CHARLESTON, S.C. (WCBD)- William Cogswell and John Tecklenburg are headed to a runoff in the race to become mayor of Charleston.

Unofficial results from the South Carolina Election Commission show Cogswell with 36 percent of the vote and Tecklenburg with 32 percent.

The remainder of the vote was split between four challengers — Mika Gadsden, Debra Gammons, Clay Middleton, and Peter Shahid.

The Charleston County Board of Elections said a candidate must win at least 50% of the votes plus one to avoid a runoff. No candidate met that threshold, triggering a runoff between the two candidates who received the most votes.

Tecklenburg, whose held the mayor’s office since 2016, said he feels confident heading into the runoff election, which takes place two weeks from Tuesday.

“I’m uplifted by the number of calls I’ve gotten from supporters of the other candidates this morning who are coming into Team Teck,” he said. “We’ve going to be busy over the next couple of weeks connecting with those voters and more.”

Cogswell, a real estate developer, said the results of Tuesday’s election show the city is ready for a change in leadership.

“I think people want to see positive progress forward for our city, not just talk and again that was clear at the ballot,” Cogswell said. “I think it’s just time for a different approach and I think I have the experience and expertise both in the public and private sector side to bring about meaningful change.”

The runoff election will be held on Nov. 21.