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 candidates after 2 elimination rounds.
David Campos was also the Condorcet winner.
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.
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% | ||||||
Ranking Distribution
This shows how many candidates voters ranked, both overall and broken down by each candidate's first-choice supporters. This reveals whether some candidates attracted voters who ranked multiple candidates versus those who ranked fewer candidates.
| Number of Candidates Ranked | ||||
Candidate | 1 | 2 | 3 | |
| All Candidates (26,486 voters) | 15.4% | 10.8% | 73.8% | |
| David Campos (9,468 voters) | 13.8% | 11.2% | 74.9% | |
| Mark Sanchez (7,648 voters) | 14.1% | 10.5% | 75.4% | |
| Eric Quezada (5,352 voters) | 16.8% | 10.1% | 73.2% | |
| Eva Royale (1,842 voters) | 19.3% | 9.5% | 71.2% | |
| Tom Valtin (862 voters) | 14.7% | 12.8% | 72.5% | |
| Eric Storey (806 voters) | 25.7% | 14.3% | 60.0% | |
| Vern Mathews (469 voters) | 16.2% | 10.0% | 73.8% | |
| Write-In (39 voters) | 79.5% | 5.1% | 15.4% | |
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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