| 10.8.2013 | 2 h 45 min Road America | 18 | #WP0ZZZ99ZBS798072 | Bleekemolen / Bergmeister | Muehlner Motorsports America | 20th |
| 10.8.2013 | 2 h 45 min Road America | 19 | #WP0ZZZ99Z8S798319 | Doyle / Maiman | Muehlner Motorsports America | 25th |
| 10.8.2013 | 2 h 45 min Road America | 44 | #WP0ZZZ99Z9S798076 | Potter / Lally | Magnus Racing | 14th |
| 10.8.2013 | 2 h 45 min Road America | 73 | #WP0ZZZ99ZCS798073 | Lindsey / Long | Park Place Motorsports | 11th |
| 11.8.2013 | 2 h 45 min Road America | 11 | #WP0ZZZ99ZDS798065 | Hedlund / Heylen | JDX Racing | 30th |
| 11.8.2013 | 2 h 45 min Road America | 22 | #WP0ZZZ99ZBS798073 | MacNeil / Bleekemolen | Alex Job Racing | 25th |
| 11.8.2013 | 2 h 45 min Road America | 27 | #WP0ZZZ99ZDS798067 | Dempsey / Lally | Dempsey Del Piero Racing | 27th |
| 11.8.2013 | 2 h 45 min Road America | 30 | #WP0ZZZ99ZBS798208 | Cisneros / Edwards | NGT Motorsport | 26th |
| 11.8.2013 | 2 h 45 min Road America | 44 | #WP0ZZZ99ZDS798081 | Neiman / von Moltke | Flying Lizard Motorsports | 28th |
| 11.8.2013 | 2 h 45 min Road America | 45 | #WP0ZZZ99ZDS798064 | Canache / Pumpelly | Flying Lizard Motorsports | 24th |
| 11.8.2013 | 2 h 45 min Road America | 66 | #WP0ZZZ99ZBS798081b | Keating / Faulkner | TRG | 33rd |
| 11.8.2013 | 2 h 45 min Road America | 68 | #WP0ZZZ99ZDS798066 | Courtney / Snow | TRG | 29th |
| 17.8.2013 | 2 h 45 min Kansas | 18 | #WP0ZZZ99ZBS798072 | | Muehlner Motorsports America | DNA |
| 17.8.2013 | Swedish GT Anderstorp | 21 | | Holmström / Hall | Movit Racing | 19th/11th |
| 17.8.2013 | 2 h 45 min Kansas | 44 | #WP0ZZZ99Z9S798076 | Potter / Lally | Magnus Racing | 18th |
| 17.8.2013 | 2 h 45 min Kansas | 73 | #WP0ZZZ99ZCS798073 | Lindsey / Long | Park Place Motorsports | 12th |
| 17.8.2013 | Swedish GT Anderstorp | 95 | | Skoog / Skoog | PFI - Racing | 4th/7th |
| 18.8.2013 | Brasil GT Interlagos | 33 | | Fabiano / Melo | Mundo Motorsport | 7th/6th |
| 31.8.2013 | Portuguese GT Algarve | 6 | | Baptista / Marreiros | Pedro Marreiros | DNA |
| 31.8.2013 | 2 h Baltimore | 11 | #WP0ZZZ99ZDS798065 | Hedlund / Heylen | JDX Racing | 15th |
| 31.8.2013 | 2 h Baltimore | 22 | #WP0ZZZ99ZBS798073 | MacNeil / Bleekemolen | Alex Job Racing | 14th |
| 31.8.2013 | 2 h Baltimore | 27 | #WP0ZZZ99ZDS798072 | Dempsey / Lally | Dempsey Del Piero Racing | 16th |
| 31.8.2013 | 2 h Baltimore | 30 | #WP0ZZZ99ZBS798208 | Cisneros / Edwards | NGT Motorsport | 17th |
| 31.8.2013 | Portuguese GT Algarve | 32 | | Manahu / Castro | Goncalo Manahu | 5th |
| 31.8.2013 | 2 h Baltimore | 44 | #WP0ZZZ99ZDS798081 | Neiman / von Moltke | Flying Lizard Motorsports | 13th |
| 31.8.2013 | 2 h Baltimore | 45 | #WP0ZZZ99ZDS798064 | Canache / Pumpelly | Flying Lizard Motorsports | 21st |
| 31.8.2013 | 2 h Baltimore | 66 | #WP0ZZZ99ZBS798081b | Keating / Faulkner | TRG | 25th |
| 31.8.2013 | 2 h Baltimore | 67 | #WP0ZZZ99ZCS793074 | Bunting / Siedler | TRG | 18th |
| 31.8.2013 | 2 h Baltimore | 68 | #WP0ZZZ99ZDS798066 | Carter / Estre | TRG | 23rd |
| 1.9.2013 | Italian GT Imola | 101 | | Macchiavelli / Donativi | Antonelli Motorsport | 10th/10th |
| 1.9.2013 | Italian GT Imola | 102 | | Marco Magli | Antonelli Motorsport | 15th/12th |
| 1.9.2013 | Italian GT Imola | 104 | | Jacoma / Pan | Ebimotors | 11th/DNF |
| 1.9.2013 | Italian GT Imola | 111 | | Bianco / Babini | GDL Racing | 8th/6th |
| 1.9.2013 | Italian GT Imola | 132 | | Rangoni / Galbiati | Antonelli Motorsport | 9th/7th |
| 8.9.2013 | 2 h 45 min Laguna Seca | 18 | #WP0ZZZ99ZBS798072 | Wong / Marcelli | Muehlner Motorsports America | 21st |
| 8.9.2013 | Brasil GT Curitiba | 33 | | Fabiano / Melo | Mundo Motorsport | DNS/DNF |
| 8.9.2013 | 2 h 45 min Laguna Seca | 44 | #WP0ZZZ99Z9S798076 | Potter / Lally | Magnus Racing | 16th |
| 8.9.2013 | 2 h 45 min Laguna Seca | 71 | #WP0ZZZ99ZC5798075 | Putman / Espenlaub | Park Place Motorsports | 27th |
| 8.9.2013 | 2 h 45 min Laguna Seca | 73 | #WP0ZZZ99ZCS798073 | Lindsey / Long | Park Place Motorsports | 24th |
| 15.9.2013 | Portuguese GT Braga | 6 | | Marreiros / Baptista | Veloso Motorsport | 2nd |
| 15.9.2013 | Portuguese GT Braga | 32 | | Manahu / Castro | Gonçalo Manahu | DNF |
| 15.9.2013 | Portuguese GT Braga | 33 | | Baptista / Machado / Dias | João Baptista | 3rd |
| 15.9.2013 | Italian GT Vallelunga | 101 | | Donativi / Gaiotto | Antonelli Motorsport | 15th/12th |
| 15.9.2013 | Italian GT Vallelunga | 102 | | Marco Magli | Antonelli Motorsport | 13th/10th |
| 15.9.2013 | Italian GT Vallelunga | 104 | | Pan / Gardel | Ebimotors | 10th/13th |
| 15.9.2013 | Italian GT Vallelunga | 111 | | Bianco / Babini | GDL Racing | 14th/11th |
| 15.9.2013 | Italian GT Vallelunga | 132 | | Galbiati / Rangoni | Antonelli Motorsport | 12th/14th |
| 21.9.2013 | 2 h 45 min Austin | 11 | #WP0ZZZ99ZDS798065 | Hedlund / Heylen | JDX Racing | 24th |
| 21.9.2013 | 2 h 45 min Austin | 22 | #WP0ZZZ99ZBS798073 | MacNeil / Bleekemolen | Alex Job Racing | 26th |
| 21.9.2013 | 2 h 45 min Austin | 27 | #WP0ZZZ99ZDS798072 | Dempsey / Lally | Dempsey Racing | 23rd |
| 21.9.2013 | 2 h 45 min Austin | 30 | #WP0ZZZ99ZBS798208 | Cisneros / Edwards | NGT Motorsport | 22nd |
| 21.9.2013 | 2 h 45 min Austin | 44 | #WP0ZZZ99ZDS798081 | Neiman / von Moltke | Flying Lizard Motorsports | 27th |
| 21.9.2013 | 2 h 45 min Austin | 45 | #WP0ZZZ99ZDS798064 | Canache / Pumpelly | Flying Lizard Motorsports | 25th |
| 21.9.2013 | 2 h 45 min Austin | 66 | #WP0ZZZ99ZBS798081b | Keating / Faulkner | TRG | 21st |
| 21.9.2013 | 2 h 45 min Austin | 68 | #WP0ZZZ99ZDS798066 | Courtney / Snow | TRG | DNS |
| 22.9.2013 | Britcar GT Silverstone | 24 | | Loggie / Jones / Westwood | Team Parker Racing Ltd. | 5th |
| 28.9.2013 | 2 h 45 min Lime Rock | 18 | #WP0ZZZ99ZBS798072 | Doyle / Marcelli | Muehlner Motorsports America | DNS |
| 28.9.2013 | 2 h 45 min Lime Rock | 19 | #WP0ZZZ99Z8S798319 | Greenberg / Lietz | Muehlner Motorsports America | 21st |
| 28.9.2013 | 2 h 45 min Lime Rock | 44 | #WP0ZZZ99Z9S798076 | Potter / Lally | Magnus Racing | 29th |
| 28.9.2013 | 2 h 45 min Lime Rock | 73 | #WP0ZZZ99ZCS798073 | Lindsey / Long | Park Place Motorsports | 24th |
| 29.9.2013 | GTSprint Imola | 55 | | Sebastien Fortuna | Fortuna Racing | 11th/9th |
| 29.9.2013 | GTSprint Imola | 83 | | Sala / Petrini | Heaven Motorsport | DNS |
| 5.10.2013 | 2 h 45 min Virginia | 11 | #WP0ZZZ99ZDS798065 | Hedlund / Heylen | JDX Racing | 21st |
| 5.10.2013 | 2 h 45 min Virginia | 22 | #WP0ZZZ99ZBS798073 | MacNeil / Bleekemolen | Alex Job Racing | 19th |
| 5.10.2013 | 2 h 45 min Virginia | 27 | #WP0ZZZ99ZDS798072 | Dempsey / Lally | Dempsey Racing | 23rd |
| 5.10.2013 | 2 h 45 min Virginia | 30 | #WP0ZZZ99ZBS798208 | Cisneros / Edwards | NGT Motorsport | 20th |
| 5.10.2013 | 2 h 45 min Virginia | 31 | #WP0ZZZ992BS798191?? | Cisneros / Giermaziak | NGT Motorsport | 30th |
| 5.10.2013 | 2 h 45 min Virginia | 44 | #WP0ZZZ99ZDS798081 | Neiman / von Moltke | Flying Lizard Motorsports | 22nd |
| 5.10.2013 | 2 h 45 min Virginia | 45 | #WP0ZZZ99ZDS798064 | Pumpelly / Canache | Flying Lizard Motorsports | 24th |
| 5.10.2013 | 2 h 45 min Virginia | 66 | #WP0ZZZ99ZBS798081 | Keating / Faulkner | TRG | 18th |
| 5.10.2013 | 2 h 45 min Virginia | 68 | #WP0ZZZ99ZDS798066 | | TRG | DNA |
| 6.10.2013 | Brasil GT Velopark | 33 | | Fabiano / Melo | Mundo Motorsport | 11th/11th |
| 13.10.2013 | GTSprint Vallelunga | 53 | | Emanuele Romani | ME Sporting | DNF/DNF |
| 19.10.2013 | Petit Le Mans | 10 | #WP0ZZZ99ZBS798067 | Espenlaub / Putman / Law | Dempsey Racing | 30th |
| 19.10.2013 | Petit Le Mans | 11 | #WP0ZZZ99ZDS798065 | Hedlund / Fogarty / Heylen | JDX Racing | 24th |
| 19.10.2013 | Petit Le Mans | 22 | #WP0ZZZ99ZBS798073 | MacNeil / Bleekemolen / Bleekemolen | Alex Job Racing | 25th |
| 19.10.2013 | Petit Le Mans | 27 | #WP0ZZZ99ZDS798072 | Dempsey / Lally / Foster | Dempsey Racing | 23rd |
| 19.10.2013 | Petit Le Mans | 30 | #WP0ZZZ99ZBS798208 | Cisneros / Giermaziak / Farnbacher | NGT Motorsports | unused |
| 19.10.2013 | Petit Le Mans | 31 | #WP0ZZZ992BS798191 | Armindo / Nielsen / Benitez, Jr. | NGT Motorsport | 28th |
| 19.10.2013 | Petit Le Mans | 44 | #WP0ZZZ99ZDS798081 | Neiman / von Moltke / Sandberg | Flying Lizard Motorsports | 26th |
| 19.10.2013 | Petit Le Mans | 45 | #WP0ZZZ99ZDS798064 | Canache / Pumpelly / Snow | Flying Lizard Motorsports | 22nd |
| 19.10.2013 | Petit Le Mans | 66 | #WP0ZZZ99ZBS798081 | Keating / Faulkner / Stanton | TRG | 27th |
| 19.10.2013 | Petit Le Mans | 68 | #WP0ZZZ99ZDS798066 | | TRG | DNA |
| 20.10.2013 | Italian GT Monza | 101 | | Donativi / Gaiotto | Antonelli Motorsport | 15th/11th |
| 20.10.2013 | Italian GT Monza | 102 | | Marco Magli | Antonelli Motorsport | 12th/DNF |
| 20.10.2013 | Italian GT Monza | 104 | | Pan / Jacoma | Ebimotors | 13th/10th |
| 20.10.2013 | Italian GT Monza | 132 | | Galbiati / Rangoni | Antonelli Motorsport | 14th/DNF |
| 2.11.2013 | Britcar GT Donington | 24 | | Loggie / Jones | Team Parker | 6th |
| 9.11.2013 | Australian GT Highlands | 25 | | Cook / Russell | Brendon Cook | DNF/DNS |
| 9.11.2013 | Australian GT Highlands | 35 | | Padayachee / Zerefos | Rentcorp | 13th/15th |
| 9.11.2013 | Australian GT Highlands | 51 | | MacPherson / Porter | Imak International | 8th/8th |
| 17.11.2013 | 6 h Vallelunga | 20 | | Mapelli / Farmer / Bianco | GDL Racing | 6th |
| 17.11.2013 | 6 h Vallelunga | 30 | | Scanzi / Scanzi / Cassarà / Palazzo | Krypton Motorsport | 9th |
| 17.11.2013 | 6 h Vallelunga | 31 | | | Antonelli Motorsport | DNA |
| 17.11.2013 | 6 h Vallelunga | 31 | | Zamuner / Fracasso / Minetti / Caneva | Krypton Motorsport | 11th |
| 17.11.2013 | 6 h Vallelunga | 34 | | Salikhov / Krebs / Melnikov | Sportec Motorsport | 7th |
| 13.12.2013 | 12 h Gulf | 44 | | Bohn / Melnikov / Allemann | MRS GT-Racing | 8th |