Rock Ridge upset Duluth Denfeld 70-57 in a Section 7AAA quarterfinal on Wednesday night in Duluth. Top-seeded Hermantown, Chisago Lakes and North Branch also advanced to the semifinals, which will be held Friday night. Howie / HowieHanson.com Howie Sports Wednesday Night Scoreboard Vikings Notebook, Wednesday Sports Events Quote Me, Howie: Erik Lofald Anderson, Superior stole the show at Summer Jam