Except Golf doesn’t have a clear winner, not at club level. Scratch comps maybe, but try shoehorning the handicap system into a definition of sport.
Golf does have a clear winner, whoever bats it around in the least number of shots. Simple. The handicapping system is something that golf has introduced to level the playing field for social golfers in order to include more of them. If clubs only played scratch comps then comps would be very empty indeed, although that is obviously the purest form of the game. It is a manipulation of the system to encourage participation.
At the highest level it is literally the least number of shots that provides the winner, in most club comps it is the person taking the least number of shots after h/c has been counted. Still a clear winner, no judges involved.
The one I find hardest to square is boxing. Clearly a sport but judges cards spoil the clear definition. There is always one......