My daughter attends OHS and there are a number of students that are not serious athletes/musicians/etc but they are very advanced academically.
The first time my daughter applied for 8th grade she was turned down and she had straight A’s high, test scores, excellent LOR, strong ECs, and good essays. When she applied for 10th grade she was able to demonstrate she had a strong social network and support system.
The workload at OHS is heavy. My daughter came from an elite private school in the DC area never had did more than an hour of work a night and managed to get straight A’s in with the most difficult classes offered. Now between her ECs and her workload she has almost no time for anything else.
OHS is the right school for the right student. If you are very organized and self motivated you will do well.
Good luck with your decision.