You may have noticed in the Sioux schedule that WCHA teams do not play home and home series against each other. Each team has a so-called "rival", who they play home and home against every year (in the Sioux's case, that's SCSU). Everyone else rotates among 1 series at home, 1 series on the road, and a home and home series. For example, last weekend's Gopher series is the only one between the 2 teams this year. Next year the Sioux will play one series at MN, and the following year will have a home and home once again.