MADISON, Wis. (AP) -- Wisconsin athletic director Barry Alvarez has signed a contract extension to stay at the school until Jan. 31, 2021.
   Wisconsin announced the extension on Wednesday. The school said that he had a successful performance review with Chancellor Rebecca Blank.
   Financial terms were not immediately announced.
   The 69-year-old Alvarez has been athletic director since 2004, following 16 seasons as Wisconsin football coach. He built the Badgers program into a consistent Big Ten winner.
   Off the field, the school said Wisconsin athletes have achieved a cumulative 3.0 grade-point average consistently since 2009-10.
   Alvarez is coming off a busy few years with high-profile coaching hires in football (Paul Chryst) and men's hockey (Tony Granato). He also elevated Greg Gard from men's basketball assistant to head coach following the midseason retirement of Bo Ryan.