2018 International GT Open
The 2018 International GT Open was the thirteenth season of the International GT Open, the grand tourer-style sports car racing founded in 2006 by the Spanish GT Sport Organización. It began on 14 April at Estoril and finished on 21 October, at Barcelona after seven double-header meetings.
Entry list
| Team | Car | Drivers | Class | Rounds | |
 BMW Team Teo Martín | BMW M6 GT3 | 3 |  Juan Cruz Álvarez | P | All |
| BMW Team Teo Martín | BMW M6 GT3 | 3 |  Lourenço Beirão da Veiga | P | All |
| BMW Team Teo Martín | BMW M6 GT3 | 7 |  Márcio Basso | Am | All |
| BMW Team Teo Martín | BMW M6 GT3 | 7 | Thiago Marques | Am | 1–4 |
| BMW Team Teo Martín | BMW M6 GT3 | 7 |  Aleksey Chuklin | Am | 5 |
| BMW Team Teo Martín | BMW M6 GT3 | 7 | Guilherme Salas | Am | 6–7 |
| BMW Team Teo Martín | BMW M6 GT3 | 47 | Fran Rueda | P | All |
| BMW Team Teo Martín | BMW M6 GT3 | 47 |  Andrés Saravia | P | All |
 Olimp Racing | Audi R8 LMS | 5 | Stanislaw Jedlinski | Am | 4, 7 |
| Olimp Racing | Audi R8 LMS | 5 | Malgorzata Rdest | Am | 7 |
| Olimp Racing | Audi R8 LMS | 77 | Marcin Jedlinski | PA | 4, 7 |
| Olimp Racing | Audi R8 LMS | 77 | Mateusz Lisowski | PA | 4, 7 |
 Vincenzo Sospiri Racing | Lamborghini Huracán GT3 | 6 |  Kang Ling | P | All |
| Vincenzo Sospiri Racing | Lamborghini Huracán GT3 | 6 | Nicolas Costa | P | 1–2, 6 |
| Vincenzo Sospiri Racing | Lamborghini Huracán GT3 | 6 | Edoardo Liberati | P | 3–5 |
| Vincenzo Sospiri Racing | Lamborghini Huracán GT3 | 6 |  Phil Keen | P | 7 |
| Vincenzo Sospiri Racing | Lamborghini Huracán GT3 | 66 | Giulio Borlenghi | Am | All |
| Vincenzo Sospiri Racing | Lamborghini Huracán GT3 | 66 | Andrzej Lewandowski | Am | All |
 Honda Racing Team JAS | Honda NSX GT3 | 8 |  Bertrand Baguette | P | 6 |
| Honda Racing Team JAS | Honda NSX GT3 | 8 | Esteban Guerrieri | P | 6 |
 ARC Bratislava by VSR | Lamborghini Huracán GT3 | 9 | Miro Konôpka | Am | All |
| ARC Bratislava by VSR | Lamborghini Huracán GT3 | 9 |  Konstantīns Calko | Am | 1–3 |
| ARC Bratislava by VSR | Lamborghini Huracán GT3 | 9 | Zdeno Mikulasko | Am | 4, 6–7 |
| ARC Bratislava by VSR | Lamborghini Huracán GT3 | 9 | Darren Burke | Am | 5 |
| RS Racing | Ferrari 488 GT3 | 11 | Daniele di Amato | P | 1, 3–7 |
| RS Racing | Ferrari 488 GT3 | 11 | Andrea Montermini | P | 1, 3, 7 |
| RS Racing | Ferrari 488 GT3 | 11 | Andrea Bertolini | P | 4–6 |
| Ombra Racing | Lamborghini Huracán GT3 | 12 | Damiano Fioravanti | P | All |
| Ombra Racing | Lamborghini Huracán GT3 | 12 | Fernando Rees | P | 1–4 |
| Ombra Racing | Lamborghini Huracán GT3 | 12 | Alex Frasinetti | P | 5 |
| Ombra Racing | Lamborghini Huracán GT3 | 12 | Stefano Gattuso | P | 6 |
| Ombra Racing | Lamborghini Huracán GT3 | 12 | Andrea Rizzoli | P | 7 |
| Drivex School | Mercedes-AMG GT3 | 16 | Marcelo Hahn | PA | All |
| Drivex School | Mercedes-AMG GT3 | 16 | Allam Khodair | PA | 1, 3–5, 7 |
| Drivex School | Mercedes-AMG GT3 | 16 | Allan Hellmeister | PA | 2, 6 |
| Drivex School | Mercedes-AMG GT3 | 36 |  Lucas Auer | PA | 7 |
| Drivex School | Mercedes-AMG GT3 | 36 | Christian Hahn | PA | 7 |
| Drivex School | Mercedes-AMG GT3 | 41 | Ricardo Baptista | PA | 4–6 |
| Drivex School | Mercedes-AMG GT3 | 41 | Cacá Bueno | PA | 4–5 |
| Drivex School | Mercedes-AMG GT3 | 41 | Duarte Félix da Costa | PA | 6 |
| Drivex School | Mercedes-AMG GT3 | 62 | Jamie Campbell-Walter | P | 1 |
| Drivex School | Mercedes-AMG GT3 | 62 | Ferdinand Habsburg | P | 1 |
 Senkyr Motorsport | BMW M6 GT3 | 17 | Richard Gonda | P | 3, 7 |
| Senkyr Motorsport | BMW M6 GT3 | 17 |  Joel Eriksson | P | 3 |
| Senkyr Motorsport | BMW M6 GT3 | 17 |  Mikkel Jensen | P | 7 |
| Imperiale Racing | Lamborghini Huracán GT3 | 19 | Raffaele Giammaria | PA | All |
| Imperiale Racing | Lamborghini Huracán GT3 | 19 | Jia Tong Liang | PA | All |
| Imperiale Racing | Lamborghini Huracán GT3 | 25 | Riccardo Agostini | P | All |
| Imperiale Racing | Lamborghini Huracán GT3 | 25 |  Rik Breukers | P | All |
| Imperiale Racing | Lamborghini Huracán GT3 | 63 | Jeroen Mul | P | All |
| Imperiale Racing | Lamborghini Huracán GT3 | 63 | Giovanni Venturini | P | All |
 SPS Automotive Performance | Mercedes-AMG GT3 | 20 | Tom Onslow-Cole | PA | All |
| SPS Automotive Performance | Mercedes-AMG GT3 | 20 | Valentin Pierburg | PA | All |
| Krypton Motorsport | Mercedes-AMG GT3 | 24 | Mario Cordoni | Am | 1 |
| Krypton Motorsport | Mercedes-AMG GT3 | 24 | Marco Zanuttini | Am | 1 |
| Team Parker Racing | Bentley Continental GT3 | 24 | Ian Loggie | PA | 5 |
| Team Parker Racing | Bentley Continental GT3 | 24 | Callum MacLeod | PA | 5 |
| Daiko Lazarus Racing | Lamborghini Huracán GT3 | 27 | Fabrizio Crestani | PA | All |
| Daiko Lazarus Racing | Lamborghini Huracán GT3 | 27 | Miguel Ramos | PA | All |
| Daiko Lazarus Racing | Lamborghini Huracán GT3 | 28 | Giuseppe Cipriani | PA | All |
| Daiko Lazarus Racing | Lamborghini Huracán GT3 | 28 | Toby Sowery | PA | All |
| Rinaldi Racing | Ferrari 488 GT3 | 33 | Christian Hook | Am | 2–4 |
| Rinaldi Racing | Ferrari 488 GT3 | 33 | Steve Parrow | Am | 2–4 |
| Rinaldi Racing | Ferrari 488 GT3 | 33 | Steve Parrow | PA | 5–6 |
| Rinaldi Racing | Ferrari 488 GT3 | 33 | Christian Hook | PA | 7 |
| Rinaldi Racing | Ferrari 488 GT3 | 33 | Daniel Keilwitz | PA | 5 |
| Rinaldi Racing | Ferrari 488 GT3 | 33 | Dominik Schwager | PA | 6–7 |
| Rinaldi Racing | Ferrari 488 GT3 | 333 |  David Perel | PA | 2–7 |
| Rinaldi Racing | Ferrari 488 GT3 | 333 |  Vadim Kogay | PA | 2–3 |
| Rinaldi Racing | Ferrari 488 GT3 | 333 | Rinat Salikhov | PA | 4–7 |
| Rinaldi Racing | Ferrari 488 GT3 | 999 | Rinat Salikhov | Am | 3 |
 Luzich Racing | Ferrari 488 GT3 | 51 | Alessandro Pier Guidi | P | All |
| Luzich Racing | Ferrari 488 GT3 | 51 | Mikkel Mac | P | All |
| Luzich Racing | Ferrari 488 GT3 | 52 | Marco Cioci | P | 3–5, 7 |
| Luzich Racing | Ferrari 488 GT3 | 52 |  Matt Griffin | P | 3, 7 |
| Luzich Racing | Ferrari 488 GT3 | 52 | Daniel Serra | P | 4–5 |
| Luzich Racing | Ferrari 488 GT3 | 52 | Eddie Cheever III | PA | 6 |
| Luzich Racing | Ferrari 488 GT3 | 52 | Nicklas Nielsen | PA | 6 |
| Luzich Racing | Ferrari 488 GT3 | 71 | Michele Rugolo | PA | All |
| Luzich Racing | Ferrari 488 GT3 | 71 | Alexander West | PA | All |
| Lechner Racing | Mercedes-AMG GT3 | 72 | Thomas Jäger | PA | 2, 6–7 |
| Lechner Racing | Mercedes-AMG GT3 | 72 | Mario Plachutta | PA | 2, 6–7 |
| HTP Motorsport / MS Racing | Mercedes-AMG GT3 | 74 | Alexander Hrachowina | Am | All |
| HTP Motorsport / MS Racing | Mercedes-AMG GT3 | 74 | Martin Konrad | Am | All |
| Winward Racing / HTP Motorsport | Mercedes-AMG GT3 | 84 | Indy Dontje | Am | All |
| Winward Racing / HTP Motorsport | Mercedes-AMG GT3 | 84 | Russell Ward | Am | All |
| Target Racing | Lamborghini Huracán GT3 | 90 | Alberto Di Folco | PA | 2–4, 6 |
| Target Racing | Lamborghini Huracán GT3 | 90 | Stefano Constantini | PA | 2–4, 6 |
| Target Racing | Lamborghini Huracán GT3 | 90 | Alberto Di Folco | P | 7 |
| Target Racing | Lamborghini Huracán GT3 | 90 |  Adrian Zaugg | P | 7 |
| Target Racing | Lamborghini Huracán GT3 | 91 | Stefano Constantini | Am | 7 |
| Target Racing | Lamborghini Huracán GT3 | 91 | Christoph Lenz | Am | 7 |
| Optimum Motorsport | Audi R8 LMS | 96 | Bradley Ellis | PA | All |
| Optimum Motorsport | Audi R8 LMS | 96 | Oliver Wilkinson | PA | All |
| Sports and You | Mercedes-AMG GT3 | 99 | "Manuel da Costa" | Am | 1–4, 7 |
| Sports and You | Mercedes-AMG GT3 | 99 | "Miguel Sardinha" | Am | 1–4, 7 |
| Porteiro Motorsport | Mercedes-AMG GT3 | 111 | Phillippe Denes | Am | 7 |
| Porteiro Motorsport | Mercedes-AMG GT3 | 111 | Charles Finelli | Am | 7 |
| Aston Martin Brussels Racing | Aston Martin V12 Vantage GT3 | 100 | Wolfgang Reip | P | 3 |
| Aston Martin Brussels Racing | Aston Martin V12 Vantage GT3 | 100 | Tim Verbergt | P | 3 |
;Notes
Race calendar
A seven-round provisional calendar was revealed on 30 September 2017. The schedule will feature the same seven European circuits, with the order of Le Castellet and Spa swapped.Bold indicates overall winner.