Denn received 305 votes and Becker 205 in the race for Becker's at-large seat in Tuesday's primary election.
Challenger Barbara Stockhausen finished third, with 160 votes. Stockhausen will be on the ballot April 2, however, running against District 1 Ald. Mike Dalecki, the council president.
In the other race on Tuesday's primary ballot, Supreme Court Justice Pat Roggensack received 362 votes in Platteville, finishing ahead of Marquette University Prof. Ed Fallone, with 230 votes, and attorney Vince Megna, with 52 votes.
A total of 687 votes were cast in Platteville, according to the City Clerk's office.