The phrase "home fans" refers to the group of supporters who are cheering for the team or players that belong to the same place or city as them, usually during a sports event or a performance held in their home stadium or venue. Full definition
There were plenty of home fans, though they made no attempt of communicating, and many of them did not seem to be local. (footballgroundguide.com)
The Dutch sub drew one of the biggest cheers of the night from home fans (although they were being sarcastic) when he had this hopeful shot at goal shortly after coming on. (caughtoffside.com)
Another published study found that the referee bias is larger if there is no running track around the stadium to separate the officials from screaming home fans in close proximity. (espn.com)