Two brothers, born just ten months apart, have achieved outstanding results with each gaining 12 A* grades.
Sixteen year-olds Aan Son Khoo and Ban Son Khoo, who is the younger of the two, took an identical set of exams at King Edward VI School, Aston, Birmingham.
The brothers, from Smethwick, Sandwell, sat biology, chemistry, physics, English literature, English language, history, information technology, geography, maths, music, religious studies and Spanish.
Aan Son also achieved a top five mark in English literature, out of more than 360, 000 candidates nationwide.
"I wasn't really worried about my results. I was more nervous about my job interview at the library in Sutton Coldfield," he said.
"But I was amazed about my result in English literature, I just ran out of time in the exam before I'd finished. I thought I'd not done it."
Ban Son said: "We have always worked together. There is a friendly rivalry between us, that always helps.
"I've always looked up to my brother, he helped me achieve this."
Both boys are planning to take A levels hopefully followed by moving on to either Oxford or Cambridge.
Aan Son said: "Possibly I'll follow that with a masters at Harvard."
Ban Son said: "I think I would have burned out by then."
* At Five Ways King Edward VI School, in Bartley Green, Birmingham, 16-year-old Jodie Cole received ten GCSE grade As. The Harborne teenager said: "I put in six hours a day revision in the run-up to my exams and it all feels worthwhile now."