2023 Official IMSA Spotter Guide

Latest Guide : 2023 Motul Course de Monterey
Latest updates: V1.2 May 13 9:30 AM PST – #9 Pfaff Porsche, #80 AO Racing – updated liveries. #80 AO – driver change

Welcome to the home of the 2023 Official  IMSA Spotter Guide series.

This page will be active throughout the 2023 season with guides, updated during race week. Each guide will feature all the entries in the IMSA WeatherTech Sports Car Championship and the IMSA Michelin Pilot SportsCar Challenge.

This release covers the the WeatherTech Raceway Laguna Seca round of both championship. In the WeatherTech series, we have the new GTP class which joins LMP2 and the two GTD classes. Michelin Pilot sees a strong grid of GS (GT4) and TCR cars.

The Lamborghini Super Trofeo championship also starts this weeekend at Laguna Seca. You can download the official guide for these two races HERE.

If you are attending the race, a printed booklet will be available at the circuit, this went to press a couple of weeks ago, so there are a few driver changes to entries including the withdrawl of NTE Sport in GTD.


A season long Spotter Guide t-shirt and poster is also available from the IMSA Store at the circuit and online at the IMSA Store.

I am extremely fortunate to have a number of liveries racing in IMSA this season Thanks to these teams, sponsors and driver for allowing me to make my hobby a career. These were the cars running at Sebring back in March.

Thanks to IMSA for partnering with the guide. If you have found the guide useful, please feel free to thank IMSA on Twitter. Without their support, there would be no guide. Thanks to all the teams who have helped with creating the guide.

Special thanks to Shea Adam and Paul Marquardt for their awesome proof-reading skills for this initial guide.

Thank you to the fans, corner workers and media who have continued to support the Spotter Guides over the years. Your support is always appreciated.


If you enjoyed the guides, let IMSA know 😉


NOTE: Please feel free to share the guide on Social Media, but PLEASE LINK TO THIS PAGE and not the guide (as file names change with updates, particularly with the month change this week) 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

Previous rounds:

1. Daytona
2. Sebring
3. Long Beach