2018 Official Porsche GT3 Cup Challenge USA Spotter Guide

Latest Guide: VERSION 1
Latest Update: 1 May 2018

Welcome to the Official Spotter Guide for the 2018 IMSA Porsche GT3 Cup Challenge USA by Yokohama. A championship sanctioned by IMSA. The Guide was also commissioned by IMSA,

Note: This is a season long Spotter Guide, so actual entry list on a race by race basis may vary. Hard copies of this guide are also available at the track from the IMSA Support Paddock


Thanks to IMSA for partnering with the guide If you get a few seconds, please thank IMSA on Twitter. Without their support, there would be no guide.

NOTE: Please fill free to share the guide on Social Media, but PLEASE LINK TO THIS PAGE and not the guide (as file names change with updates) so your friends and fans can download the latest version of the guide! I can also track data easier which in turn helps my quest for sponsorship

The Porsche GT3 Cup Challenge USA Spotter Guide is produced by Andy Blackmore Design with assistance from IMSA and Porsche Motorsport North America.