2017 International GT Open season

The 2017 International GT Open season is the twelfth 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 29 April at Autódromo do Estoril and will finish on 29 October, at Barcelona after seven double-header meetings.

A seven-round provisional calendar was revealed on 4 October 2016. The Hungaroring round will be co-headlined by the TCR International Series. Bold indicates overall winner.

Reference:

...
Wikipedia