“This gives me even more opportunity to hate the B.C.S.,” Frederick said.

Ashley Jones, 26, plans to marry on Oct. 13 in Manhattan, Kan., home to Kansas State, her alma mater. She had trouble finding a hotel to host her reception, she said, and the prices kept changing, depending on whether Kansas State would have a home football game that weekend. She finally found a ballroom that would accommodate her, but fears her wedding guests might have to book rooms a half-hour away if the Wildcats end up playing in town.

“I wanted a fall wedding, so I’m sticking to my date,” said Jones, who works for a sportswear company. “I’m not stressing out too much. I hope to keep it that way. But it would be so much easier if we had the schedule.”

Lisa Webb is a sales assistant at the National Center for Employee Development conference center and hotel, which has 964 guest rooms, in Norman, Okla., site of the football-mad University of Oklahoma. Those who inquire about weddings, family reunions, conventions, conferences, anniversaries and bar mitzvahs for next fall are told that the hotel must first honor its contracts with the university, Webb said.

“We have to have the schedule before we can book other things those weekends,” Webb said. “It’s definitely causing an issue for all the hotels.”

At Texas Tech in Lubbock, a private club in the football stadium features on its Web site a photograph of a wedding cake situated on a table overlooking the playing field. Weddings, receptions and rehearsal dinners can book the club, but for the fall, “I have my hands tied,” said Kristen Datko, the club’s private events director. “The university is our landlord.”

Event planning had not been such a chancy issue at a previous job in the Atlantic Coast Conference, said Datko, a graduate of Florida State. “When I worked at a club there, we hardly had weddings during football season,” she said. “That time of year was devoted solely to football.”

Baylor is located in Waco, Tex., and bills itself as the world’s largest Baptist university. There have been no fall wedding disruptions so far, given that the football stadium is not on campus and the university has five chapels and the library available for betrothals, said Jane Gunn, Baylor’s associate director of event services.