A "distraught" AS-level student who received two Ds and a U despite being predicted straight Bs has been left 'worried about her prospects'.
Abbie Cooper, from Cwmbran, Wales, said it felt like there was a "letter generator" which gave out grades.
Disappointed with her results, she said "how can I go anywhere with these" - and she is not the only one left feeling there has been injustice.
Abbie, 17, told the Press Association yesterday: "Last year, I couldn't attend college a lot due to anxiety and mental health issues but any time I did a mock or a piece of work, I'd still get a D, a C or a B.
"The Ds that I did get had been improved to a B and a C at the end of the year, and my predicted (result) at the end of the year was a B-B-B.
"I thought I'd pretty much secured at least a C, but I checked my results this morning and it said U-D-D."
Abbie, who attends Coleg Gwent, received D grades in politics and psychology and a U in biology and is now worried about what the results will mean for her university prospects.
"It kind of feels like they just got a number generator or a letter generator and given you a grade based on that," she said.
"It sucks because I need these to apply for university next year because these are my predictions for university. How can I go anywhere with these?"
Abbie, who is a member of the Welsh Youth Parliament, said she knows many people whose grades were lower than they were expecting.
Abbie said: "I'm quite distraught. But I'm good in the sense it's out there now and people know and if people are in the same boat they know they're not alone.
"I know people who were predicted A*s and they've been getting Bs. It's awful."
She hopes to appeal over her grades.
With no exams possible this year because of the pandemic, teachers were asked to submit the grades they felt each student would have achieved and a rank of all their pupils.
Exam boards then moderated the grades to ensure the results were broadly in line with previous years.
Student gutted after predicted As downgraded to a D
Chloe Ray who was predicted straight As has told of her disappointment after she opened her results.
The student, from Elswick, had been awarded a D in her physics A-level following national moderation – significantly lower than the grade her school originally predicted.
'I put unimaginable effort into my studies'
Laura Hodgson says she 'put unimaginable amounts of effort' into her studies at Pendleton Sixth Form in Salford, studying for A-levels in biology, chemistry and a diploma in sport and exercise science.
But despite being predicted A and B grades, she was awarded two Cs, along with a distinction for her diploma.
"I logged on at 8am and saw the Cs and just started sobbing for about an hour," Laura told the MEN.
"I just feel angry about it. When you get results from doing exams then you've only got yourself to blame if you do bad, but this has been out of our control.
Pupil says his future is 'up in the air'
Thomas Chandler, 18, Richmond, North Yorkshire
A pupil has told how he feels left dangling after failing to be awarded an A* in either English literature or German to study Classics at Cambridge.
Thomas was graded As for both, scoring an A* in art.
He said: “It’s frustrating. I was getting A* in course work and in class. Cambridge are waiting to decide.”
He hopes to have his English literature upgraded. He said: “Everyone else can celebrate and I am left up in the air.”
'I feel I can't fully own my results'
Ranya Kumar, 18, from Norwich, plans to study medicine at Cambridge and got four A s – on top of an A in maths last year.
But despite being happy to get the grades, it was difficult to know they were awarded by algorithm.
She said: “I feel I can’t fully own my results, which is a hard feeling. But as long as you get to the next stage, that’s what matters.”
She said there “always will be” a stigma around results awarded this year “but when you get to university you will earn it again”.
Student rejected by university feels 'let down'
Joseph Rice, 18, from Darlington, County Durham, has been rejected by Warwick University, where he had applied to study maths.
He scored A in maths and physics and As in further maths and chemistry. He needed an A in further maths for Warwick.
He said: “I’m a bit baffled as to why I have got an A and didn’t receive A*. Obviously I’m extremely disappointed.
“I cannot do the course I want, I feel like I have been let down.”
He plans to lodge an appeal.