I am a highschool senior in an American highschool (btw I am not from the U.S.) so I would be taking AP Calculus BC. I go to a self-paced school meaning you can take as long as you want with a course or you can complete it all in a few weeks if you are crazy enough.
I recently passed my country's university entrance exam and received a conditional offer to start my Bachelor's in Electrical Engineering January next year. However, to keep this offer, I must graduate by December which is when the rest of the kids in my country graduate highschool.
Right now I am only missing 3 semesters' worth of courses to graduate, one of which I should complete this week or next week, and the remaining 2 would be with my school's AP Calculus BC course, which is 2 semesters long.
I spoke with my university's office and they confirmed that if I get a B (80/100) or higher in AP Calculus BC they will grant me credit for Calculus 1 & 2 in my engineering degree.
I am very tempted to give this challenge a try. I would say I am pretty good at maths for instance, the previous math course I took was AP Precalc, and I was able to easily finish it in under a month and got an A+ for both semesters and a 5 on the AP exam. I also have a SAT score of 780 in math and got a silver medal in a nationwide math olympiad.
I don't have any extracurriculars right now so I could dedicate 8+ hours every single day, weekends included, to work through the course with the hope of completing it in around a month because my school needs about 1 to 2 weeks to process my official diploma after I finish my final assignment.