Results of the 2021 Anchorage mayoral runoff election by precinct, coloured by the winning candidate's vote share in each precincts. Precincts shapefile from https://elections.alaska.gov/Core/districtmaps.php http://www.elections.alaska.gov/doc/info/2013-SW-Precinct-Proc-Plan.zip with shapefile of Anchorage's outline from https://www2.census.gov/geo/tiger/GENZ2020/shp/cb_2020_us_county_within_cd116_500k.zip, election results data source from https://www.muni.org/Departments/Assembly/Clerk/Elections/Pages/ResultsAndHistory.aspx https://www.muni.org/Departments/Assembly/Clerk/Elections/Election%20Results/StatementOfVotesCastRPT20210511Excel.xlsx, mapping done with the help of Microsoft Excel, https://mapshaper.org, and Inkscape.
Dave Bronson:

  50–60%
  60–70%
  70–80%
Forrest Dunbar:

  50–60%
  60–70%
  70–80%
Own work
Twotwofourtysix