Sun Prairie extended its boys' division lead and maintained its girls' division lead after Monday's sessions in Wisconsin District 4 High School Bowling. Coming into Monday's boys' session at Bowling Green in Middleton, Sun Prairie led Madison Memorial 71.5-69, with Verona at 61 and Oregon 59. There are 15 boys' teams. After Monday's session, the Cardinals had extended their lead to 80.5-70 over both...