Racism was predicted to be the main World Cup problem because of longstanding issues in Russian soccer and other European fan bases.
Three games an the U-17 World Cup in 2013 preceded a call-up the following year for the World Cup in Brazil, where Pitana supervised four fixtures, including France v Germany in the quarter-finals.
Powar spoke of "an interesting tournament" in which fears of racism from Russian fans had not materialized, saying: "The Russian people played a magnificent role, there were no issues from Russians to report".
"The only thing we have really flagged up which has been significant has been the level of sexism which has been encountered by some women, often Russian women who have been confronted by fans", he said.
It has been monitoring games and says it has "documented more than 30 cases".
Gareth Southgate: England will play Belgium with 'huge pride'
Gareth Southgate consoles England goalkeeper Jordan Pickford at the end of the semifinal in Moscow. "We lived the dream". A more downbeat message from the Guardian alongside an image of Southgate hugging Kyle Walker.
"If you come to this tournament with prejudices, and don't like people from a different nationality, then generally you're in the wrong place", he said.
Federation Internationale de Football Association also named Alireza Faghani of Iran as referee for the third-place game as Belgium play England in St. Petersburg on Saturday. The fines started at 10,000 Swiss francs ($10,100) for a first incident.
It is understood that more than 20 supporters were identified by the authorities and they lost their FAN-IDs and were sent home.
Federico Addiechi, Fifa's Head of corporate social responsibility, said the body needs to help tackle sexism at the World Cup that ends on Sunday, and one way of achieving that is by broadcasters minimizing the cutaways images they show especially of attractive women attending the matches.