IS Joseph Krol the Bradford's smartest teenager?
The 16-year-old, of Eldwick, Bingley, achieved a total of 17 GCSEs at A* grades when he sat his exams at Bingley Grammar School this summer making it a school record.
He was also one of only eight students in the country to get full marks in his maths exam set and marked by the AQA Examination Board.
The exam board was so impressed with Joseph's efforts they sent him a congratulations letter and rang his head teacher Luke Weston.
An AQA spokesman said: “While we don’t hold any records or data on A* gains, people who are involved in marking the exams say it’s certainly not an everyday achievement. Joseph has done extremely well and deserves congratulations.”
Joseph also achieved full marks in his English language, Italian, general studies, history and French exams, his other A*s included business studies, economics, English literature, science, additional science, biology, chemistry, geography and extended project.
Proud head teacher Mr Weston said: "This is a school record and ranks among the best results ever achieved regionally or nationally at GCSE level.
"It is a magnificent achievement for one of the youngest students in the cohort, and reflects the hard work and love of learning that Joseph has displayed throughout his school life at Bingley Grammar.
"Joseph only just turned 16 at the end of August so he was 15 when he sat his exams."
Joseph, who enjoys mountain biking and working towards his silver Duke of Edinburgh Award, when not studying is now starting A- levels in maths, further maths, physics and economics.
No surprises what he eventually hopes to study at university - maths, of course.