The Pirelli World Challenge capped off its Sprint season this weekend for the GT and GTS classes at Sonoma Raceway, with Patrick Long and Michael Cooper emerging as the biggest winners of the weekend at the 2.385-mile road course.

Additionally in GTS, season-long sparring partners Lawson Aschenbach and Ian James won one race apiece.

Lastly, the series put out most of its 2018 schedule late Sunday in advance of its championship celebration.


Excerpted from NBCSPORTS.com. Read the full article at:
http://motorsports.nbcsports.com/2017/09/20/pwc-sonoma-wraps-2017-2018-schedule-posted/