Ranked placements are messed up??? Not showing my tenth game That I played

I just finished my 10 provisional games to enter the ranked season only to find out 8-2 was not good enough at all

Anyone want to explain why I got b5???? 8-2 74 kills - 41 deaths - 105 assists 9 double kills 2 triple kills 0 quadra 0 penta

In order of play

1. Soraka - Loss - 1/6/11
2. Nautalius - Win - 4/5/11
3. Fiddlesticks - Loss - 12/13/8
4. Lux - Win - 12/3/8
5. Lux - Win - 4/0/13
6. Lux - Win - 8/3/14
7. Lux - Win - 3/2/6
8. Lux - Win - 11/2/9
9. Lux - Win - 14/7/13
10. (MISSING GAME FROM MY RATING) GNAR - WIN - 5/2/12

Please explain in comments below...

I know my score isn't great....and I realize there is a multitude of room for improvement but i really do not deserve bronze 5