I agree there are different levels of Gameness, but in my experience you can't measure it by time. I can only gauge Gameness by watching the individual work. If a dog doesn't take bottom or any significant damage in my opinion, he isn't proven to be game. I can't say that a 2hr dog is game without seeing him work, and I can't say that a dog that lost in 40 is a cur without seeing the hunt. You'd be surprised how many people cant tell the difference between shock & quit.... And a dead game dog is useless and only good for a good story to tell. JMO