My dog is on a two axis, overhead tether arrangement that gives her a range that almost covers the full extent of the back yard. She's quite well adjusted, thought the squirrels tend to stay just out of range. We can easily play retrieve (a ball or any of her favorite sticks pulled from the kindling piles) when she is "on the hook".
Did you build it or buy it somewhere? That's not usually what is meant by tethering.