Sorry, there isn't one. With the savannas surrounding KV and Jambo House, there isn't anywhere to run on site. You'll either have to stick with a treadmill (and that would be majorly boring) or run somewhere else. You might try running over at WL and Fort Wilderness. When you run around FW, there are multiple roads that you can run around. Just watch out for the buses and golf carts.
And Disney security won't allow you to run on the roads off the resort.