| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 1 | 356 | Donald L. Harris | Donald Harris | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 10 | 356 | Jim Cook | Performance Products | DNA |
| 10.3.1968 | SCCA National Willow Springs [AP+BP+CP+AS] | 14 | 904 | Charles Akly | Charles Akly | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 15 | 356 | Bruce Campbell | Bruce Campbell | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 21 | 356 | Richard Gordon | Richard Gordon | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 33 | 356 | Fred Gillett | Fred Gillett | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 34 | 356 | Pete Buschbaum | Peter Bushbaum | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 45 | 356 | Alex Kisfaludy | Alex Kisfaludy | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 47 | 356 | Jim Kilpatrick | Jim Kilpatrick | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 51 | 356 | Michael Roberts | Cahuenga Automotive | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 55 | 356 | Thomas McBurnie | Thomas Mc Burnie | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 61 | 356 | Forrest Young | Dr. F. Young | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 85 | 356 | Stephen Watson | Stephen Watson | DNA |
| 10.3.1968 | SCCA National Willow Springs [DP+EP] | 98 | 356 | Samuel Baskerville | Precision Motors | DNA |
| 10.3.1968 | SCCA National Willow Springs [AP+BP+CP+AS] | | 904 | Don Wester | Otto Zipper | 1st |
| 22.3.1968 | 3 h Sebring | 1 | 911 | | Brumos Porsche | DNS |
| 22.3.1968 | 3 h Sebring | 2 | 911 | Pete Harrison | Peter Harrison | 4th |
| 22.3.1968 | 3 h Sebring | 3 | 911 | Wetanson / Jennings | Herb Wetanson | 10th |
| 22.3.1968 | 3 h Sebring | 5 | 911 | Richards / Adamowicz | Davidson Enterprises | DNF |
| 22.3.1968 | 3 h Sebring | 6 | 911 | Bert Everett | Holbert's Garages | 1st |
| 22.3.1968 | 3 h Sebring | 8 | 911 S | Fred Baker | Fred Baker | 7th |
| 22.3.1968 | 3 h Sebring | 9 | 911 | John Moore | E. M., Inc. | 2nd |
| 22.3.1968 | 3 h Sebring | 10 | 911 | Williams / Gifford / Campbell | Williams Racing Enterprises | DNF |
| 22.3.1968 | 3 h Sebring | 11 | 911 | Fred Opert | Valvoline/Opert Racing Team | 6th |
| 22.3.1968 | 3 h Sebring | 12 | 911 | Netterstrom / Kelly | Ship Shape Maintenance Co. | 11th |
| 22.3.1968 | 3 h Sebring | 14 | 911 | | Sepp Greger | DNS |
| 22.3.1968 | 3 h Sebring | 15 | 911 S | Lee Cutler | Cutler Motors | DNF |
| 22.3.1968 | 3 h Sebring | 36 | 911 S | Pickett / Bean | Wilbur Pickett | 5th |
| 23.3.1968 | 12 h Sebring | 48 | 907 | Mitter / Stommelen | Porsche Automobile Co. | DNF |
| 23.3.1968 | 12 h Sebring | 49 | 907 | Siffert / Herrmann | Porsche Automobile Co. | 1st |
| 23.3.1968 | 12 h Sebring | 50 | 907 | Scarfiotti / Buzzetta | Porsche Automobile Co. | DNF |
| 23.3.1968 | 12 h Sebring | 51 | 907 | Elford / Neerpasch | Porsche Automobile Co. | 2nd |
| 23.3.1968 | 12 h Sebring | 55 | 906 E | Capriles / Atencio | Raceco | DNF |
| 23.3.1968 | 12 h Sebring | 56 | 910 | Foitek / Lins | Valvoline Oil Company | DNF |
| 23.3.1968 | 12 h Sebring | 57 | 911 R | McDaniel / Sullivan | H.R.H. Engineering | DNS |
| 23.3.1968 | 12 h Sebring | 58 | 907 | Steinemann / Spoerry | Squadra Tartaruga | DNA |
| 23.3.1968 | 12 h Sebring | 58 | 910 | Steinemann / Spoerry | Squadra Tartaruga | 20th |
| 23.3.1968 | 12 h Sebring | 59 | 911 S | Kirby / Johnson | Don Burns V.W. | 7th |
| 23.3.1968 | 12 h Sebring | 60 | 911 S | Harrison / Loomis / Ryan | Gregg Loomis | 8th |
| 23.3.1968 | 12 h Sebring | 61 | 911 S | Duval / Kroll | Jacques Duval | 9th |
| 23.3.1968 | 12 h Sebring | 62 | 911 S | Hanrioud / Garant | Jean Pierre Hanrioud | 13th |
| 23.3.1968 | 12 h Sebring | 63 | 911 Coupé | Greger / Huth | Sepp Greger | DNF |
| 23.3.1968 | 12 h Sebring | 64 | 906 | Bailey / Locke | B.& B. Motors | NC |
| 23.3.1968 | 12 h Sebring | 87 | 906 E | Fred Baker | Fred J. Baker | DNA |
| 23.3.1968 | 12 h Sebring | 88 | 906 E | Frank / Trieschmann | Werner Frank | DNA |
| 23.3.1968 | 12 h Sebring | 90 | 911 | Bencker / Pickett / Newman | William Bencker | DNS |
| 23.3.1968 | 12 h Sebring | 91 | 356 B 2000 GS Carrera 2 | Oest / Feinstein / Newman | Dieter Oest | DNS |
| 23.3.1968 | 12 h Sebring | | 911 S | Bert Everett | Bob Holbert | DNA |
| 23.3.1968 | 12 h Sebring | | 910/8 | Vögele / Moser | Charles Vögele | DNA |
| 24.3.1968 | 4 h Monza [Div.2+3] | 57 | 911 | Dorner / Kremer | | DNF |
| 24.3.1968 | 4 h Monza [Div.2+3] | 58 | 911 | Arthur Blank | | 4th |
| 24.3.1968 | 4 h Monza [Div.2+3] | 59 | 911 | Kremer / Kelleners | | 1st |
| 24.3.1968 | 4 h Monza [Div.2+3] | 60 | 911 | von Hohenzollern / Neuhaus | | 2nd |
| 24.3.1968 | 4 h Monza [Div.2+3] | 61 | 911 | von Wendt / Glemser | | DNF |
| 24.3.1968 | 4 h Monza [Div.2+3] | 65 | 911 | Gianpiero Moretti | | 3rd |
| 24.3.1968 | 4 h Monza [Div.2+3] | 67 | 911 | Licheri / Tabacchi | | 11th |
| 24.3.1968 | 4 h Monza [Div.2+3] | 68 | 911 | Zerbini / Montagnari | | 10th |
| 24.3.1968 | 300 km Fuji | 200 | 906 | Tadashi Sakai | | 1st |
| 24.3.1968 | 4 h Monza [Div.2+3] | | 911 | Zadra / Bonomelli | | DNF |
| 24.3.1968 | 4 h Monza [Div.2+3] | | 911 | Fröhlich / Pon | | DNS |
| 30.3.1968 | Kyalami RAT [Handicap] | 62 | 906 | Clive van Buuren | Ecurie Tomahawk | DNA |
| 30.3.1968 | Kyalami RAT [Handicap] | 65 | 718 RSK | Bruce van der Merwe | Ecurie Tomahawk | DNA |
| 31.3.1968 | 500 km Suzuka | 1 | 906 | Masahiro Hasemi | | 1st |
| 31.3.1968 | USRRC Mexico City | 5 | 906 | Rubin Navoa | | 13th |
| 31.3.1968 | USRRC Mexico City | 88 | 906 E | Werner Frank | | 12th |
| 31.3.1968 | SCCA National Tucson | | 906 | Jack Hinkle | | ?th |
| 6.4.1968 | SCCA Regional Cotati [CP+DP+BS] | 67 | 911 | Don Zacharie | | DNA |
| 6.4.1968 | SCCA Regional Cotati [ASR+BSR+CSR] | 71 | | Bill Northam | | DNA |
| 6.4.1968 | SCCA Regional Cotati [CP+DP+BS] | 99 | 356 | Del Bolton | | DNA |
| 7.4.1968 | 6 h Barcelona | 1 | 911 | del Vilar / Sagnier | Escuderia Montjuic | DNF |
| 7.4.1968 | 6 h Brands Hatch | 1T | 907 | Jochen Neerpasch | Porsche System Engineering Limited | T-car |
| 7.4.1968 | 6 h Barcelona | 3 | 910 | Fitzpatrick / Rollinson | Escuderia Montjuic | 2nd |
| 7.4.1968 | 6 h Barcelona | 5 | 910 | Hanrioud / Wicky | Escuderia Montjuic | 3rd |
| 7.4.1968 | 6 h Barcelona | 11 | 906 | Fernandez / Heiderich | Escuderia Montjuic | 4th |
| 7.4.1968 | 6 h Brands Hatch | 21 | 906 | Liddell / Bradley | W. Bradley | 12th |
| 7.4.1968 | 6 h Brands Hatch | 22 | 906 | Cabral / Duval | Michael G. de'Udy | 19th |
| 7.4.1968 | 6 h Brands Hatch | 23 | 906 | Ashmore / Edmonds | Jeffrey Edmonds | 21st |
| 7.4.1968 | 6 h Brands Hatch | 28 | 906 | Hone / Harris / Hine | Mefco Racing Opposite Lock Club | 16th |
| 7.4.1968 | 6 h Brands Hatch | 29 | 906 | Delmar-Morgan / Walton | J. Delmar-Morgan | 22nd |
| 7.4.1968 | 6 h Barcelona | 31 | 911 S | Spero / Beuttler | Heuer Time Ltd. | 10th |
| 7.4.1968 | 6 h Barcelona | 33 | 911 S | Palau Ribes / "Pedro" | "Pedro" | 7th |
| 7.4.1968 | Le Mans Test | 33 | 907 LH | Rolf Stommelen | Squadra Tartaruga | 3rd |
| 7.4.1968 | Le Mans Test | 34 | 908 | Rolf Stommelen | Porsche System Engineering | 2nd |
| 7.4.1968 | 6 h Barcelona | 35 | 911 | Fernandez / Juncadella | Escuderia Montjuic | 6th |
| 7.4.1968 | Le Mans Test | 35 | 908 | Herbert Linge | Porsche System Engineering | 7th |
| 7.4.1968 | 6 h Brands Hatch | 36 | 907 | Elford / Neerpasch | Porsche System Engineering Limited | 3rd |
| 7.4.1968 | 6 h Brands Hatch | 37 | 907 | Siffert / Herrmann | Porsche System Engineering Limited | DNF |
| 7.4.1968 | 6 h Brands Hatch | 38 | 907 | Mitter / Scarfiotti | Porsche System Engineering Limited | 2nd |
| 7.4.1968 | Le Mans Test | 45 | 911 T | | Jean-Peirre Gaban | DNA |
| 7.4.1968 | 6 h Brands Hatch | 45 | 910 | Steinemann / Spoerry | Hart Ski Racing Team | 7th |
| 7.4.1968 | 6 h Brands Hatch | 46 | 910 | van Lennep / Pon | Ben M. Pon | DNF |
| 7.4.1968 | Le Mans Test | 46 | 911 S | Buchet / Laurent / Farjon | Auguste Veuillet | 13th |
| 7.4.1968 | 6 h Brands Hatch | 53 | 910 | Lins / Foitek | Valvoline Racing Team | 9th |
| 7.4.1968 | 6 h Barcelona | 57 | 356 B Super 90 | Castellví / Sans | Pepe Castellvi | DNS |
| 7.4.1968 | Le Mans Test | 70 | 911 T | Willy Meier | Wicky Racing Team | 14th |
| 7.4.1968 | DARM Hockenheim | | 911 S | Günther Bühl | | ?th |
| 7.4.1968 | Le Mans Test | | 911 R | Robert Buchet | | DNF |
| 7.4.1968 | DARM Hockenheim | | 356 B Super 90 | Peter Schmidt | | ?th |
| 7.4.1968 | DARM Hockenheim | | 911 S | Hubertus von der Borch | | ?th |
| 7.4.1968 | DARM Hockenheim | | 911 S | Ernst Kraus | | 1st |