Judging comprises two elements:
Originality: The components match those specified for the model and commission number.
Restoration Quality: The condition of various components.
The TRA has established the following classes of cars for concours judging events:
Comprised of TR2 through TR4A cars being judged how well they compare to original new cars when they left the showroom floor. They are judged on both originality and restoration quality. The highest score of the participants in this class will be declared the Best of Show winner along with First Place in their individual class.
Comprised of cars that have won Best of Show at a previous TRA Concours event. Generally, the Premier Class car has the fewest originality issues and the focus of judging is the level of restoration quality. Entrants are awarded certificates.
Cars begin the judging process with a score of 100 points, with deductions made for deviations in Originality and Restoration Quality.
The 100 points are divided into four sections, with a detailed breakdown of components and their point allocations provided on score sheets within each judging section. The judging sections include:
A car receives a single point deduction in Underhood-Hydraulics, which is recorded on the Underhood Scoresheet.
As Underhood contributes 30 points toward the maximum of 100 points, or thirty percent, the weighted value of the deduction is 0.3 points, which is recorded on the Master Scoresheet.
Scoring Results: The weighted scores of each section are summed to produce the final score on the Master Scoresheet
A minimum score of 70 is required to earn third place, a minimum score of 80 to earn second place and a minimum score of 90 to earn first place. The highest score among all concours entrants in the Standard class is awarded "Best of Show" for that event.