"The Chudley Cannons," said Ron, pointing at the orange bedspread, which was emblazoned with two giant black C's and a speeding cannonball. "Ninth in the league." (CS3)
Quidditch team based in Chudley (thought to be the Muggle town of Chudleigh in Devonshire, England)
robes: orange (CS3, QA7)
logo: two black Cs and speeding cannonball (CS3, QA7)
club motto: “We shall conquer” (pre-1972), “Let’s all just keep our fingers crossed and hope for the best” (after 1972) (QA7)
Although they have a well-earned reputation for losing, they did win two games and draw one, after a sixteen game losing streak (their worst season in fifty years). This was documented in a series of articles in the Daily Prophet (DP1, DP2, DP3, DP4). However, Albus Dumbledore, a Puddlemere United fan, doesn't think much of the chance of the Cannons' sustaining any kind of winning record (DH33, QA).
Chudleigh, the Muggle town in Central Devon that is probably "Chudley", does not have any sports teams in its Wikipedia listing (Wikipedia: Chudleigh).