| 1.1.1966 | GP East London | 72 | 904 GTS | Mike de Udy | M. d'Udy | 5th |
| 1.1.1966 | East London [T/GT+1.6] | 72 | 904 GTS | Mike de Udy | M. d'Udy | DNA |
| 8.1.1966 | Killarney | 72 | 904 GTS | Mike de Udy | | 4th |
| 6.2.1966 | 24 h Daytona | 10 | 904/8 Bergspyder | Fulp / Kolb / Jennings / Rutan | John Fulp | DNA |
| 6.2.1966 | 24 h Daytona | 11 | 904 GTS | Victor Merino | Victor Merino | DNA |
| 6.2.1966 | 24 h Daytona | 14 | 904 GTS | Gregg / Drolsom | Brumos Porsche Florida | 10th |
| 6.2.1966 | 24 h Daytona | 15 | 906 | Herrmann / Linge | Porsche System Engineering | 6th |
| 6.2.1966 | 24 h Daytona | 16 | 904 GTS | Mitter / Buzzetta | Porsche System Engineering | 7th |
| 6.2.1966 | 24 h Daytona | 17 | 904 GTS | Klass / Schütz | Porsche System Engineering | 8th |
| 6.2.1966 | 24 h Daytona | 18 | 911 Coupé 901 | Ryan / Coleman / Bencker | RBM Motors | 16th |
| 6.2.1966 | 24 h Daytona | 19 | 356 B Super 90 | Forlong / Dieas / McClain | Dave McClain | DNF |
| 6.2.1966 | 24 h Daytona | 20 | 904 GTS | Posey / Haynes / Theodoracopulos | Sam Posey | 11th |
| 6.2.1966 | 24 h Daytona | 34 | 904 GTS | Drolsom / Mahoney | George Drolsom | DNA |
| 6.2.1966 | 24 h Daytona | 47 | 904 GTS | Lane / Sesslar | David Lane | DNF |
| 20.2.1966 | SCCA Regional Willow Springs [CM+DM+EM+FM+GM+AP+BP+CP+DP] | | 904 GTS | Dennis Harrison | | 2nd |
| 27.2.1966 | SCCA National West Palm Beach [CM+DM+EM+FM+GM+AP+BP] | 10 | 904/8 Bergspyder | Charlie Kolb | | 1st |
| 27.2.1966 | Sandown | | 904/6 Spyder | Alan Hamilton | | 2nd |
| 27.2.1966 | SCCA National Phoenix [BP+CP+DP+EP] | | 356 Carrera | Dick Smith | | ?th |
| 27.2.1966 | SCCA National West Palm Beach [CM+DM+EM+FM+GM+AP+BP] | | 904 GTS | Peter Gregg | | ?th |
| 27.2.1966 | SCCA National West Palm Beach [DP+EP+AS+BS] | | 356 | Harold Williamson | | 3rd |
| 6.3.1966 | BRSCC Brands Hatch [Special GT] | | 904 GTS | Martin Hone | | 7th |
| 6.3.1966 | SCCA Regional Sebastian [Main] | | 904/8 Bergspyder | Charlie Kolb | | 1st |
| 7.3.1966 | Australian TT | | 904/6 Spyder | Alan Hamilton | | 2nd |
| 20.3.1966 | SCCA National Willow Springs [AP+BP+CP+DP] | | 904 GTS | Dennis Harrison | | 3rd |
| 20.3.1966 | SCCA National Willow Springs [AP+BP+CP+DP] | | 356 Carrera | Dick Smith | | ?th |
| 20.3.1966 | Marlboro [SR+AP+BP+CP+DP] | | 356 | Mike Delaney | | 2nd |
| 20.3.1966 | Marlboro [SR+AP+BP+CP+DP] | | 356 | John Fiske | | 3rd |
| 26.3.1966 | 12 h Sebring | 47 | 904 GTS | Cunningham / Jordan / Fitch | Briggs Cunningham | DNF |
| 26.3.1966 | 12 h Sebring | 48 | 906 | Wester / Patrick | Otto Zipper | DNF |
| 26.3.1966 | 12 h Sebring | 49 | 906 | Siffert / Vögele | Charles Vögele | 6th |
| 26.3.1966 | 12 h Sebring | 50 | 906 | Underwood / Hugus | Ed Hugus | 8th |
| 26.3.1966 | 12 h Sebring | 51 | 911 Coupé 901 | Ryan / Coleman | RBM Motors | 20th |
| 26.3.1966 | 12 h Sebring | 52 | 906 | Herrmann / Buzzetta / Mitter | Porsche System Engineering | 4th |
| 26.3.1966 | 12 h Sebring | 53 | 906 | Mitter / Klass | Porsche System Engineering | DNF |
| 26.3.1966 | 12 h Sebring | 54 | 904 GTS | Follmer / Gregg | Porsche Germany | 7th |
| 26.3.1966 | 12 h Sebring | 55 | 904 GTS | Schütz / Glemser | Porsche System Engineering | DNF |
| 26.3.1966 | 12 h Sebring | 56 | 904 GTS | Duval / Kroll | Jacques Duval | 16th |
| 26.3.1966 | 12 h Sebring | 57 | 904 GTS | Ripley / Wetanson | Wetanson & Ripley | DNF |
| 26.3.1966 | 12 h Sebring | 87 | 904/8 Bergspyder | Kolb / Fulp | Keymo Motors Corporation | DNF |
| 26.3.1966 | 12 h Sebring | | 904 GTS | Gregg / Barber | Brumos Porsche | DNA |
| 27.3.1966 | National Zolder | | 904 GTS | Jean-Pierre Gaban | | 2nd |
| 27.3.1966 | SCCA Regional Newport [Main] | | 356 Speedster | Larry Eyerly | | ?th |
| 3.4.1966 | SCCA Regional Kirker Creek [AP+BP+CP] | 6 | 904 GTS | Don Wester | | DNA |
| 3.4.1966 | SCCA National Marlboro [AP+BP] | 22 | 904 GTS | Sam Posey | | DNA |
| 3.4.1966 | Le Mans Test | 27 | 906 LH | Herbert Linge | Porsche System Engineering | 12th |
| 3.4.1966 | SCCA National Marlboro [CP+DP] | 28 | 356 | Bob Bailey | | DNA |
| 3.4.1966 | Le Mans Test | 28 | | | | DNA |
| 3.4.1966 | Le Mans Test | 29 | 906 | Peter Nöcker | Porsche System Engineering | 11th |
| 3.4.1966 | Le Mans Test | 31 | 906 | Robert Buchet | Porsche System Engineering | 13th |
| 3.4.1966 | Le Mans Test | 32 | 911 | Linge / von Hanstein / Kerguen | Porsche System Engineering | 21st |
| 3.4.1966 | SCCA Regional Kirker Creek [CM+DM+EM+FM+GM+DP] | 33 | 356 B Carrera Abarth GTL | Jim Wellington | | DNA |
| 3.4.1966 | SCCA National Marlboro [CP+DP] | 34 | 356 Carrera | John Kelly | | 1st |
| 3.4.1966 | SCCA Regional Kirker Creek [AP+BP+CP] | 51 | 356 Carrera | Forrest Young | Forest Young | DNA |
| 3.4.1966 | SCCA National Marlboro [CP+DP] | 77 | 356 Carrera | Bruce Jennings | | 2nd |
| 3.4.1966 | SCCA National Marlboro [CSR+DSR+ESR+FSR+GSR+HSR] | 79 | 718 RSK | Fred Touchton | | DNA |
| 3.4.1966 | SCCA National Marlboro [CP+DP] | 79 | 356 Carrera | | | DNA |
| 3.4.1966 | ICNSCC Westwood [Improved] | | 356 B Super 90 | Gary Wright | | 3rd |
| 9.4.1966 | 6 h South Africa | | 718 RS 61 | van Buuren / de Klerk | Ecurie Tomahawk | 1st |
| 11.4.1966 | BARC Castle Combe [GT] | 82 | 906 | Mike de Udy | | 1st |
| 11.4.1966 | BARC Castle Combe [Sports] | 82 | 906 | Mike de Udy | | 1st |
| 11.4.1966 | BRSCC Mallory Park [GT] | 92 | 904 GTS | Jonny Reid | Mefco Racing | raced |
| 16.4.1966 | LCCC Oulton Park [Sports/GT] | 144 | 904 GTS | Hone / Mould | Mefco Racing | DNA |
| 17.4.1966 | SCCA National Fernandina Beach [CM+DM+EM+FM+AP+BP+CP] | | 906 | Peter Gregg | | 2nd |
| 17.4.1966 | SCCA National Vineland [CP+HM] | | 356 Carrera | John Kelly | | 1st |
| 17.4.1966 | SCCA National Fernandina Beach [CM+DM+EM+FM+AP+BP+CP] | | 356 B Carrera Abarth GTL | Marty Gifford | | ?th |
| 17.4.1966 | SCCA National Vineland [CP+HM] | | 356 Carrera | Bruce Jennings | | 2nd |
| 17.4.1966 | SCCA National Vineland [AP+BP] | | 904 GTS | Sam Posey | | DNF |
| 24.4.1966 | USRRC Las Vegas | 0 | 904 GTS | Norm Smith | Norman Smith | 16th |
| 24.4.1966 | Las Vegas [AP+BP+CP+DP] | 0 | 904 GTS | Norm Smith | | 3rd |
| 24.4.1966 | SM Knutstorp [SP2.0] | 1 | 906 | Sten Axelsson | Botkyrka MK | 2nd |
| 24.4.1966 | SM Knutstorp [GT2.0] | 6 | Roadster S | Knut Johansen | | DNA |
| 24.4.1966 | SM Knutstorp [GT2.0] | 9 | | Leif Hansen | | DNA |
| 24.4.1966 | SM Knutstorp [GT2.0] | 10 | 356 B Super 90 GT | Sten Frohde | KAK/U | 6th |
| 24.4.1966 | SM Knutstorp [GT2.0] | 11 | 911 | Kay Honkanen | | DNA |
| 24.4.1966 | USRRC Las Vegas | 49 | 904 GTS | Dennis Harrison | Dennis Harrison | DNA |
| 24.4.1966 | USRRC Las Vegas | 88 | 906 | Jerry Titus | Vasek Polak Porsche | DNA |
| 24.4.1966 | Zandvoort | 158 | 906 | Gijs van Lennep | | ?th |
| 24.4.1966 | MWCSCC Lynndale Farms [Main] | | 356 | Merv Rosen | | ?th |
| 24.4.1966 | SCCA Regional Shelton [Main] | | 904 GTS | Wade Carter | | DNS |
| 1966 | Alcaniz | 26 | 906 | Fernando de Baviera | | 1st |
| 1966 | Riverside | 50 | 906 | Ed Hugus | | raced |
| 1966 | SCCA National Ponta Verda | | 906 | Charlie Kolb | | DNF |
| 1966 | SCCA National Moroso | | 906 | Charlie Kolb | | ?th |