I'd say the fanfare would be a toss up. If has a definite melodic section that feels like a processional, probably okay. I'd consider Williams "Olympic Fanfare and Theme" a march. I would not consider Stamp Gavorkna Fanfare a march. On the other hand, I consider Vaugh Williams 'Flourish' a march, although many would say no because it is in three. If in doubt, call your Region Sec. They are the one going to asked to make the call if there is a question. If they tell you okay, and a judge questions it at contest, all they can say is - "He/she asked and I said it was okay." The end.