The Hawkeyes advance to play top-seeded Nebraska on Friday.
Jaylin Davis hit his league-leading 11th home run of the season as the Kernels beat Clinton 9-2 to split the series.
Highlights of Kennedy's sweep of Dubuque Senior
Marion wins 6-2 and advances to play Mount Vernon.
Linn-Mar won the Metro Baseball Tournament for the first time since 1994.