ranked.vote // San Francisco Board of Supervisors, District 4
The San Francisco General Election was held on November 6, 2018. Gordon Mar was the winner out of 8 candidates after 4 elimination rounds.
Gordon Mar 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 | Gordon Mar | Jessica Ho | Trevor Mcneil | Arthur Tom | Lou Ann Bassan | Mike Murphy | Tuan Nguyen | Adam Kim | |
| Gordon Mar | 56.8% | 67.8% | 73.8% | 76.4% | 82.6% | 86.5% | 89.3% | ||
| Jessica Ho | 43.2% | 61.7% | 71.1% | 73.3% | 73.7% | 84.8% | 85.5% | ||
| Trevor Mcneil | 32.2% | 38.3% | 57.6% | 65.3% | 70.2% | 76.1% | 76.9% | ||
| Arthur Tom | 26.2% | 28.9% | 42.4% | 57.6% | 59.1% | 70.5% | 71.6% | ||
| Lou Ann Bassan | 23.6% | 26.7% | 34.7% | 42.4% | 52.4% | 64.3% | 65.9% | ||
| Mike Murphy | 17.4% | 26.3% | 29.8% | 40.9% | 47.6% | 61.4% | 68.7% | ||
| Tuan Nguyen | 13.5% | 15.2% | 23.9% | 29.5% | 35.7% | 38.6% | 51.8% | ||
| Adam Kim | 10.7% | 14.5% | 23.1% | 28.4% | 34.1% | 31.3% | 48.2% | ||
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 | Gordon Mar | Jessica Ho | Trevor Mcneil | Arthur Tom | Lou Ann Bassan | Mike Murphy | Tuan Nguyen | Adam Kim | Exhausted | |
| Gordon Mar | 22.1% | 16.9% | 8.7% | 3.8% | 11.2% | 4.3% | 2.8% | 30.1% | ||
| Jessica Ho | 24.7% | 16.2% | 14.3% | 6.8% | 3% | 5.9% | 5.7% | 23.4% | ||
| Trevor Mcneil | 26.6% | 20.1% | 8.3% | 8.5% | 16.6% | 3.4% | 2.5% | 14.1% | ||
| Arthur Tom | 19.1% | 19% | 14.4% | 19.5% | 5.2% | 4.7% | 3.2% | 14.9% | ||
| Lou Ann Bassan | 10.4% | 16.8% | 13.8% | 16.2% | 11.5% | 4% | 2.2% | 25% | ||
| Mike Murphy | 15.7% | 7.5% | 22.3% | 8.3% | 13.3% | 3.3% | 11.8% | 17.8% | ||
| Tuan Nguyen | 19.8% | 16.6% | 15.1% | 10.4% | 6.4% | 6.3% | 5.3% | 19.9% | ||
| Adam Kim | 14.4% | 21.7% | 11.1% | 14% | 7.2% | 9.9% | 8.7% | 13% | ||
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 (28,422 voters) | 23.6% | 15.3% | 61.1% | |
| Gordon Mar (10,314 voters) | 30.1% | 15.3% | 54.6% | |
| Jessica Ho (7,444 voters) | 23.4% | 14.8% | 61.8% | |
| Trevor Mcneil (3,490 voters) | 14.1% | 16.9% | 69.1% | |
| Arthur Tom (2,441 voters) | 14.9% | 18.8% | 66.3% | |
| Lou Ann Bassan (2,183 voters) | 25.0% | 14.2% | 60.7% | |
| Mike Murphy (1,182 voters) | 17.8% | 14.7% | 67.5% | |
| Tuan Nguyen (853 voters) | 19.9% | 10.7% | 69.4% | |
| Adam Kim (515 voters) | 13.0% | 9.9% | 77.1% | |
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 | Gordon Mar | Jessica Ho | Exhausted | |
| Trevor Mcneil | 34.7% | 25.9% | 39.4% | |
| Arthur Tom | 27% | 26.8% | 46.2% | |
| Lou Ann Bassan | 17.8% | 23.4% | 58.8% | |
| Mike Murphy | 27.2% | 13.5% | 59.3% | |
| Tuan Nguyen | 29% | 25.9% | 45.1% | |
| Adam Kim | 21.9% | 33.4% | 44.7% | |
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