ranked.vote // San Francisco Board of Supervisors, District 3
The San Francisco Consolidated General Election was held on November 4, 2008. David Chiu was the winner out of 9 candidates after 6 elimination rounds.
David Chiu 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 Chiu | Joseph Alioto, Jr. | Denise Mccarthy | Claudine Cheng | Lynn Jefferson | Mike Denunzio | Tony Gantner | Wilma Pang | Mark Quessey | Write-In | |
| David Chiu | 59.4% | 69% | 73.1% | 78.5% | 82.9% | 83.6% | 85.4% | 94.9% | 99.6% | ||
| Joseph Alioto, Jr. | 40.6% | 53.9% | 62.2% | 73.7% | 82.8% | 72% | 72.1% | 93.5% | 99.5% | ||
| Denise Mccarthy | 31% | 46.1% | 57.9% | 72.7% | 77.2% | 76.1% | 70% | 92.6% | 99.4% | ||
| Claudine Cheng | 26.9% | 37.8% | 42.1% | 61.8% | 71% | 61.6% | 71.1% | 88.7% | 99% | ||
| Lynn Jefferson | 21.5% | 26.3% | 27.3% | 38.2% | 60.9% | 50.5% | 51.9% | 84.4% | 98.6% | ||
| Mike Denunzio | 17.1% | 17.2% | 22.8% | 29% | 39.1% | 40.7% | 41.3% | 78.7% | 97.9% | ||
| Tony Gantner | 16.4% | 28% | 23.9% | 38.4% | 49.5% | 59.3% | 50.9% | 83.6% | 98.5% | ||
| Wilma Pang | 14.6% | 27.9% | 30% | 28.9% | 48.1% | 58.7% | 49.1% | 84.3% | 98.4% | ||
| Mark Quessey | 5.1% | 6.5% | 7.4% | 11.3% | 15.6% | 21.3% | 16.4% | 15.7% | 93.2% | ||
| Write-In | 0.4% | 0.5% | 0.6% | 1% | 1.4% | 2.1% | 1.5% | 1.6% | 6.8% | ||
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 Chiu | Joseph Alioto, Jr. | Denise Mccarthy | Claudine Cheng | Lynn Jefferson | Mike Denunzio | Tony Gantner | Wilma Pang | Mark Quessey | Write-In | Exhausted | |
| David Chiu | 13.4% | 31.8% | 17.6% | 4.1% | 1.4% | 5.4% | 6.5% | 0.8% | 0% | 18.9% | ||
| Joseph Alioto, Jr. | 18.9% | 15.7% | 15% | 7.9% | 10.5% | 6.1% | 3.4% | 1.3% | 0.2% | 21% | ||
| Denise Mccarthy | 24.4% | 18.9% | 6.9% | 19.2% | 3.4% | 9% | 3.4% | 1.5% | 0.1% | 13.1% | ||
| Claudine Cheng | 30.7% | 19.4% | 8.7% | 6.2% | 2.8% | 3% | 16.4% | 0.6% | 0% | 12.2% | ||
| Lynn Jefferson | 13.4% | 16.9% | 28.2% | 11.3% | 6.7% | 6.2% | 5.4% | 1.3% | 0.2% | 10.4% | ||
| Mike Denunzio | 6.3% | 29% | 7.1% | 7.9% | 10.7% | 9.5% | 3.4% | 3.9% | 0.2% | 21.9% | ||
| Tony Gantner | 23.3% | 20.5% | 18% | 7.9% | 7.7% | 5.9% | 2.3% | 1.3% | 13.1% | |||
| Wilma Pang | 20.8% | 9% | 12.4% | 25.8% | 8.9% | 2% | 3% | 5.6% | 12.4% | |||
| Mark Quessey | 16.2% | 11.8% | 14.2% | 2.5% | 10.3% | 10.3% | 4.4% | 15.7% | 0.5% | 14.2% | ||
| Write-In | 11.4% | 5.7% | 2.9% | 2.9% | 77.1% | |||||||
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 (27,198 voters) | 17.4% | 12.9% | 69.7% | |
| David Chiu (10,270 voters) | 18.9% | 13.8% | 67.3% | |
| Joseph Alioto, Jr. (6,285 voters) | 21.0% | 13.0% | 66.0% | |
| Denise Mccarthy (3,172 voters) | 13.1% | 12.3% | 74.6% | |
| Claudine Cheng (2,515 voters) | 12.2% | 12.4% | 75.5% | |
| Mike Denunzio (1,335 voters) | 21.9% | 13.2% | 64.9% | |
| Lynn Jefferson (1,235 voters) | 10.4% | 12.4% | 77.2% | |
| Tony Gantner (1,195 voters) | 13.1% | 13.1% | 73.9% | |
| Wilma Pang (952 voters) | 12.4% | 7.8% | 79.8% | |
| Mark Quessey (204 voters) | 14.2% | 8.8% | 77.0% | |
| Write-In (35 voters) | 77.1% | 5.7% | 17.1% | |
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 Chiu | Joseph Alioto, Jr. | Exhausted | |
| Denise Mccarthy | 32.9% | 27.3% | 39.7% | |
| Claudine Cheng | 41.9% | 28.1% | 30% | |
| Lynn Jefferson | 20.3% | 29.3% | 50.4% | |
| Mike Denunzio | 10% | 39.9% | 50.2% | |
| Tony Gantner | 33.1% | 30.2% | 36.7% | |
| Wilma Pang | 40% | 15.2% | 44.7% | |
| Mark Quessey | 24% | 16.7% | 59.3% | |
| Write-In | 11.4% | 2.9% | 85.7% | |
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