The Door County United swim team will face some top-flight competition on Saturday when they swim at Plymouth.

Also competing in the invitational are Brookfield Academy, University School of Milwaukee, Berlin, Brown Deer, Fort Atkinson, Grafton, Kiel, McFarland, Monona Grove, Nicolet, Shorewood, Whitefish Bay, Whitnall, Edgewood and Baraboo.

First events begin at 8 a.m.