ranked.vote: San Francisco / Board of Supervisors, District 4 / 2008

ranked.vote // San Francisco Board of Supervisors, District 4

The San Francisco Consolidated General Election was held on November 4, 2008. Carmen Chu was the winner out of 3 candidatesafter 1 elimination round.

Carmen Chu was also the Condorcet winner.

Carmen ChuRon DudumDave FergusonEliminated in round 1Write-InEliminated in round 1

Runoff Rounds

This Sankey diagram shows the votes of each remaining candidate at each round, as well as the breakdown of votes transferred when each candidate was eliminated.

Note that the tabulation (but not the winner) may differ from the official count. You can read more about why this is.

Round 1Round 2Carmen ChuRon DudumDave FergusonWrite-InExhaustedCarmen ChuRon DudumExhausted

Pairwise Preferences

For every pair of candidates, this table shows the fraction of voters who preferred one to the other. A preference means that either a voter ranks a candidate ahead of the other, or ranks one candidate but does not list the other. Ballots which rank neither candidate are not counted towards the percent counts.

Less-preferred Candidate
Preferred Candidate
Carmen Chu
Ron Dudum
Dave Ferguson
Write-In
Carmen Chu 58.4% 72.3% 99.2%
Ron Dudum 41.6% 68.8% 99.5%
Dave Ferguson 27.7% 31.2% 99.3%
Write-In 0.8% 0.5% 0.7%

First Alternate

For every pair of candidates, this table shows the fraction of voters who ranked one candidate first ranked the other candidate second.

Second Choice
First Choice
Carmen Chu
Ron Dudum
Dave Ferguson
Write-In
Exhausted
Carmen Chu 40.1% 25% 0.1% 34.7%
Ron Dudum 34.5% 34.9% 0.2% 30.4%
Dave Ferguson 34% 41.8% 0.3% 23.9%
Write-In 13.2% 15.1% 15.1% 56.6%

Final Vote by First Choice

This table tracks which candidate ballots were ultimately allocated to, among ballots that ranked an eliminated candidate first.

Final Round Choice
First Round Choice
Carmen Chu
Ron Dudum
Exhausted
Dave Ferguson 34% 41.8% 24.2%
Write-In 13.2% 28.3% 58.5%

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