4.1978 | 6 h Talladega | 28 | #930 770 0960 | Kearns / Minter | Desperado Racing | 33rd |
| 2.4.1978 | 6 h Talladega | 30 | #930 770 0905 | Moretti / Mendez | Electrodyne Inc. | 32nd |
| 2.4.1978 | 6 h Talladega | 59 | #930 770 0909 | Gregg / Frisselle | Brumos Porsche | 1st |
| 2.4.1978 | Marlboro Cup Zolder | 73 | #930 770 0903 | Claude Bourgoignie | | 1st |
| 2.4.1978 | Marlboro Cup Zolder | 74 | #930 770 0908 | Henri van Oorschot | Henri van Oorschot | 2nd |
| 2.4.1978 | Marlboro Cup Zolder | 75 | #930 670 0159 | Toon Suykerbuyk | | 3rd |
| 2.4.1978 | Marlboro Cup Zolder | 76 | #006 00019-K1 | John Lagodny | | 4th |
| 2.4.1978 | 6 h Talladega | 94 | #930 890 0023 | Whittington / Whittington | Whittington Brothers Racing | 2nd |
| 2.4.1978 | 6 h Talladega | 95 | #930 770 0957 | Haywood / Hagestad | Bob Hagestad | 26th |
| 1978 | 6 h Dakar | 15 | #911 350 1121?? | Verney / Striebig | | DNA |
| 1978 | Costa Verde | 75 | #911 460 9095 | Robert Giannone | | 1st |
| 1978 | Vila do Conde | 79 | | Joaquim Moutinho | | 1st |
| 1978 | Primavera Estoril | | #911 460 9095 | Robert Giannone | | 1st |
| 1978 | CI Gr.5 Pergusa | | #930 770 0902 | Carlo Facetti | | 1st |
| 1978 | Vila do Conde | | #911 460 9095 | Robert Giannone | | raced |