Bentley ran 4.79 miles. I keep him at my left side the whole time. He starts to slow down after about 3 miles. However, as soon as we got back in the yard today, he brought me his ball and wanted to play 🙂 He gets pretty excited when other dogs bark at us behind fences, so I usually make him sit and relax for a second if he tries to pull. He listens well when I tell him to sit.