| 13.5.2018 | 24 h Nürburgring | 136 | Cayman S | Schicht / Schäfer / Eichner / Imholz | Team Mathol Racing e.V. | DNF |
| 13.5.2018 | 24 h Nürburgring | 137 | Cayman S | Held / Falcon / Waldhausen / von Bär | Team Mathol Racing e.V. | 85th |
| 13.5.2018 | 24 h Nürburgring | 138 | 991 Carrera | Köhler / König / Schneider / Böhm | Black Falcon Team TMD Friction | 57th |
| 13.5.2018 | 24 h Nürburgring | 143 | Cayman | Zünd / Teichert / Attallah / Palluth | Pixum Team Adrenalin Motorsport | 67th |
| 13.5.2018 | 24 h Nürburgring | 144 | Cayman | Büllesbach / Schettler / Smyrlis / Arimon | Pixum Team Adrenalin Motorsport | 64th |
| 13.5.2018 | 24 h Nürburgring | 145 | Cayman (Typ 981) | Eastwood / Andlauer | Care For Climate | DNA |
| 13.5.2018 | 24 h Nürburgring | 146 | Cayman | Fukuda / Griesemann / Mönch / Quante | GTronix 360 Team mcchip-dkr | DNF |
| 13.5.2018 | 24 h Nürburgring | 148 | Cayman | Finck / Moetefindt / Munhowen | ADAC Team Weser-Ems e.V. | DNF |
| 13.5.2018 | 24 h Nürburgring | 149 | Cayman | Krumbach / Timbal / Bollerslev / Weiss | Porsche Club Ticino | 73rd |
| 13.5.2018 | 24 h Nürburgring | 236 | Cayman | Bohr / von Danwitz / Jung / Rönnefarth | Teichmann Racing | 37th |
| 13.5.2018 | 24 h Nürburgring | 301 | Cayman GT4 Clubsport (Typ 981) | Geisselhart / Flaig / "Maximilian" / Nytroeen | Teichmann Racing | 49th |
| 13.5.2018 | 24 h Nürburgring | 302 | Cayman GT4 Clubsport (Typ 981) | Rebhan / Mölig / Müller / Kranz | Mühlner Motorsport | 28th |
| 13.5.2018 | 24 h Nürburgring | 303 | Cayman GT4 Clubsport (Typ 981) | von Gartzen / von Gartzen / Hoppe / Kranz | Mühlner Motorsport | 29th |
| 13.5.2018 | 24 h Nürburgring | 304 | Cayman GT4 Clubsport (Typ 981) | "Maximilian" / Geisselhart | Teichmann Racing | DNA |
| 13.5.2018 | 24 h Nürburgring | 305 | Cayman GT4 Clubsport (Typ 981) | Beyer / Akata / Hewer / Simon | Securtal Sorg Rennsport | DNF |
| 13.5.2018 | 24 h Nürburgring | 306 | Cayman GT4 Clubsport (Typ 981) | Krämer / Tönges / Veremenko / Wißkirchen | | 44th |
| 13.5.2018 | 24 h Nürburgring | 307 | Cayman GT4 Clubsport (Typ 981) | Keilwerth / Montana / Weber / Vazquez | Team Mathol Racing e.V. | 59th |
| 13.5.2018 | 24 h Nürburgring | 308 | Cayman GT4 Clubsport (Typ 981) | Herbst / Stengel / Günther / Nittel | | DNF |
| 13.5.2018 | 24 h Nürburgring | 309 | Cayman GT4 Clubsport (Typ 981) | Cramer / Chapel / Henzel / Vinke | Team Mathol Racing e.V. | 53rd |
| 13.5.2018 | 24 h Nürburgring | 310 | Cayman GT4 Clubsport (Typ 981) | Assmann / Egbert / Jacoma / Riemer | Schmickler Performance | DNF |
| 13.5.2018 | 24 h Nürburgring | 320 | 991 GT3 Cup II | von Löwis of Menar / "Smudo" / Schellhaas / Duffner | Care For Climate | 27th |
| 13.5.2018 | 24 h Nürburgring | 420 | Cayman | Blickle / Steinhaus / Eastwood / Kiefer | Care For Climate | 33rd |
| 13.5.2018 | 24 h Nürburgring | 718 | Cayman | Zensen / Peitzmeier / Bretschneider / Fürsch | | DNF |
| 13.5.2018 | 24 h Nürburgring | 911 | 991 GT3 R | Estre / Dumas / Vanthoor / Bamber | Manthey Racing | DNF |
| 13.5.2018 | 24 h Nürburgring | 912 | 991 GT3 R | Lietz / Pilet / Makowiecki / Tandy | Manthey Racing | 1st |
| 20.5.2018 | 300 km Suzuka | 7 | 991 GT3 R | Fujii / Müller | D'station Racing | 24th |
| 20.5.2018 | 300 km Suzuka | 9 | 991 GT3 R | Kubo / Ishikawa | Pacific with Gulf Racing | 28th |
| 20.5.2018 | GT4 Central Cup Red Bull Ring | 41 | Cayman GT4 Clubsport MR | Kremer / Schöll | Allied Racing | 6th/DNF |
| 20.5.2018 | GT4 Central Cup Red Bull Ring | 43 | Cayman GT4 Clubsport MR | Kasperlik / Severs | Allied Racing | 13th/1st |
| 20.5.2018 | 3 h Silverstone | 911 | 991 GT3 R | Makowiecki / Dumas / Werner | Manthey-Racing | 11th |
| 20.5.2018 | 3 h Silverstone | 991 | 991 GT3 R | Häring / Brauner / Triller | Herberth Motorsport | 33rd |
| 2.6.2018 | Australian Trophy Phillip Island | 12 | 991 GT3 Cup | Seidler / Seidler | Seidler Group | DNF/NC |
| 2.6.2018 | 100 min Detroit | 16 | 991 GT3 R | Schein / Henzler | Wright Motorsports | 21st |
| 2.6.2018 | Australian Trophy Phillip Island | 34 | 991 GT3 R | John Morriss | Motorsport Leasing / RaceRamps | 5th/3rd |
| 2.6.2018 | 100 min Detroit | 58 | 991 GT3 R | Nielsen / Long | Wright Motorsports | 23rd |
| 3.6.2018 | British LMP3 Spa | 46 | 991 GT3 Cup I | Mike Sellar | MAS Motorsport | DNA |
| 3.6.2018 | Le Mans Test | 56 | 991 RSR II | Bergmeister / Lindsey / Perfetti | Team Project 1 | 56th |
| 3.6.2018 | GT Sports Club Paul Ricard | 66 | 991 GT3 R | Jürgen Häring | Herberth Motorsport | 6th |
| 3.6.2018 | Le Mans Test | 77 | 991 RSR II | Campbell / Andlauer / Ried | Dempsey - Proton Racing | 46th |
| 3.6.2018 | Le Mans Test | 80 | 991 RSR II | Babini / Maris / Nielsen | Ebimotors | 59th |
| 3.6.2018 | Le Mans Test | 86 | 991 RSR II | Davison / Barker / Wainwright | Gulf Racing UK | 54th |
| 3.6.2018 | Le Mans Test | 88 | 991 RSR II | Cairoli / Al Qubaisi / Roda | Dempsey - Proton Racing | 49th |
| 3.6.2018 | Le Mans Test | 91 | 991 RSR II | Bruni / Makowiecki / Lietz | Porsche GT Team | 32nd |
| 3.6.2018 | Le Mans Test | 92 | 991 RSR II | Christensen / Vanthoor / Estre / Werner | Porsche GT Team | 37th |
| 3.6.2018 | Le Mans Test | 93 | 991 RSR II | Pilet / Bamber / Tandy / Werner | Porsche GT Team | 31st |
| 3.6.2018 | Le Mans Test | 94 | 991 RSR II | Müller / Dumas / Bernhard | Porsche GT Team | 44th |
| 3.6.2018 | Le Mans Test | 99 | 991 RSR II | Long / Pumpelly / Pappas | Proton Competition | 51st |
| 3.6.2018 | Australian Endurance Phillip Island | 911 | 991 GT3 R | Talbot / Martin | Walkinshaw GT3 | DNF |
| 3.6.2018 | 1000 km Paul Ricard | 911 | 991 GT3 R | Makowiecki / Dumas / Werner | Manthey-Racing | 10th |
| 3.6.2018 | 1000 km Paul Ricard | 991 | 991 GT3 R | Häring / Brauner / Triller | Herberth Motorsport | 34th |
| 3.6.2018 | GT Sports Club Paul Ricard | 991 | 991 GT3 R | Edward-Lewis Brauner | Herberth Motorsport | 9th |
| 10.6.2018 | ADAC GT Red Bull Ring | 17 | 991 GT3 R I | Bernhard / Estre | KÜS Team75 Bernhard | 4th/DNF |
| 10.6.2018 | ADAC GT Red Bull Ring | 18 | 991 GT3 R I | de Leener / Bachler | KÜS Team75 Bernhard | 15th/29th |
| 10.6.2018 | ADAC GT Red Bull Ring | 69 | 991 GT3 R I | Slooten / Luhr | IronForce by Ring Police | 25th/27th |
| 10.6.2018 | ADAC GT Red Bull Ring | 99 | 991 GT3 R I | Renauer / Jaminet | Precote Herberth Motorsport | 6th/9th |
| 16.6.2018 | Road to Le Mans | 88 | 991 GT3 R | Baccani / Venerosi | Ebimotors | 34th/35th |
| 17.6.2018 | 24 h Le Mans | 56 | 991 RSR II | Bergmeister / Lindsey / Perfetti | Team Project 1 | 34th |
| 17.6.2018 | 24 h Le Mans | 77 | 991 RSR II | Campbell / Andlauer / Ried | Dempsey - Proton Racing | 25th |
| 17.6.2018 | 24 h Le Mans | 80 | 991 RSR II | Babini / Nielsen / Maris | Ebimotors | 31st |
| 17.6.2018 | 24 h Le Mans | 86 | 991 RSR II | Wainwright / Barker / Davison | Gulf Racing | 40th |
| 17.6.2018 | 24 h Le Mans | 88 | 991 RSR II | Cairoli / Al Qubaisi / Roda | Dempsey - Proton Racing | DNF |
| 17.6.2018 | 24 h Le Mans | 91 | 991 RSR II | Lietz / Bruni / Makowiecki | Porsche GT Team | 16th |
| 17.6.2018 | 24 h Le Mans | 92 | 991 RSR II | Christensen / Estre / Vanthoor | Porsche GT Team | 15th |
| 17.6.2018 | 24 h Le Mans | 93 | 991 RSR II | Pilet / Tandy / Bamber | Porsche GT Team | 27th |
| 17.6.2018 | 24 h Le Mans | 94 | 991 RSR II | Dumas / Bernhard / Müller | Porsche GT Team | DNF |
| 17.6.2018 | 24 h Le Mans | 99 | 991 RSR II | Long / Pappas / Pumpelly | Proton Competition | 29th |
| 17.6.2018 | Italian GT Misano | 163 | 997 GT3 Cup | Merendino / Di Benedetto | Island Motorport | 9th/13th |
| 17.6.2018 | Italian GT Misano | 169 | 991 GT3 Cup | Nicolosi / La Mazza | Ebimotors | 12th/15th |
| 17.6.2018 | Italian GT Misano | 176 | 997 GT3 Cup | Pisani / Sauto | Eugenio Pisani | 11th/14th |
| 24.6.2018 | GT4 Euro Misano | 13 | Cayman GT4 Clubsport MR | Bethke / Basseng | Schwede Motorsport | DNF/36th |
| 24.6.2018 | GT4 Euro Misano | 15 | Cayman GT4 Clubsport MR | Schulte / Schraml | Schwede Motorsport | DNF/21st |
| 24.6.2018 | GT4 Euro Misano | 42 | Cayman GT4 Clubsport MR | Bölting / Schöll | Allied-Racing | 32nd/DNS |
| 24.6.2018 | GT4 Euro Misano | 43 | Cayman GT4 Clubsport MR | Kasperlik / Still | Allied-Racing | DNF/14th |
| 24.6.2018 | GT Sports Club Misano | 66 | 991 GT3 R | Jürgen Häring | Herberth Motorsport | 4th |
| 24.6.2018 | GT4 Euro Misano | 75 | 997 GT4 | Fondi / Cerati | Autorlando Sport | 21st/26th |
| 24.6.2018 | GT4 Euro Misano | 76 | 997 GT4 | Ghezzi / Giovanelli | Autorlando Sport | 12th/19th |
| 24.6.2018 | GT Sports Club Misano | 100 | 991 GT3 R | Bernd Kleinbach | Attempto Racing | 11th |
| 24.6.2018 | GT4 Euro Misano | 222 | Cayman GT4 Clubsport MR | Niki Leutwiler | Porsche Zentrum Oberer Zürichsee by TFT Racing | 14th/12th |
| 1.7.2018 | 300 km Chang | 7 | 991 GT3 R | Fujii / Müller | D'station Racing | 21st |
| 1.7.2018 | 300 km Chang | 9 | 991 GT3 R | Kubo / Ishikawa | Pacific with Gulf Racing | 29th |
| 1.7.2018 | SRO GT Asia Suzuka | 11 | Cayman GT4 Clubsport MR | Lee / Fong | TTR Team SARD | 25th/27th |
| 1.7.2018 | SRO GT Asia Suzuka | 17 | Cayman GT4 Clubsport MR | Chou / Chang | Taiwan Top Speed Racing Team | 24th/25th |
| 1.7.2018 | SRO GT Asia Suzuka | 33 | 991 GT3 R | Yamano / Yamano | Porsche Team EBI | 12th/10th |
| 1.7.2018 | GT4 Central Cup Nürburgring | 41 | Cayman GT4 Clubsport MR | Bölting / Kremer | Allied Racing | 10th/9th |
| 1.7.2018 | GT4 Central Cup Nürburgring | 43 | Cayman GT4 Clubsport MR | Schöll / Severs | Allied Racing | 5th/2nd |
| 1.7.2018 | SRO GT Asia Suzuka | 47 | 991 GT3 R | Hoshino / Ara | D'Station Racing | 13th/13th |
| 1.7.2018 | 6 h Watkins Glen | 58 | 991 GT3 R | Long / Renauer / Nielsen | Wright Motorsports | 28th |
| 1.7.2018 | 6 h Watkins Glen | 73 | 991 GT3 R | Lindsey / Bergmeister | Park Place Motorsports | 25th |
| 1.7.2018 | 6 h Watkins Glen | 911 | 991 RSR II | Pilet / Tandy | Porsche GT Team | 15th |
| 1.7.2018 | SRO GT Asia Suzuka | 911 | 991 GT3 R | Davies / Stuvik | Craft-Bamboo Racing | 2nd/5th |
| 1.7.2018 | 6 h Watkins Glen | 912 | 991 RSR II | Bamber / Vanthoor | Porsche GT Team | 16th |
| 1.7.2018 | SRO GT Asia Suzuka | 991 | 991 GT3 R | Read / O'Young | Craft-Bamboo Racing | 28th/9th |
| 3.7.2018 | Spa Test | 117 | 991 GT3 R | Bernhard / Bamber / Vanthoor | KÜS Team75 Bernhard | 8th |
| 3.7.2018 | Spa Test | 540 | 991 GT3 R | Pappas / Bleekemolen / Lieb / Miller | Black Swan Racing | 44th |
| 3.7.2018 | Spa Test | 911 | 991 GT3 R | Dumas / Makowiecki / Werner | Manthey-Racing | 14th |
| 3.7.2018 | Spa Test | 991 | 991 GT3 R | Häring / Brauner / Triller / Renauer | Herberth Motorsport | 2nd |
| 8.7.2018 | 2 h 40 min Mosport | 16 | 991 GT3 R | Schein / Henzler | Wright Motorsports | 28th |
| 8.7.2018 | 2 h 40 min Mosport | 58 | 991 GT3 R | Nielsen / Long | Wright Motorsports | 27th |
| 8.7.2018 | 2 h 40 min Mosport | 911 | 991 RSR II | Tandy / Pilet | Porsche GT Team | 13th |
| 8.7.2018 | 2 h 40 min Mosport | 912 | 991 RSR II | Vanthoor / Bamber | Porsche GT Team | 15th |