It was explained before, a while ago.
The blue text in brackets is the time it's happening (the week).
The 1st line of white text under the blue tells you how many matches to do per day.
The 2nd line of white tells you how many days you've completed.
So far you've done 2/3 days (5 Matches each). You can't get the last prize (perfect attendance), but you can get an A Rank if you play again today for 5 rounds or more.