Gwen: Not working with Geoff and treating him terribly until he was voted off: F

Geoff: Maintaining an optimistic and playing cool throughout the challenge: B

Heather: Insulting Izzy and not helping Owen at all: D

Leshawna: Standing up to Duncan until she got her own way: A

Owen: Putting up with Heather and all of her garbage: B+

Duncan - Annoyed LeShawna and didn't do well in the challenges overall. C

Geoff - You pretty much played throught the challenges very well and stayed cool all the way. A-

Gwen - You treated Geoff badly and yet, didn't do good in the challenges. C-

Heather - Very bad week. You insulting Owen and his interests and you lost and didn't give any effort. F

LeShawna - Got insulted by Duncan but you didn't give up. B-

Owen - Played the challenges good and had to put up with Heather's insults. B

Also, maybe you should ask maritimer about making "Campers Grades" from past episodes before making them.