Apologies for coming across as arrogant. The OHS program is a very competitive program to get into (per anecdotal evidence and @OneMoreToGo2021’s post), so a good score might help.
As for my situation, the friends I mentioned were all in an highly accelerated GT program and didn’t study whatsoever. I had to learn many new concepts in math spending 4+ hours per week, which is why I was teased (I had a bad friend group in middle school).
I just meant that, as has been echoed by @izrk02, any score is possible. You mention that your student is in a GT program – with some studying, I have full confidence that they will achieve the score they want.