How about a sport where posh people prance about on horse, all they would have to do is WALK the horse in various directions on a square pitch and whoever looks most stuck up wins.
Speed golf, it isn't about the number of shots, it is about the time to complete the course. All 4 competitors tee off at the same time and it is the person who completes all 18 holes first. No caddies, have to carry all clubs. Risk of injury being hit by stray golf balls.
Golf without clubs, have to pick up the ball and luzz it towards the hole, lowest number of throws win.
Handicaped athletics, like greyhound racing, competitors are started at different points on the track depedning on rating to even it up.
Tag-team boxing, no rounds but if someone is taking a battering they can tag in their partner.