You shouldn't have exulted until the tournament was over. Only one Iranian placed first. Ironically, the big champs and other experienced Iranian wresters lost (Soryan to Mordovin) and it was a newcomer who won the gold medal.
The Iranian who won the gold at 84kg (Nematpour) was the same who won nationals. Tahmasebi did not compete at nationals becuse he won gold at the Asian Championships so it may come down to a wrestle off.