Minister for Sport Helen Grant visited her constituency to highlight the Government's offer of tax breaks for sport clubs around the country but was stumped when it came to answering questions on the subject.
ITV Meridian asked the MP for Maidstone five sports questions after interviewing her in the Kent town over the weekend but she was unable to answer any of them.
Questions included naming the current Wimbledon women's champion, knowing who won the FA Cup this year and naming the England rugby union captain, a spokesman for the regional news channel said.
Mrs Grant also did not know when Maidstone United had left the football league and which Paralympic competitor had won more gold medals than any other, a Meridian spokesman said.
He said the MP claimed that the questions were unfair but he said a test run on a group of young children saw most of them get the majority correct.
Last month, The MP for Maidstone told the Independent on Sunday that sport was in her DNA shortly after being promoted to the role of Sports Minister.
During her youth she showed sporting talent, becoming captain of the school tennis and hockey teams, and representing the county in hockey, tennis, athletics, and cross country, according to her Parliamentary website.
She later became under-16 judo champion in the north of England and southern Scotland, it said.
Mrs Grant said: "I wasn't told there was going to be a quiz thrown in at the end of an interview for local television at a grassroots sport event in my constituency on Saturday night.
"If I'd known I would have done some proper revision. My sports pub quiz knowledge may not be encyclopaedic but I completely understand the positive impact that participating in sport has on people's lives.
"That's why I was there on Saturday, to help switch on Maidstone Hockey Club's new floodlights that will mean more young people can use the facilities all through the year."