Congratulation for itch.io: it's very interesting.But I don't understand a thing: where I can look the classification (ranking) of a jam? Can I know the ranking of my submission ? Thank you.
You didn't answer Wechenbetelly's question. Beware that entering the same game in a lot of jams, especially if they're not good fits, can get you banned from future events. Jam organizers talk to each other, and they don't like spam.
Games in a jam aren't ranked until the voting period is over. Assuming the jam is ranked in the first place. Not all of them are. Check with the organizers!