ranked.vote: San Francisco / Board of Supervisors, District 9 / 2008

ranked.vote // San Francisco Board of Supervisors, District 9

The San Francisco Consolidated General Election was held on November 4, 2008. David Campos was the winner out of 7 candidatesafter 2 elimination rounds.

David Campos was also the Condorcet winner.

David CamposMark SanchezEric QuezadaEliminated in round 2Eva RoyaleEliminated in round 1Tom ValtinEliminated in round 1Eric StoreyEliminated in round 1Vern MathewsEliminated 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 2Round 3David CamposMark SanchezEric QuezadaEva RoyaleTom ValtinEric StoreyVern MathewsWrite-InExhaustedDavid CamposMark SanchezExhausted

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
David Campos
Mark Sanchez
Eric Quezada
Eva Royale
Tom Valtin
Eric Storey
Vern Mathews
Write-In
David Campos 53.8% 61.9% 82.5% 88.8% 91.4% 93.7% 99.7%
Mark Sanchez 46.2% 55.4% 81.1% 88.4% 91.2% 93.3% 99.6%
Eric Quezada 38.1% 44.6% 76.5% 84.3% 88.8% 91.6% 99.6%
Eva Royale 17.5% 18.9% 23.5% 64.2% 74.4% 81.3% 98.6%
Tom Valtin 11.2% 11.6% 15.7% 35.8% 61.8% 70% 97.7%
Eric Storey 8.6% 8.8% 11.2% 25.6% 38.2% 58.7% 96.5%
Vern Mathews 6.3% 6.7% 8.4% 18.7% 30% 41.3% 95.1%
Write-In 0.3% 0.4% 0.4% 1.4% 2.3% 3.5% 4.9%

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
David Campos
Mark Sanchez
Eric Quezada
Eva Royale
Tom Valtin
Eric Storey
Vern Mathews
Write-In
Exhausted
David Campos 34.5% 38% 6.6% 4% 1.9% 1.2% 0.1% 13.8%
Mark Sanchez 40.1% 29.9% 7.6% 4.8% 2.3% 1.2% 0% 14.1%
Eric Quezada 35.4% 35.2% 7.3% 2.8% 1.5% 0.9% 0.1% 16.8%
Eva Royale 18.9% 25.6% 14.6% 6.8% 7.3% 7.4% 19.3%
Tom Valtin 26.7% 16.5% 12.5% 12.1% 10.7% 6.8% 14.7%
Eric Storey 13% 11.4% 7.9% 15% 14.9% 11.8% 0.2% 25.7%
Vern Mathews 9.2% 17.1% 5.8% 14.7% 11.5% 25.6% 16.2%
Write-In 10.3% 7.7% 2.6% 79.5%

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
David Campos
Mark Sanchez
Exhausted
Eric Quezada 39.3% 38.9% 21.8%
Eva Royale 27.1% 34.6% 38.3%
Tom Valtin 36.3% 24.4% 39.3%
Eric Storey 20.8% 18.4% 60.8%
Vern Mathews 17.1% 23.5% 59.5%
Write-In 10.3% 2.6% 87.2%

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