Well, the US did get away with blowing up a lot of Iranian stuff, without suffering much physical damage of its own. It destroyed Iran's navy and air force, and killed a lot of top leaders.

You could call that a win, if it weren't for the fact that the US is (apparently) paying 1/3 of a trillion dollars in restitution.

I think you could justify saying that it's a tie, rather than a surrender, if you squint just right.