Agility is a dog sport in which a handler directs a dog through a predetermined pattern of obstacles in a race for both time and accuracy.
A course usually has 15-21 obstacles, like tunnels, jumps, tire, weave poles, and contacts.
In a trial (aka competition or show), the dog runs the course off-leash and the handler can’t touch the dog. The human half of the team relies on body language and verbal cues, to tell the canine half where to go.