In a tight District 3 race for Seattle School Board, Michelle Buetow has inched closer toward facing incumbent Harium Martin-Morris in the Nov. 8 general election.

But John Dunn, another challenger in that race, remained within 291 votes of Buetow on Wednesday. The top two will advance to citywide voting in the general election.

The District 3 race is the only one of four Seattle School Board races that remain close.

King County Elections released results of 45,822 additional ballots counted Wednesday; of those, 3,389 were in District 3 of Seattle Public Schools, which covers Seattle's east-central edge.

All four incumbent board members will advance to the general election. Only Peter Maier took more than 50 percent of Tuesday's vote against challengers, who had sharply criticized the current board's stewardship over a tumultuous four years.

In ballots counted Wednesday, Buetow, an Eastlake marketing consultant, more than doubled her 120-vote Election-Night lead over Dunn, former president of Seattle's teachers union.

"The numbers are going in the right direction," Buetow said.

King County Elections has an additional 50,872 ballots verified and ready to count. It received nearly 70,000 ballots Wednesday and will begin verifying signatures on those, said elections spokeswoman Kim van Ekstrom.

Jonathan Martin: 206-464-2605 or jmartin@seattletimes.com