I (we) could be wrong, but I think the Iran game will be a tough, grind it out contest. I think it’s 55/45 we win.
One concern is that this US team was inconsistent during qualifying. I don’t recall them putting two consecutive great performances together without a letdown game between (they won several games that were closer than they ought to have been).
I think we need to be at our best if Iran is at their best, to win. I don’t think either team can come out flat and expect to still win. OTOH, GB has England‘s very successful approach to Iran on film to study. I am not so sure the Wales game provides as much useful info to Iran.