[1] The Ultra 94 GT3 Cup Challenge Canada by Yokohama featured semi-professional drivers racing head to head in one of the largest single-make series in North America.

The multi-class structure of the series taught drivers essential skills for eventual careers in the Porsche Supercup or the American Le Mans Series (Now currently as the WeatherTech SportsCar Championship).

Randy Hembrey was the Race Director from 2013 to 2014, followed by Kyle Novak.

Starting in 2018, the series Race Director was John Maesky.

The series was replaced by the Porsche Carrera Cup North America starting in 2021.