Ira Jourdain will remain on the November ballot for the citywide school board seat.
The city recounted 29,000 ballots Tuesday after Doug Mann, who finished fifth in the August primary, asked for the recount because he had 50 votes less than Jourdain.
Jourdain had 49 votes over Mann after the recount, which lasted more than 6 hours.
There were six candidates in the primary for two at-large school board seats. Only four candidates advanced, including Jourdain, the incumbent Rebecca Gagnon, former city council member Don Samuels and Iris Altamirano.