The Marshall/Waterloo boys and Sun Prairie girls maintained their leads after Monday’s 10th week of Wisconsin District 4 High School Bowling. For boys, Marshall/Waterloo has 86 points, with Sun Prairie second at 75.5. For girls, Sun Prairie has 58 points, with East/Marshall second at 56.5 points. Twelve boys teams and nine girls teams — there were 13 and eight last year — are competing this year. With the odd number of girls teams, one team has a bye each week. The...