This is not a mistake of the website. When the playoffs were entered, "2017-12-03" was entered as date for the 3^rd round in Championship A, instead of "2016-12-04". I guess the executive who set up the playoffs unintentionally changed the year instead of the month without noticing it. Championship B and C were not affected. The logic of the website always calculates ratings in order of dates played, and ignores matches or games played on a future date. The preset date was added to the match information. so the database contained 2 matches played in the future.

I have fixed the date for the two semi-finals matches in Championship A, and recalculated the season, so all ratings should show correctly now.