| 6.1.1990 | Daytona Test | 5 | Mustang Probe | Herzog / Haywood | Rene Herzog | 11th |
| 6.1.1990 | Daytona Test | 6 | Mustang Probe | Hurley Haywood | Tom Milner Racing | 8th |
| 6.1.1990 | Daytona Test | 74 | Mustang | George Robinson | 74 Hunting Ranch | 14th |
| 4.2.1990 | 24 h Daytona | 6 | Mustang Probe | Herzog / Grohs | Tom Milner Racing | DNS |
| 4.2.1990 | 24 h Daytona | 74 | Mustang | Dallenbach / Robinson / Unser / Dallenbach, Jr. | 74 Hunting Ranch | 11th |
| 25.2.1990 | 45 min Miami [GT] | 74 | Mustang | George Robinson | 74 Hunting Ranch | 5th |
| 17.3.1990 | 12 h Sebring | 74 | Mustang | Robinson / Unser / Dallenbach | 74 Hunting Ranch | 41st |
| 21.4.1990 | 1 h Long Beach [GT] | 74 | Mustang | George Robinson | 74 Hunting Ranch | 31st |
| 21.4.1990 | 1 h Long Beach [GT] | 93 | Mustang | Chuck Kendall | | 5th |
| 5.5.1990 | 2 h Topeka [GT] | 74 | Mustang | George Robinson | 74 Hunting Ranch | DNA |
| 17.6.1990 | 24 h Nürburgring | 1 | Sierra RS 500 | Schneider / Biela / Asch / Manthey | Ford Motorsport Eggenberger | DNF |
| 17.6.1990 | 24 h Nürburgring | 2 | Sierra RS 500 | Lindström / Asch / Dören / Biela | Ford Motorsport Eggenberger | DNF |
| 17.6.1990 | 24 h Nürburgring | 3 | Sierra RS 500 | van Ommen / Tassin / Rensing / Kelleners | Ford-Wolf-Racing | DNF |
| 17.6.1990 | 24 h Nürburgring | 4 | Sierra RS 500 | Mattschull / Schlesack / Kather | Ford Ringshausen Motorsport | 4th |
| 17.6.1990 | 24 h Nürburgring | 5 | Sierra RS 500 | Selzer / Tilke / Bröhling / John | Selzer Motorsport | DNF |
| 17.6.1990 | 24 h Nürburgring | 60 | Fiesta XR2i | Funke / Unterhuber / Gerlings / Bernhard | F&S Fahrzeugtechnik | 73rd |
| 17.6.1990 | 24 h Nürburgring | 64 | Fiesta XR2i | Schmitz / Schmitz / Bröhling, Jr. / Trunk | Asch RS Nachwuchsförderung | DNF |
| 17.6.1990 | 24 h Nürburgring | 65 | Fiesta XR2i | Allatta / Maier / Angerer / Grünfelder | | 86th |
| 17.6.1990 | 24 h Nürburgring | 66 | Fiesta XR2i | Eifert / Eifert / Henry | | 76th |
| 17.6.1990 | 24 h Nürburgring | 67 | Fiesta XR2i | Wirtz / Hild / Fischer / Marschall | ClimAir Ford Kuhn Racing Team | 55th |
| 17.6.1990 | 24 h Nürburgring | 68 | Fiesta XR2i | Dorsch / Huch / Köhler / Fleischhauer | | DNF |
| 17.6.1990 | 24 h Nürburgring | 69 | Fiesta XR2i | Hürtgen / Steger / Ehlebracht / Schmölders | | DNF |
| 17.6.1990 | 24 h Nürburgring | 71 | Fiesta XR2i | Huxohl / Klink / Klink / Hild | ClimAir Ford Kuhn Racing Team | 84th |
| 17.6.1990 | 24 h Nürburgring | 72 | Fiesta XR2i | Wiluda / Schmitz / Beisiegel / Burs | | 80th |
| 17.6.1990 | 24 h Nürburgring | 73 | Fiesta XR2i | Dobberkau / Sonntag / Eckhardt / Martin | | 85th |
| 17.6.1990 | 24 h Nürburgring | 74 | Fiesta XR2i | Kottulinsky / Braun / Tramnitz / Dron | Ford Werke AG | DNF |
| 17.6.1990 | 24 h Nürburgring | 75 | Fiesta XR2i | Briel / Hahne / Scheuer / Reichert | Ford Werke AG | 61st |
| 17.6.1990 | 24 h Nürburgring | 76 | Fiesta XR2i | Schneider / Lachenmann / Szymanski | Ford Werke AG | 82nd |
| 17.6.1990 | 24 h Nürburgring | 87 | Sierra Cosworth | Kelleners / Hess / Grütter | Krafft-Walzen-Düren | 19th |
| 17.6.1990 | 24 h Nürburgring | 88 | Sierra Cosworth | Weiss / Burkhard / Weber | Ford Wolf Racing | DNF |
| 17.6.1990 | 24 h Nürburgring | 89 | Sierra Cosworth | Schmitt / Bermel / Schlesack / Drexler | ClimAir Ford Kuhn Racing Team | 51st |
| 17.6.1990 | 24 h Nürburgring | 90 | Sierra Cosworth | Selzer / Bröhling, Jr. / Schmitz / Räk | Selzer Motorsport | DNF |
| 17.6.1990 | 24 h Nürburgring | 91 | Sierra Cosworth | Buhk / Hufstadt / Weber / Zerha | BORBET Leichtmetallräder | 29th |
| 17.6.1990 | 24 h Nürburgring | 92 | Sierra Cosworth | Seher / Heilemann / Becker | Divinol Motor Oils | 24th |
| 17.6.1990 | 24 h Nürburgring | 93 | Sierra Cosworth | Quargentan / Capra / da Schio | Seikel Motorsport | 45th |
| 17.6.1990 | 24 h Nürburgring | 95 | Sierra Cosworth | Paul / Wester / Witzel | ACBL Remscheid | 16th |
| 17.6.1990 | 24 h Nürburgring | 96 | Sierra Cosworth | Bos / Schmit / Weber / Spiliotis | | 79th |
| 17.6.1990 | 24 h Nürburgring | 98 | Sierra Cosworth | Klink / Palma / Giudici | MOHAG Motorsport | 105th |
| 17.6.1990 | 24 h Nürburgring | 99 | Sierra Cosworth | Maniero / Arlotti / Lusuardi / Ragazzi | | DNF |
| 17.6.1990 | 24 h Nürburgring | 101 | Sierra Cosworth | Price / Gregory / Rimmer | | 101st |
| 14.7.1990 | Meadowlands [GT] | 36 | RS200 | Joe Varde | Marco Polo Motorsports | 27th |
| 14.7.1990 | Meadowlands [GT] | 74 | Mustang | George Robinson | 74 Hunting Ranch | 8th |
| 15.7.1990 | Zeltweg National | 18 | Sierra Cosworth | Klaus Reisinger | | raced |
| 15.7.1990 | Zeltweg National | 33 | Sierra RS Cosworth | Karl Oppitzhauser | | raced |
| 22.7.1990 | 24 h Spa | 4 | Sierra RS Cosworth | van Ommen / Kelleners | Wolf Racing | DNA |