RIOT ANSWER ME!

ok so i ended last season silver 3. had a ok off season, came in and crushed provisional games. i went 9-1 (only reason for loss is because we had an afk the last game) and riot thinks that i should be placed into bronze 2? i mean fucking really? how is that even possible. according to lolking.net i went from having 1312 LKS all the way down to 1010 LKS. how is this even possible? i checked almost every game i played and the vast majority of the players i played with or against were high silver from last season. please i beg you to tell me how my mmr can dive that fast after playing so many great games.