Union whipped Waterloo Columbus 42-0 to snap a 4-game losing streak and finish the regular season 5-4.
The Sailors, which won their first game since 2011 two weeks ago, would finish the season 1-8.
Four different Knights scored touchdowns in the first half as Union built a 28-0 lead.
Hawkeye recruit Jay Scheel accounted for two first-half scores as he ran for one and passed for another.
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