https://www.cambridgema.gov/Departments/electioncommission/news/2023/11/...
These are "preliminary unofficial" results.
They reflect all the ballots that were counted by machine on election night, but do not reflect any ballots that were not so-counted.
All of those other ballots are being counted by a combination of hand and machine by election workers. When they are done we will get another round of election results....but still not final.
So, be patient until we get the final, final results.