Although Democrat Cathleen Galgiani leads Republican Bill Berryhill in the race for the open 5th State Senate District seat, it looks like a probable winner won't be determined until Saturday.
According to the California Secretary of State's Office, Galgiani had 140,673 votes (50.4 percent) as of Thursday afternoon, while Berryhill had 138,470 votes (49.6 percent).
San Joaquin County Registrar Austin Erdman says an update will be posted online Saturday, but he will continue to double-check ballots throughout the weekend before certifying the election.
The county Board of Supervisors is scheduled to adopt a resolution adopting all elections in the county on Tuesday.
The 5th State Senate District also includes a portion of Stanislaus County.