If anything I'd expect the Wrestlers and Jui-Jitsu Olympians to team up initially like the Careers, creating a powerhouse to just pick off everyone else. Between the two it would be a real toss up, Most wrestlers are familiar with submissions, perhaps not to the extent that Jui-Jitsu focuses, however Jui-Jitsu does have a tendency to go to the back as an offensive move and a boxer or runner would most likely get caught in an easy hold from their, but a wrestler, who would have a feel for the movements, the two would give each other a serious run for their money. I'd pay to see it. I'd imagine, unless their very crafty, soccer an tennis players wouldn't last too long though, not the most combat inclined.