How do I send one Subject Test score without sending the other?

I took Subject Test “X” and Subject Test “Y” both on the same day. There are colleges on my list that require “X” but not “Y”, and there are some that require “Y” but not “X.” I did much worse on “Y” than I did on “X,” so I would like to only send “X” to those that need one more and do not specify which one. However, the College Board apparently only lets you send BOTH of them or NONE of them, if they were taken on the same day. Any advice? Thank you so much.

I don’t believe you can. I think you have to select by date. And so you have to send all scores for a given date. So there’s not much more to say. If a school requires you to send one score, you will have to send both anyway.