| 7.1.2018 | Daytona Test | 58 | #9520 | Long / Renauer / Jaminet / Nielsen | Wright Motorsports | 36th |
| 7.1.2018 | Daytona Test | 59 | #199539 | Cairoli / Müller / Walls / Proczyk / Smith | Manthey-Racing | 31st |
| 7.1.2018 | Daytona Test | 73 | #WP0ZZZ99ZGS199506 | Lindsey / Bergmeister / Pappas | Park Place Motorsports | 38th |
| 13.1.2018 | 24 h Dubai | 12 | | Klohs / Kern / Jaminet / Müller | Manthey Racing | 2nd |
| 13.1.2018 | 24 h Dubai | 20 | | Hoshino / Ara / Fujii / Kondo | D'station Racing | 13th |
| 13.1.2018 | 24 h Dubai | 911 | | Allemann / Bohn / Renauer / Renauer / Olsen | Herberth Motorsport | 10th |
| 13.1.2018 | 24 h Dubai | 991 | | Mardini / Saelens / Sager / Kunie / Yashiro | Gulf Racing Japan | 68th |
| 28.1.2018 | 24 h Daytona | 58 | #9520 | Renauer / Jaminet / Long / Nielsen | Wright Motorsports | 41st |
| 28.1.2018 | 24 h Daytona | 59 | #199539 | Müller / Cairoli / Proczyk / Walls / Smith | Manthey-Racing | 43rd |
| 28.1.2018 | 24 h Daytona | 73 | #WP0ZZZ99ZGS199506 | Pappas / Bergmeister / Siedler / Lindsey | Park Place Motorsports | 40th |
| 4.2.2018 | 12 h Bathurst | 12 | #WP0ZZZ99ZGS199513 | Calvert-Jones / Long / Campbell / Davison | Ice Break & Virgin Australia | 4th |
| 4.2.2018 | 12 h Bathurst | 540 | | Pappas / Bleekemolen / Stolz / Lieb | Boston Athletic Club | 3rd |
| 4.2.2018 | 12 h Bathurst | 911 | | Dumas / Makowiecki / Werner | Manthey-Racing | 6th |
| 4.2.2018 | 12 h Bathurst | 991 | | Vanthoor / Estre / Bamber | EuroMechanica | 5th |
| 23.2.2018 | Sebring February Test | 58 | #9520 | Long / Nielsen / Renauer / Jaminet | Wright Motorsports | raced |
| 23.2.2018 | Sebring February Test | 73 | #WP0ZZZ99ZGS199506 | Lindsey / Bergmeister / Pappas | Park Place Motorsports | raced |
| 10.3.2018 | 12 h Silverstone | 29 | | Drmić / Eisemann / Lukas | Forch Racing | 2nd |
| 10.3.2018 | 12 h Silverstone | 911 | | Allemann / Bohn / Renauer / Renauer | Herberth Motorsport | 11th |
| 14.3.2018 | SRO Test Paul Ricard | 911 | | Dirk Werner | Manthey Racing | 28th |
| 14.3.2018 | SRO Test Paul Ricard | 991 | | Häring / Brauner | Herberth Motorsport | 45th |
| 17.3.2018 | 12 h Sebring | 58 | #9520 | Nielsen / Jaminet / Long / Renauer | Wright Motorsports | 22nd |
| 17.3.2018 | 12 h Sebring | 73 | #WP0ZZZ99ZGS199506 | Pappas / Bergmeister / Lindsey | Park Place Motorsports | 25th |
| 25.3.2018 | Australian GT Albert Park | 34 | | John Morriss | Motorsport Leasing/RaceRamps | 14th/12th/14th/12th |
| 25.3.2018 | Australian GT Albert Park | 911 | | Martin / Talbot | Walkinshaw GT3 | 5th/6th/3rd/4th |
| 8.4.2018 | 300 km Okayama | 7 | | Fujii / Müller | D'station Racing | 17th |
| 8.4.2018 | 300 km Okayama | 9 | | Kubo / Ishikawa | Pacific with Gulf Racing | 31st |
| 11.4.2018 | LM Cup Paul Ricard Test | 88 | | Baccani / Venerosi | Ebimotors | NC |
| 14.4.2018 | LM Cup Paul Ricard | 88 | | Baccani / Venerosi | Ebimotors | 22nd |
| 15.4.2018 | ADAC GT Oschersleben | 17 | | Bernhard / Estre | KÜS Team75 Bernhard | 13th/7th |
| 15.4.2018 | ADAC GT Oschersleben | 18 | | de Leener / Bachler | KÜS Team75 Bernhard | 25th/12th |
| 15.4.2018 | ADAC GT Oschersleben | 69 | | Slooten / Luhr | IronForce by Ring Police | 22nd/22nd |
| 15.4.2018 | ADAC GT Oschersleben | 99 | | Renauer / Jaminet | Precote Herberth Motorsport | 5th/4th |
| 15.4.2018 | Australian Endurance The Bend | 911 | | Talbot / Martin | Walkinshaw GT3 | 2nd |
| 15.4.2018 | SRO GT Asia Sepang | 911 | | Davies / Stuvik | Craft-Bamboo Racing | 10th/12th |
| 15.4.2018 | SRO GT Asia Sepang | 991 | | Read / O'Young | Craft-Bamboo Racing | 11th/14th |
| 22.4.2018 | 12 h Navarra | 29 | | Drmić / Eisemann / Lukas | Forch Racing | 4th |
| 22.4.2018 | GT Sports Club Monza | 66 | | Jürgen Häring | Herberth Motorsport | DNS |
| 22.4.2018 | 3 h Monza | 911 | | Dumas / Makowiecki / Werner | Manthey-Racing | 45th |
| 22.4.2018 | 12 h Navarra | 911 | | Allemann / Bohn / Renauer | Herberth Motorsport | 10th |
| 22.4.2018 | 3 h Monza | 991 | | Häring / Brauner / Triller | Herberth Motorsport | 38th |
| 22.4.2018 | GT Sports Club Monza | 991 | #WP0ZZZ99ZGS199528 | Edward-Lewis Brauner | Herberth Motorsport | 11th |
| 29.4.2018 | ADAC GT Most | 17 | | Estre / Bernhard | KÜS Team75 Bernhard | 12th/DNF |
| 29.4.2018 | ADAC GT Most | 18 | | de Leener / Bachler | KÜS Team75 Bernhard | 15th/14th |
| 29.4.2018 | ADAC GT Most | 69 | | Slooten / Luhr | IronForce by Ring Police | 18th/24th |
| 29.4.2018 | ADAC GT Most | 99 | | Renauer / Jaminet | Precote Herberth Motorsport | 3rd/3rd |
| 4.5.2018 | 500 km Fuji | 7 | | Fujii / Müller | D'station Racing | 20th |
| 4.5.2018 | 500 km Fuji | 9 | | Kubo / Ishikawa | Pacific with Gulf Racing | 31st |
| 6.5.2018 | 2 h 40 min Mid-Ohio | 16 | #9515 | Schein / Henzler | Wright Motorsports | 32nd |
| 6.5.2018 | 2 h 40 min Mid-Ohio | 58 | #9520 | Nielsen / Long | Wright Motorsports | 28th |
| 12.5.2018 | LM Cup Monza | 88 | | Baccani / Venerosi | Ebimotors | 14th |
| 13.5.2018 | 24 h Nürburgring | 2 | | Jans / Böckmann / Slooten / Luhr | Team GetSpeed Performance | 16th |
| 13.5.2018 | 24 h Nürburgring | 12 | | Klohs / Kern / Olsen / Frommenwiler | Manthey Racing | 18th |
| 13.5.2018 | 24 h Nürburgring | 17 | | Christensen / Cairoli / Bergmeister / Lotterer | KÜS Team75 Bernhard | 21st |
| 13.5.2018 | 24 h Nürburgring | 30 | | Arnold / Müller / Henzler / Campbell | Frikadelli Racing Team | 11th |
| 13.5.2018 | 24 h Nürburgring | 31 | | Siedler / Seefried / Fernandez Laser / Jaminet | Frikadelli Racing Team | DNF |
| 13.5.2018 | Australian GT Sandown Park | 34 | | John Morriss | Motorsport Leasing / RaceRamps | 13th/11th/17th |
| 13.5.2018 | 24 h Nürburgring | 44 | | Bachler / Müller / Ragginger / Werner | Falken Motorsports | 9th |
| 13.5.2018 | SRO GT Asia Buriram | 911 | | Stuvik / Davies | Craft-Bamboo Racing | 11th/8th |
| 13.5.2018 | Australian GT Sandown Park | 911 | | Liam Talbot | Walkinshaw GT3 | 4th/3rd/3rd |
| 13.5.2018 | 24 h Nürburgring | 911 | | Estre / Dumas / Vanthoor / Bamber | Manthey Racing | DNF |
| 13.5.2018 | 24 h Nürburgring | 912 | | Lietz / Pilet / Makowiecki / Tandy | Manthey Racing | 1st |
| 13.5.2018 | SRO GT Asia Buriram | 991 | | Read / O'Young | Craft-Bamboo Racing | 14th/17th |
| 20.5.2018 | 300 km Suzuka | 7 | | Fujii / Müller | D'station Racing | 24th |
| 20.5.2018 | 300 km Suzuka | 9 | | Kubo / Ishikawa | Pacific with Gulf Racing | 28th |
| 20.5.2018 | 3 h Silverstone | 911 | | Makowiecki / Dumas / Werner | Manthey-Racing | 11th |
| 20.5.2018 | 3 h Silverstone | 991 | | Häring / Brauner / Triller | Herberth Motorsport | 33rd |
| 2.6.2018 | 100 min Detroit | 16 | #9515 | Schein / Henzler | Wright Motorsports | 21st |
| 2.6.2018 | Australian Trophy Phillip Island | 34 | | John Morriss | Motorsport Leasing / RaceRamps | 5th/3rd |
| 2.6.2018 | 100 min Detroit | 58 | #9520 | Nielsen / Long | Wright Motorsports | 23rd |