I haven't had dogs for that long, but the longest race my mutts have been on ended up in the next town, literally. Ok, the next town is about 3 miles.
They had the biggest, fattest sow I have caught bayed in a creek when I finally got there. That hunt made me proud of my dogs, it was about the fifth trip to the woods for my LJ pup when I started him and he was there every step. My red dog I had been hunting for about 3 mo at the time. Good memories.