| 5.6.1966 | 1000 km Nürburgring | 15 | #154 | Herrmann / Glemser | Porsche | DNF |
| 5.6.1966 | 1000 km Nürburgring | 16 | #141 | Schütz / Klass | Porsche | DNF |
| 5.6.1966 | 1000 km Nürburgring | 18 | #102 | Siffert / Vögele | Team Charles Vögele | DNF |
| 5.6.1966 | 1000 km Nürburgring | 59 | #101 | de Klerk / De Udy | Porsche Cars Great Britain Ltd. | DNF |
| 5.6.1966 | 1000 km Nürburgring | 61 | #108 | Beltoise / Nöcker | Porsche | 11th |
| 5.6.1966 | 1000 km Nürburgring | 62 | #117 | Axelsson / Johansson | Sten Axelsson | 8th |
| 5.6.1966 | 1000 km Nürburgring | 63 | #126 | Kühnis / Walter | Ecurie Basilisk | DNF |
| 5.6.1966 | 1000 km Nürburgring | 64 | #119 | Koch / Linge | Gerhard Koch | 10th |
| 12.6.1966 | Rose Cup Portland | 356 | #140 | Gary Wright | | DNF |
| 19.6.1966 | Keimola [GT/S] | 1 | #125 | Antti Aarnio-Wihuri | | 1st |
| 19.6.1966 | Keimola [GT/S] | 2 | | Ulf Norinder | | 3rd |
| 19.6.1966 | Keimola [GT/S] | 3 | #117 | Boo Johansson | | 2nd |
| 19.6.1966 | DARM Mainz-Finthen [S+1.6] | 11 | #124 | Gerhard Mitter | Scuderia Lufthansa | 1st |
| 19.6.1966 | DARM Mainz-Finthen [S+1.6] | 12 | #134 | Gijs van Lennep | Racing Team Holland | 3rd |
| 19.6.1966 | Hockenheim [S+1.6/R+1.1] | 13 | #126 | Hans Kühnis | Ecurie Basilisk | 3rd |
| 19.6.1966 | DARM Mainz-Finthen [S+1.6] | 14 | #146 | Ben Pon | Racing Team Holland | 2nd |
| 19.6.1966 | Hockenheim [S+1.6/R+1.1] | 14 | #131 | Dieter Spoerry | FRC | DNA |
| 19.6.1966 | Hockenheim [S+1.6/R+1.1] | 15 | #135 | André Wicky | Wicky Racing Teram | DNA |
| 19.6.1966 | 24 h Le Mans | 30 | #153 | Siffert / Davis | Porsche System Engineering | 4th |
| 19.6.1966 | 24 h Le Mans | 31 | #107 | Robert Buchet | Robert Buchet | DNA |
| 19.6.1966 | 24 h Le Mans | 31 | #151 | Herrmann / Linge | Porsche System Engineering | 5th |
| 19.6.1966 | 24 h Le Mans | 32 | #152 | Schütz / de Klerk | Porsche System Engineering | 6th |
| 19.6.1966 | 24 h Le Mans | 33 | #155 | Gregg / Axelsson | Porsche System Engineering | DNF |
| 19.6.1966 | 24 h Le Mans | 34 | #114 | Buchet / Koch | Auguste Veuillet | DNF |
| 19.6.1966 | June Sprints Road America [SR] | 56 | #148 | Ralph Trieschmann | | 2nd |
| 19.6.1966 | 24 h Le Mans | 56 | | Colin Davis | Porsche System Engineering | DNA |
| 19.6.1966 | 24 h Le Mans | 58 | #143 | Klass / Stommelen | Porsche System Engineering | 7th |
| 19.6.1966 | 24 h Le Mans | 60 | #129 | Mike De Udy | W. H. Aldington | DNA |
| 19.6.1966 | June Sprints Road America [SR] | 69 | #147 | Lee Hall | E. L. Hall | 5th |
| 24.6.1966 | SM Falmarksbanan [SP2.0] | 1 | #117 | Sten Axelsson | Botkyrka MK | 1st |
| 24.6.1966 | SM Falmarksbanan [SP2.0] | 8 | | Ulf Norinder | KAK | 2nd |
| 26.6.1966 | GP Watkins Glen | 1 | #133 | Charlie Kolb | Schroeder Imported Motor Corp. | DNF |
| 26.6.1966 | GP Watkins Glen | 4 | #106 | Peter Gregg | Brumos Porsche Corp. | 9th |
| 26.6.1966 | GP Watkins Glen | 7 | #103 | Joe Buzzetta | Porsche Corp. of America | DNF |
| 26.6.1966 | GP Watkins Glen | 15 | #132 | Herb Wetanson | Herb Wetanson | 7th |
| 26.6.1966 | GP Watkins Glen | 33 | #121 | Scooter Patrick | | DNS |
| 26.6.1966 | Rovaniemi [S/GT] | 37 | #125 | Antti Aarnio-Wihuri | | 1st |
| 26.6.1966 | Avus [S/GT] | 41 | #146 | Ben Pon | Racing Team Holland | 3rd |
| 26.6.1966 | Avus [S/GT] | 42 | #134 | Gijs van Lennep | Racing Team Holland | DNF |
| 26.6.1966 | Avus [S/GT] | 43 | #119 | Gerhard Koch | Gerhard Koch | 2nd |
| 26.6.1966 | Avus [S/GT] | 44 | #124 | Udo Schütz | Scuderia Lufthansa | 1st |
| 26.6.1966 | GP Watkins Glen | 56 | #148 | Ralph Trieschmann | | 6th |
| 26.6.1966 | GP Watkins Glen | 87 | #138 | Bill Bowman | William S. Bowman | DNS |
| 26.6.1966 | SCCA National Kent [Modified] | | #140 | Gary Wright | | DNA |
| 26.6.1966 | GP Watkins Glen | | #104 | Ken Miles | | DNS |
| 3.7.1966 | SCCA National Courtland [CM+DM+EM+FM+GM+AP+BP+CP] | 17 | #133 | Charlie Kolb | | 1st |
| 9.7.1966 | Martini Trophy Silverstone [GT+S2.0] | 28 | #101 | Mike De Udy | | 1st |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 23 | #121 | Doug Revson | Doug Revson | 4th |
| 10.7.1966 | SCCA Regional Cotati [CSR+DSR+ESR+FSR+GSR] | 60 | #136 | Don Wester | | DNA |
| 10.7.1966 | Pepsi-Cola Mont-Tremblant | 111 | #133 | Charlie Kolb | Schroeder | 6th |
| 17.7.1966 | Clubman Suzuka | 15 | #120 | Shintaro Taki | | 1st |
| 17.7.1966 | DARM Norisring [SP] | 15 | #128 | Gerhard Mitter | Porsche KG | 1st |
| 17.7.1966 | DARM Norisring [SP] | 16 | | | Porsche KG | DNA |
| 17.7.1966 | DARM Norisring [SP] | 18 | #124 | Udo Schütz | Scuderia Lufthansa | 2nd |
| 17.7.1966 | DARM Norisring [SP] | 19 | #146 | Ben Pon | Racing Team Holland | 4th |
| 17.7.1966 | DARM Norisring [SP] | 20 | #134 | Gijs van Lennep | Racing Team Holland | 3rd |
| 17.7.1966 | DARM Norisring [SP] | 34 | #117 | Sten Axelsson | Sten Axelsson | DNS |
| 17.7.1966 | SCCA National Mid-Ohio | 56 | #148 | Ralph Trieschmann | | 2nd |
| 17.7.1966 | GP Mugello | 153 | | Bettoja / Bulgari | | DNA |
| 17.7.1966 | GP Mugello | 154 | | Mauro Cintolesi | priv. | DNF |
| 17.7.1966 | GP Mugello | 155 | #102 | Vögele / Siffert | Charles Vögele | DNF |
| 17.7.1966 | GP Mugello | 156 | #101 | De Udy / de Klerk | | 5th |
| 17.7.1966 | GP Mugello | 158 | #119 | Koch / Neerpasch | Porsche System | 1st |
| 17.7.1966 | GP Mugello | 170 | #135 | André Wicky | | DNS |
| 17.7.1966 | GP Mugello | 172 | | Antonio Finiguerra | | DNS |
| 17.7.1966 | SCCA National Mid-Ohio | | #113 | Ed Hugus | | 3rd |
| 24.7.1966 | DARM Hockenheim [GT/SP+1.6] | 1 | #124 | Udo Schütz | | 1st |
| 24.7.1966 | DARM Hockenheim [GT/SP+1.6] | 2 | #146 | Ben Pon | | DNA |
| 24.7.1966 | DARM Hockenheim [GT/SP+1.6] | 3 | #134 | Gijs van Lennep | | DNA |
| 24.7.1966 | DARM Hockenheim [GT/SP+1.6] | 4 | #102 | Charles Vögele | | DNA |
| 24.7.1966 | Fuji Tourist Trophy | 9 | #120 | Shintaro Taki | | DNF |
| 24.7.1966 | DARM Hockenheim [GT/SP+1.6] | 11 | #119 | Gerhard Koch | | DNF |
| 24.7.1966 | SCCA National Connellsville [CSR+DSR+ESR+FSR] | 50 | #113 | Ed Hugus | | DNA |
| 24.7.1966 | SCCA South Carolina | | #106 | Peter Gregg | | 1st |
| 31.7.1966 | USRRC Kent | 2 | #140 | Mike Fisher | | 8th |
| 31.7.1966 | USRRC Kent | 23 | #121 | Doug Revson | | 7th |
| 31.7.1966 | USRRC Kent | 60 | #136 | Don Wester | Porsche Car Pacific Inc. | 6th |
| 7.8.1966 | DARM Nürburgring | 1 | #146 | Ben Pon | Racing-Team Holland | DNF |
| 7.8.1966 | DARM Nürburgring | 2 | #134 | Gijs van Lennep | Racing-Team Holland | DNF |
| 7.8.1966 | DARM Nürburgring | 3 | #117 | Sten Axelsson | Sten Axelsson | 2nd |
| 7.8.1966 | DARM Nürburgring | 4 | #124 | Udo Schütz | Scuderia Lufthansa | 1st |
| 7.8.1966 | DARM Nürburgring | 5 | #101 | Mike De Udy | Mike G. de Udy | DNF |
| 7.8.1966 | DARM Nürburgring | 6 | #135 | André Wicky | André Wicky | 9th |
| 7.8.1966 | DARM Nürburgring | 7 | #119 | Gerhard Koch | Gerhard Koch | 4th |
| 7.8.1966 | Coppa Citta di Enna | 50 | #102 | Charles Vögele | Charles Vögele | 2nd |
| 7.8.1966 | DARM Nürburgring | 88 | | Ulf Norinder | Ulf Norinder | 5th |
| 14.8.1966 | GP Hockenheim | 1 | #152 | Gerhard Mitter | Porsche System Engineering | 1st |
| 14.8.1966 | GP Hockenheim | 2 | #151 | Günther Klass | Porsche System Engineering | 2nd |
| 14.8.1966 | GP Hockenheim | 3 | #153 | Hans Herrmann | Porsche System Engineering | 3rd |
| 14.8.1966 | All Japan Fuji | 20 | #120 | Shintaro Taki | | 1st |
| 14.8.1966 | GP Hockenheim | 21 | #134 | Ben Pon | Ben Pon | DNA |
| 14.8.1966 | GP Hockenheim | 22 | #146 | Gijs van Lennep | Ben Pon/Racing Team Holland | DNF |
| 14.8.1966 | GP Hockenheim | 23 | | Norinder / Bonnier | Rolf Hurtig | NC |
| 14.8.1966 | GP Hockenheim | 24 | #117 | Sten Axelsson | Rolf Hurtig | DNF |
| 14.8.1966 | GP Hockenheim | 25 | #124 | Udo Schütz | Scuderia Lufthansa | 4th |
| 14.8.1966 | GP Hockenheim | 26 | #119 | Gerhard Koch | Scuderia Lufthansa | 5th |
| 14.8.1966 | GP Hockenheim | 27 | #102 | Charles Vögele | Charles Vögele | 9th |
| 14.8.1966 | GP Hockenheim | 28 | #135 | André Wicky | Charles Vögele | 6th |
| 14.8.1966 | GP Hockenheim | 29 | #101 | De Udy | Mike De Udy/Porsche Cars GB | 8th |
| 21.8.1966 | 500 mile Watkins Glen | 1 | #133 | Charlie Kolb | | ?th |