If I remember correctly (it's on a post here, somewhere), @GAmedic got something like 14,500 mi out of his Mich's (I think they were PR5s). If I get 10k total off these I'd be satisfied, anything more would be a surprise. But I'm planning 2 more canyon run trips this summer, and it's SoCal, so it's hot (one of the runs is near Palm Springs), and pavement type can make a difference, but the tires look healthy enough, and I won't mind going into debt for another set if it's < 10k before they wear out. Love these tires, and when I'm rich, I'm moving up to the Q4s.