中西部的娃中学玩数学竞赛和在州大修课的到大学都没问题包括顶尖私校和公校

I have no doubt at all!! Just like I am super confident that my son will do just as good as his collegemates who come from CA or NY city.

what I want to say:

it is different bt staying in mid-west to continue and transferring to CA or NY city. The examples I share are kids who were transferred to CA. They were frustrated and lost confidence. Their maths team friends who stay here actually did much better, both in maths competetion and in college admission.