What does TDX signify in dog training?

In dog training, TDX stands for "Tracking Dog Excellent." This title is a designation used in tracking tests that assess a dog's ability to follow a specific scent trail.

The "Tracking Dog Excellent" title is one of the levels within tracking dog titles, indicating that the dog has successfully completed the required exercises to demonstrate advanced tracking skills. This includes the ability to track and locate an object or individual over longer distances and more complex terrain, showcasing the dog's proficiency in scent tracking and its ability to work independently.

The other options, while they sound reasonable, do not correspond to established dog training titles. "Tracking Dog Expert" and "Training Dog Excellence" suggest levels of skill but lack the formal recognition associated with dog tracking titles, while "Training Dog Extraordinaire" is not an official designation recognized in the tracking community. Therefore, the correct answer accurately reflects the terminology used within the field of dog tracking.