Question

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends. What is it?

Answer 1

Boxing
While scoring the match, three judges, usually at ringside, give scores for each boxer in every round. They follow a 10-Point Must system, wherein the winner of each round automatically gets 10 points, while the loser gets 9 points. If the loser's opponent scores a knockdown, the loser merits a further 1-point deduction, or a 10-8 score.