I had never heard of academic decathlon but apparently it's a big, national high-school competition. Kids on the team must come from three GPA groups- A, B, and C. Each high schooler competes by taking 10 tests- you can win individual and team medals, also for an individual event or for the whole team. You can go to state and nationals for it.
The 10 events are- 6 are written multiple choice exams (science, literature, math,e tc.). One is a interview (I was a judge for that), one is a prepared speech, and one is a quiz bowl. Another is an essay you must write.
The overall topic this year is Russia. one of the kids told me for the literature part they had to read the novel Dr. Zhivago!
I don't know- it sounds like a ton of work for not a big pay-off. I had alot of fun being a judge but I don't know if I would recommend it.