I seem to remember a thread here from someone running FIDE rated quads in Virginia. The idea was to have three rated players and one unrated player. Did these ever happen? I can’t find the thread, or I’d ask there.
The reason I’m asking is that someone mentioned to me that FIDE wouldn’t rate round robins unless four players were rated.
Alex Relyea
You could try checking the FIDE website, but I find the FIDE handbook difficult reading.
From the FIDE Handbook:
6.3 In a round robin tournament at least one-third of the players must be rated.
6.31 If the event has less than 10 players, at least 4 must be rated.
6.32 In a double round tournament with unrated participants, there must be at least 6 players, 4 of whom must be rated.
6.33 National Championships played as round robins shall be rated if at least 3 men (or 2 women in events exclusively for women) participants had official FIDE Ratings before the beginning of the tournament.