A STUDENT at an elite Sydney private school who scored a uni admissions rank of 99.95 out of 100 in 2008 has lost an appeal alleging discrimination stopped her getting full marks.

Abbotsleigh student Sarah Hui Xin Wong’s mother Eileen complained to the Administrative Appeals Tribunal that the Board of Studies had unlawfully discriminated against Sarah because they didn't provide her with adequate special provisions to help her write her exam essays.

Ms Wong, 21, has hyper joint mobility of the wrist. She received some rest breaks during the exam.

The family told the tribunal that Ms Wong would've got much higher marks if she had access to a computer or extra rest time during exams.

Ms Wong's marks won her a place in a medicine degree at Sydney University and she came fifth in the state in chemistry.

She was offered a writer to dictate her essays to but chose not to do that.

Bloggers at the study discussion website Bored Of Studies speculated the student had a Tiger Mother, someone with very strict expectations of their children.

"This whole thing is a ridiculously embarrassing joke," one 2010 HSC graduate wrote.

Read Dan Piotrowski's analysis on The Punch.