I have to say I agree MRhe, beer guts don't typically git in my definition of excellent shape, although neither do I. Token Fat Guy can be relative as well.
Well I'm going to have to disagree with MRhe, He is a trainer and leads a few aerobics classes, while he fall into the trainer job rather late in life, which explains the beer gut. He won't be running many marathons however, and he isn;t much of a "musclehead".
My definition would probably fall more towards the runners and cardio as well. If your the fat guy in the group Tecmo you should find fatter friends I find it much easier than running.