| 5.5.2018 | 6 h Spa | 38 | #25 | Tung / Aubry / Richelmi | Jackie Chan DC Racing | 7th |
| 6.5.2018 | 2 h 40 min Mid-Ohio | 38 | #16 | French / Masson | Performance Tech Motorsports | 11th |
| 6.5.2018 | 2 h 40 min Mid-Ohio | 54 | #31 | Bennett / Braun | CORE autosport | 13th |
| 6.5.2018 | 2 h 40 min Mid-Ohio | 85 | #30 | Alon / Trummer | JDC-Miller Motorsports | 12th |
| 6.5.2018 | 2 h 40 min Mid-Ohio | 99 | #02 | Goikhberg / Simpson | JDC-Miller Motorsports | 7th |
| 13.5.2018 | 4 h Monza | 21 | #10 | Hanley / Lapierre / Hedman | DragonSpeed | 4th |
| 13.5.2018 | 4 h Monza | 24 | #23 | Nato / Pla / Petit | Racing Engineering | 5th |
| 13.5.2018 | 4 h Monza | 26 | #26 | Rusinov / Pizzitola / Vergne | G-Drive Racing | 1st |
| 13.5.2018 | 4 h Monza | 28 | | Lafargue / Chatin / Rojas | IDEC Sport | 3rd |
| 13.5.2018 | 4 h Monza | 29 | #14 | Ragues / Panciatici / Jamin | Duqueine Engineering | 6th |
| 13.5.2018 | 4 h Monza | 31 | | Cullen / Menezes / Newey | APR - Rebellion Racing | 8th |
| 13.5.2018 | 4 h Monza | 33 | | Perrodo / Duval / Vaxiviere | TDS Racing | 2nd |
| 13.5.2018 | 4 h Monza | 39 | #05 | Cougnaud / Gommendy / Hirschi | Graff | DNF |
| 13.5.2018 | 4 h Monza | 40 | | Guibbert / Allen / Gutierrez | G-Drive Racing | DNF |
| 2.6.2018 | 100 min Detroit | 54 | #31 | Bennett / Braun | CORE autosport | 12th |
| 2.6.2018 | 100 min Detroit | 85 | #30 | Alon / Trummer | JDC-Miller Motorsports | 10th |
| 2.6.2018 | 100 min Detroit | 99 | #02 | Goikhberg / Simpson | JDC-Miller Motorsports | 11th |
| 3.6.2018 | Le Mans Test | 26 | #26 | Vergne / Rusinov / Imperatori / Pizzitola | G-Drive Racing | 13th |
| 3.6.2018 | Le Mans Test | 28 | #09 | Perrodo / Vaxiviere | TDS Racing | 14th |
| 3.6.2018 | Le Mans Test | 31 | #03 | Berthon / Gonzalez / Maldonado | Dragonspeed | 9th |
| 3.6.2018 | Le Mans Test | 37 | #17 | Jaafar / Jeffri / Tan | Jackie Chan DC Racing | 21st |
| 3.6.2018 | Le Mans Test | 38 | #25 | Tung / Richelmi / Aubry | Jackie Chan DC Racing | 20th |
| 3.6.2018 | Le Mans Test | 39 | #05 | Gommendy / Capillaire / Hirschi / Cougnaud | Graff-SO24 | 17th |
| 3.6.2018 | Le Mans Test | 40 | #24 | Guibbert / Allen / Gutierrez | G-Drive Racing | 19th |
| 3.6.2018 | Le Mans Test | 48 | #20 | Chatin / Rojas | IDEC Sport | 10th |
| 17.6.2018 | 24 h Le Mans | 24 | #23 | Norman Nato | Repsol Racing Engineering | DNA |
| 17.6.2018 | 24 h Le Mans | 26 | #26 | Rusinov / Pizzitola / Vergne | G-Drive Racing | DQ |
| 17.6.2018 | 24 h Le Mans | 28 | #09 | Perrodo / Duval / Vaxiviere | TDS Racing | DQ |
| 17.6.2018 | 24 h Le Mans | 31 | #03 | Gonzalez / Maldonado / Berthon | Dragonspeed | 9th |
| 17.6.2018 | 24 h Le Mans | 37 | #17 | Jaafar / Jeffri / Tan | Jackie Chan DC Racing | 8th |
| 17.6.2018 | 24 h Le Mans | 38 | #25 | Tung / Richelmi / Aubry | Jackie Chan DC Racing | 10th |
| 17.6.2018 | 24 h Le Mans | 39 | #05 | Capillaire / Hirschi / Gommendy | Graff-SO24 | 6th |
| 17.6.2018 | 24 h Le Mans | 40 | #24 | Allen / Gutierrez / Guibbert | G-Drive Racing | DNF |
| 17.6.2018 | 24 h Le Mans | 48 | #20 | Lafargue / Chatin / Rojas | Idec Sport | DNF |
| 1.7.2018 | 6 h Watkins Glen | 38 | #16 | French / Miller / Masson | Performance Tech Motorsports | 34th |
| 1.7.2018 | 6 h Watkins Glen | 54 | #31 | Bennett / Dumas / Braun | CORE autosport | 2nd |
| 1.7.2018 | 6 h Watkins Glen | 85 | #30 | Trummer / Alon / Panciatici | JDC-Miller Motorsports | 8th |
| 1.7.2018 | 6 h Watkins Glen | 99 | | Simpson / Goikhberg / Miller | JDC-Miller Motorsports | 1st |
| 8.7.2018 | 2 h 40 min Mosport | 38 | #16 | French / Masson | Performance Tech Motorsports | DNS |
| 8.7.2018 | 2 h 40 min Mosport | 54 | #31 | Bennett / Braun | CORE autosport | 1st |
| 8.7.2018 | 2 h 40 min Mosport | 85 | #30 | Alon / Trummer | JDC-Miller Motorsports | 8th |
| 8.7.2018 | 2 h 40 min Mosport | 99 | | Goikhberg / Simpson | JDC-Miller Motorsports | 7th |
| 22.7.2018 | 4 h Red Bull Ring | 21 | #10 | Hedman / Lapierre / Hanley | DragonSpeed | 5th |
| 22.7.2018 | 4 h Red Bull Ring | 24 | #23 | Petit / Nato / Pla | Racing Engineering | 2nd |
| 22.7.2018 | 4 h Red Bull Ring | 26 | #26 | Rusinov / Vergne / Pizzitola | G-Drive Racing | 1st |
| 22.7.2018 | 4 h Red Bull Ring | 28 | #07 | Lafargue / Chatin / Rojas | IDEC Sport | 4th |
| 22.7.2018 | 4 h Red Bull Ring | 29 | #14 | Ragues / Jamin / Panciatici | Duqueine Engineering | DQ |
| 22.7.2018 | 4 h Red Bull Ring | 31 | #21 | Cullen / Menezes / Newey | APR - Rebellion Racing | 6th |
| 22.7.2018 | 4 h Red Bull Ring | 33 | #09 | Perrodo / Duval / Vaxiviere | TDS Racing | 9th |
| 22.7.2018 | 4 h Red Bull Ring | 39 | #05 | Cougnaud / Gommendy / Hirschi | Graff | 8th |
| 22.7.2018 | 4 h Red Bull Ring | 40 | #24 | Allen / Gutierrez | G-Drive Racing | 13th |
| 5.8.2018 | 2 h 40 min Road America | 54 | #31 | Bennett / Braun | CORE autosport | 1st |
| 5.8.2018 | 2 h 40 min Road America | 85 | #30 | Alon / Trummer | JDC-Miller Motorsports | 12th |
| 5.8.2018 | 2 h 40 min Road America | 99 | | Goikhberg / Simpson | JDC-Miller Motorsports | 2nd |
| 18.8.2018 | 4 h Silverstone | 21 | #10 | Hedman / Lapierre / Hanley | DragonSpeed | 2nd |
| 18.8.2018 | 4 h Silverstone | 24 | #23 | Petit / Nato / Vaxiviere | Racing Engineering | DNF |
| 18.8.2018 | 4 h Silverstone | 26 | #26 | Rusinov / Vergne / Pizzitola | G-Drive Racing | 1st |
| 18.8.2018 | 4 h Silverstone | 28 | #07 | Lafargue / Chatin / Rojas | IDEC Sport | 3rd |
| 18.8.2018 | 4 h Silverstone | 29 | #14 | Ragues / Panciatici / Jamin | Duqueine Engineering | 7th |
| 18.8.2018 | 4 h Silverstone | 31 | | Cullen / Menezes / Newey | APR - Rebellion Racing | 5th |
| 18.8.2018 | 4 h Silverstone | 39 | #05 | Cougnaud / Gommendy / Hirschi | Graff | 4th |
| 18.8.2018 | 4 h Silverstone | 40 | | Allen / Findlay / Gutierrez | G-Drive Racing | 12th |
| 19.8.2018 | 6 h Silverstone | 28 | | Perrodo / Duval / Vaxiviere | TDS Racing | 10th |
| 19.8.2018 | 6 h Silverstone | 31 | | Gonzalez / Davidson / Maldonado | DragonSpeed | 7th |
| 19.8.2018 | 6 h Silverstone | 37 | #17 | Jaafar / Tan / Jeffri | Jackie Chan DC Racing | 5th |
| 19.8.2018 | 6 h Silverstone | 38 | #25 | Tung / Aubry / Richelmi | Jackie Chan DC Racing | 4th |
| 9.9.2018 | 2 h 40 min Laguna Seca | 52 | #37 | Saavedra / Yacaman | AFS/PR1 Mathiasen Motorsports | 8th |
| 9.9.2018 | 2 h 40 min Laguna Seca | 54 | #31 | Bennett / Braun | CORE autosport | 2nd |
| 9.9.2018 | 2 h 40 min Laguna Seca | 85 | #30 | Alon / Trummer | JDC-Miller Motorsports | 7th |
| 9.9.2018 | 2 h 40 min Laguna Seca | 99 | | Goikhberg / Simpson | JDC-Miller Motorsports | 6th |
| 23.9.2018 | 4 h Spa | 21 | #10 | Lapierre / Hanley | DragonSpeed | 2nd |
| 23.9.2018 | 4 h Spa | 24 | #23 | Nato / Pla | Racing Engineering | 7th |
| 23.9.2018 | 4 h Spa | 26 | #26 | Pizzitola / Vergne | G-Drive Racing | 14th |
| 23.9.2018 | 4 h Spa | 28 | #07 | Chatin / Aubry | IDEC Sport | 4th |
| 23.9.2018 | 4 h Spa | 29 | #14 | Jamin / Panciatici | Duqueine Engineering | 5th |
| 23.9.2018 | 4 h Spa | 31 | | Menezes / Cullen | APR - Rebellion Racing | 32nd |
| 23.9.2018 | 4 h Spa | 39 | #05 | Hirschi / Cougnaud | Graff | 8th |
| 23.9.2018 | 4 h Spa | 40 | | Allen / Falchero | G-Drive Racing | 12th |
| 13.10.2018 | Petit Le Mans | 38 | #16 | French / Masson / Boulle | Performance Tech Motorsports | 34th |
| 13.10.2018 | Petit Le Mans | 52 | #37 | Gutierrez / Saavedra / Owen | AFS/PR1 Mathiasen Motorsports | 31st |
| 13.10.2018 | Petit Le Mans | 54 | #31 | Bennett / Dumas / Braun | CORE autosport | 7th |
| 13.10.2018 | Petit Le Mans | 85 | #30 | Trummer / DeFrancesco / Alon | JDC-Miller Motorsports | 9th |
| 13.10.2018 | Petit Le Mans | 99 | | Simpson / Goikhberg / Miller | JDC-Miller Motorsports | 10th |
| 14.10.2018 | 6 h Fuji | 28 | | Vergne / Perrodo / Vaxiviere | TDS Racing | 9th |
| 14.10.2018 | 6 h Fuji | 31 | | Davidson / Maldonado / Gonzalez | DragonSpeed | 20th |
| 14.10.2018 | 6 h Fuji | 37 | #17 | Jaafar / Jeffri / Tan | Jackie Chan DC Racing | 6th |
| 14.10.2018 | 6 h Fuji | 38 | #25 | Richelmi / Tung / Aubry | Jackie Chan DC Racing | 7th |
| 28.10.2018 | 4 h Portimão | 21 | #10 | Lapierre / Hanley / Hedman | DragonSpeed | 35th |
| 28.10.2018 | 4 h Portimão | 24 | #23 | Pla / Nato / Petit | Racing Engineering | 5th |
| 28.10.2018 | 4 h Portimão | 26 | #26 | Vergne / Pizzitola / Rusinov | G-Drive Racing | 4th |
| 28.10.2018 | 4 h Portimão | 28 | #07 | Chatin / Aubry / Rojas | IDEC Sport | 6th |
| 28.10.2018 | 4 h Portimão | 29 | #14 | Ragues / Panciatici / Jamin | Duqueine Engineering | DNF |
| 28.10.2018 | 4 h Portimão | 31 | | Menezes / Newey / Cullen | APR - Rebellion Racing | 28th |
| 28.10.2018 | 4 h Portimão | 39 | #05 | Hirschi / Cougnaud / Gommendy | Graff | 8th |
| 28.10.2018 | 4 h Portimão | 40 | | Allen / Falchero / Enqvist | G-Drive Racing | 7th |
| 18.11.2018 | 6 h Shanghai | 28 | | Duval / Perrodo / Vaxiviere | TDS Racing | NC |
| 18.11.2018 | 6 h Shanghai | 31 | | Davidson / Maldonado / Gonzalez | DragonSpeed | 12th |
| 18.11.2018 | 6 h Shanghai | 37 | #17 | Jeffri / Jaafar / Tan | Jackie Chan DC Racing | 24th |
| 18.11.2018 | 6 h Shanghai | 38 | #25 | Aubry / Richelmi / Tung | Jackie Chan DC Racing | 8th |