| 25.1.2015 | 24 h Daytona | 912 | #WP0ZZZ99ZES199903 | Makowiecki / Bergmeister / Bamber / Christensen | Porsche North America | 31st |
| 21.3.2015 | 12 h Sebring | 17 | #WP0ZZZ99ZES199912 | Henzler / Sellers / Long | Team Falken Tire | 12th |
| 21.3.2015 | 12 h Sebring | 911 | #WP0ZZZ99ZES199902 | Pilet / Tandy / Lietz / Bamber | Porsche North America | 14th |
| 21.3.2015 | 12 h Sebring | 912 | #WP0ZZZ99ZES199903 | Makowiecki / Bergmeister / Bamber / Tandy | Porsche North America | 21st |
| 24.3.2015 | ELMS Test Paul Ricard | 86 | | Wainwright / Carroll / Cullen / Keen | Gulf Racing UK | 14th |
| 28.3.2015 | WEC Test Paul Ricard | 77 | | Long / Seefried | Dempsey Racing - Proton | 25th |
| 28.3.2015 | WEC Test Paul Ricard | 88 | | Ried / Al Qubaisi / Bachler | Abu Dhabi-Proton Racing | 27th |
| 28.3.2015 | WEC Test Paul Ricard | 91 | | Lietz / Christensen / Bergmeister / Müller | Porsche Team Manthey | 23rd |
| 28.3.2015 | WEC Test Paul Ricard | 92 | | Pilet / Makowiecki / Henzler | Porsche Team Manthey | 24th |
| 11.4.2015 | 4 h Silverstone | 86 | | Keen / Wainwright / Carroll | Gulf Racing UK | 8th |
| 11.4.2015 | 4 h Silverstone | 88 | | Ried / Bachler / Al Qubaisi | Proton Competition | 12th |
| 12.4.2015 | 6 h Silverstone | 77 | | Dempsey / Long / Seefried | Dempsey Racing - Proton | 23rd |
| 12.4.2015 | 6 h Silverstone | 88 | | Ried / Al Qubaisi / Bachler | Abu Dhabi-Proton Racing | 21st |
| 12.4.2015 | 6 h Silverstone | 91 | | Lietz / Christensen | Porsche Team Manthey | 10th |
| 12.4.2015 | 6 h Silverstone | 92 | | Pilet / Makowiecki | Porsche Team Manthey | 15th |
| 18.4.2015 | 100 min Long Beach [P/GTLM] | 17 | #WP0ZZZ99ZES199912 | Sellers / Henzler | Team Falken Tire | 12th |
| 18.4.2015 | 100 min Long Beach [P/GTLM] | 911 | #WP0ZZZ99ZES199901 | Pilet / Makowiecki | Porsche North America | 10th |
| 18.4.2015 | 100 min Long Beach [P/GTLM] | 912 | #WP0ZZZ99ZES199903 | Lietz / Bergmeister | Porsche North America | 16th |
| 2.5.2015 | 6 h Spa | 77 | #WP0ZZZ99ZFS199911 | Dempsey / Long / Seefried | Dempsey-Proton Racing | 28th |
| 2.5.2015 | 6 h Spa | 88 | #WP0ZZZ99ZES199914 | Ried / Al Qubaisi / Bachler | Abu Dhabi-Proton Racing | 27th |
| 2.5.2015 | 6 h Spa | 91 | | Müller / Estre | Porsche Team Manthey | 18th |
| 2.5.2015 | 6 h Spa | 92 | | Makowiecki / Lietz | Porsche Team Manthey | 17th |
| 3.5.2015 | 2 h Laguna Seca | 17 | #WP0ZZZ99ZES199912 | Henzler / Sellers | Team Falken Tire | 18th |
| 3.5.2015 | 2 h Laguna Seca | 911 | #WP0ZZZ99ZES199901 | Pilet / Christensen | Porsche North America | 12th |
| 3.5.2015 | 2 h Laguna Seca | 912 | #WP0ZZZ99ZES199903 | Christensen / Bergmeister | Porsche North America | 14th |
| 17.5.2015 | 4 h Imola | 86 | | Wainwright / Carroll / Keen | Gulf Racing UK | 22nd |
| 17.5.2015 | 4 h Imola | 88 | | Mapelli / Lietz / Ried | Proton Competition | 10th |
| 31.5.2015 | Le Mans Test | 68 | | Chen / Vannelet / Parisy | Team AAI | 61st |
| 31.5.2015 | Le Mans Test | 77 | #WP0ZZZ99ZFS199911 | Dempsey / Long / Seefried | Dempsey-Proton Racing | 57th |
| 31.5.2015 | Le Mans Test | 86 | | Wainwright / Carroll / Keen | Gulf Racing UK | 47th |
| 31.5.2015 | Le Mans Test | 88 | #WP0ZZZ99ZES199914 | Ried / Al Qubaisi / Bachler | Abu Dhabi-Proton Racing | 58th |
| 31.5.2015 | Le Mans Test | 91 | | Lietz / Christensen / Bergmeister / Müller | Porsche Team Manthey | 42nd |
| 31.5.2015 | Le Mans Test | 92 | | Pilet / Makowiecki / Henzler / Müller | Porsche Team Manthey | 39th |
| 14.6.2015 | 24 h Le Mans | 65 | | Wolf Henzler | Proton Competition | DNA |
| 14.6.2015 | 24 h Le Mans | 68 | #WP0ZZZ99ZES199911 | Chen / Vannelet / Parisy | Team AAI | 35th |
| 14.6.2015 | 24 h Le Mans | 77 | #WP0ZZZ99ZFS199911 | Dempsey / Long / Seefried | Dempsey - Proton Racing | 22nd |
| 14.6.2015 | 24 h Le Mans | 86 | #WP0ZZZ99ZES199915 | Wainwright / Carroll / Keen | Gulf Racing UK | DNA |
| 14.6.2015 | 24 h Le Mans | 88 | #WP0ZZZ99ZES199914 | Ried / Al Qubaisi / Bachler | Abu Dhabi-Proton Racing | DNF |
| 14.6.2015 | 24 h Le Mans | 91 | #WP0ZZZ99ZFS199903 | Lietz / Christensen / Bergmeister | Porsche Team Manthey | 30th |
| 14.6.2015 | 24 h Le Mans | 92 | #WP0ZZZ99ZFS199904 | Pilet / Makowiecki / Henzler | Porsche Team Manthey | DNF |
| 28.6.2015 | 6 h Watkins Glen | 17 | #WP0ZZZ99ZES199912 | Sellers / Henzler | Team Falken Tire | 10th |
| 28.6.2015 | 6 h Watkins Glen | 911 | #WP0ZZZ99ZES199901 | Pilet / Tandy / Bamber | Porsche North America | 15th |
| 28.6.2015 | 6 h Watkins Glen | 912 | #WP0ZZZ99ZES199903 | Bamber / Bergmeister / Tandy | Porsche North America | 11th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 17 | #WP0ZZZ99ZES199912 | Sellers / Henzler | Team Falken Tire | 21st |
| 12.7.2015 | 4 h Red Bull Ring | 86 | #WP0ZZZ99ZES199915 | Wainwright / Carroll / Brown | Gulf Racing UK | 17th |
| 12.7.2015 | 4 h Red Bull Ring | 88 | #WP0ZZZ99ZES199911 | Lietz / Asch / Ried | Proton Competition | 14th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 911 | #WP0ZZZ99ZES199901 | Tandy / Pilet | Porsche North America | 12th |
| 12.7.2015 | 2 h 40 min Mosport [P/PC/GTLM] | 912 | #WP0ZZZ99ZES199903 | Bergmeister / Bamber | Porsche North America | 19th |
| 9.8.2015 | 2 h 40 min Road America | 17 | #WP0ZZZ99ZES199912 | Henzler / Sellers | Team Falken Tire | 21st |
| 9.8.2015 | 2 h 40 min Road America | 911 | #WP0ZZZ99ZES199901 | Pilet / Tandy | Porsche North America | 13th |
| 9.8.2015 | 2 h 40 min Road America | 912 | #WP0ZZZ99ZES199903 | Bamber / Bergmeister | Porsche North America | 14th |
| 23.8.2015 | 2 h 40 min Virginia [GTLM/GTD] | 17 | #WP0ZZZ99ZES199912 | Sellers / Henzler | Team Falken Tire | 7th |
| 23.8.2015 | 2 h 40 min Virginia [GTLM/GTD] | 911 | #WP0ZZZ99ZES199901 | Tandy / Pilet | Porsche North America | 1st |
| 23.8.2015 | 2 h 40 min Virginia [GTLM/GTD] | 912 | #WP0ZZZ99ZES199903 | Bergmeister / Bamber | Porsche North America | 2nd |
| 30.8.2015 | 6 h Nürburgring | 77 | #WP0ZZZ99ZFS199911 | Dempsey / Long / Seefried | Dempsey-Proton Racing | 26th |
| 30.8.2015 | 6 h Nürburgring | 88 | #WP0ZZZ99ZES199914 | Ried / Al Qubaisi / Bamber | Abu Dhabi-Proton Racing | 28th |
| 30.8.2015 | 6 h Nürburgring | 91 | #WP0ZZZ99ZFS199903 | Lietz / Christensen | Porsche Team Manthey | 15th |
| 30.8.2015 | 6 h Nürburgring | 92 | #WP0ZZZ99ZFS199904 | Pilet / Makowiecki | Porsche Team Manthey | 16th |
| 6.9.2015 | 4 h Paul Ricard | 86 | | Wainwright / Carroll / Keen | Gulf Racing UK | 15th |
| 6.9.2015 | 4 h Paul Ricard | 88 | | Mapelli / Lietz / Ried | Proton Competition | 12th |
| 19.9.2015 | 2 h 40 min Austin | 17 | #WP0ZZZ99ZES199912 | Henzler / Sellers | Team Falken Tire | 16th |
| 19.9.2015 | 6 h Austin | 77 | | Dempsey / Long / Seefried | Dempsey - Proton Racing | 24th |
| 19.9.2015 | 6 h Austin | 88 | | Ried / Al Qubaisi / Bamber | Abu Dhabi-Proton Racing | 22nd |
| 19.9.2015 | 6 h Austin | 91 | | Lietz / Christensen | Porsche Team Manthey | 14th |
| 19.9.2015 | 6 h Austin | 92 | | Pilet / Makowiecki | Porsche Team Manthey | 15th |
| 19.9.2015 | 2 h 40 min Austin | 911 | #WP0ZZZ99ZES199901 | Pilet / Tandy | Porsche North America | 15th |
| 19.9.2015 | 2 h 40 min Austin | 912 | #WP0ZZZ99ZES199903 | Bamber / Bergmeister | Porsche North America | 17th |
| 3.10.2015 | Petit Le Mans | 17 | #WP0ZZZ99ZES199912 | Sellers / Henzler / Long | Team Falken Tire | 11th |
| 3.10.2015 | Petit Le Mans | 911 | #WP0ZZZ99ZES199901 | Tandy / Pilet / Lietz | Porsche North America | 1st |
| 3.10.2015 | Petit Le Mans | 912 | #WP0ZZZ99ZES199903 | Bamber / Bergmeister / Makowiecki | Porsche North America | 13th |
| 11.10.2015 | 6 h Fuji | 77 | | Dempsey / Long / Seefried | Dempsey - Proton Racing | 22nd |
| 11.10.2015 | 6 h Fuji | 88 | | Ried / Al Qubaisi / Bamber | Abu Dhabi-Proton Racing | 27th |
| 11.10.2015 | 6 h Fuji | 91 | | Lietz / Christensen | Porsche Team Manthey | 17th |
| 11.10.2015 | 6 h Fuji | 92 | | Pilet / Makowiecki | Porsche Team Manthey | 15th |
| 18.10.2015 | 4 h Estoril | 86 | | Wainwright / Carroll / Keen | Gulf Racing UK | 11th |
| 18.10.2015 | 4 h Estoril | 88 | | Lietz / Asch / Ried | Proton Competition | 25th |
| 1.11.2015 | 6 h Shanghai | 77 | | Dempsey / Long / Seefried | Dempsey - Proton Racing | 24th |
| 1.11.2015 | 6 h Shanghai | 88 | | Ried / Al Qubaisi / Bachler | Abu Dhabi-Proton Racing | 28th |
| 1.11.2015 | 6 h Shanghai | 91 | | Lietz / Christensen | Porsche Team Manthey | 14th |
| 1.11.2015 | 6 h Shanghai | 92 | | Pilet / Makowiecki | Porsche Team Manthey | 16th |
| 21.11.2015 | 6 h Bahrain | 77 | | Long / Ried / Seefried | Dempsey - Proton Racing | 28th |
| 21.11.2015 | 6 h Bahrain | 88 | | Mapelli / Al Qubaisi / Bachler | Abu Dhabi-Proton Racing | 27th |
| 21.11.2015 | 6 h Bahrain | 91 | | Christensen / Lietz | Porsche Team Manthey | 23rd |
| 21.11.2015 | 6 h Bahrain | 92 | | Pilet / Makowiecki | Porsche Team Manthey | 18th |
| 22.11.2015 | Bahrain Rookie Test | 91 | | Catsburg / Eng | Porsche Team Manthey | 10th |
| 22.11.2015 | Bahrain Rookie Test | 92 | | Catsburg / Eng / Heinemeier Hansson | Porsche Team Manthey | 9th |