From 2006 through Saturday’s loss to Iowa State, Iowa is 28-11 straight up as a double-digit favorite. Those losses include Northwestern three times, Iowa State twice, Minnesota twice, Indiana twice, Central Michigan and Western Michigan. Iowa has covered in just 13 of those 39 games. This season, Iowa is 0-3 against the spread (2-1 overall).
As for the rest of the Big Ten, nobody is even close to Iowa with those numbers, either against the spread or straight up. Here’s how Big Ten teams have performed as double-digit favorites starting with the 2006 season:
Ohio State — 38-27-1 (against the spread); 63-3 straight up
Wisconsin — 28-20-1 (ATS); 48-1 straight up
Nebraska — 24-26-1 (ATS); 45-6 straight up
Penn State — 22-16 (ATS); 38-0 straight up
Michigan — 20-17 (ATS); 36-1 straight up
Michigan State — 14-18-1 (ATS); 30-3 straight up
Rutgers — 14-16 (ATS); 27-3 straight up
Iowa — 13-26 (ATS); 28-11 straight up
Illinois — 12-12 (ATS); 21-3 straight up
Purdue — 9-13-2 (ATS); 22-2 straight up
Northwestern — 8-13 (ATS); 18-3 straight up
Indiana — 8-7 (ATS); 14-1 straight up
Maryland — 7-8 (ATS); 13-2 straight up
Minnesota 6-7 (ATS); 10-3 straight up