[D] Why do some competition organizers hide the leaderboard? (Regarding my experience in IEEE SP Cup 2022)

I don't understand why organisers of an competition would hide the leaderboard, specially in a machine learning and signal processing related competition.

We participated in IEEE SP Cup 2022, sacrificing nearly 2 months of our time and and some sleepless nights. The organizers never said anything about keeping the leaderboard of the competition hidden. In the first round they gave us an access to a website where we can submit our predictions and get our score privately. There wasn't a …

competition experience hide machinelearning