BOARD OF SUPERVISORS DISTRICT 11 (SanFrancisco; 2020-11-03)

🔗 2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11 (tags: { 2020-11 , from-bolson , actual , SanFrancisco-2020 , SF , SanFrancisco_CA , CA , 2020 })

Below is the ABIF from the "2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11" election (BOARD OF SUPERVISORS DISTRICT 11 (SanFrancisco; 2020-11-03))

ABIF submission area (show)

#------- metadata -------
{version: "0.1"}
{ballotcount: 34262}
#------ candlines ------
=[JOHN AVALOS]:[JOHN AVALOS]
=[AHSHA SAFAI]:[AHSHA SAFAI]
=[MARCELO COLUSSI]:[MARCELO COLUSSI]
#------- votelines ------
6940:[AHSHA SAFAI]>[JOHN AVALOS]>[MARCELO COLUSSI]
6305:[JOHN AVALOS]>[AHSHA SAFAI]>[MARCELO COLUSSI]
2897:[AHSHA SAFAI]>[MARCELO COLUSSI]>[JOHN AVALOS]
2788:
2660:[JOHN AVALOS]>[MARCELO COLUSSI]>[AHSHA SAFAI]
2470:[AHSHA SAFAI]
2250:[JOHN AVALOS]
1278:[AHSHA SAFAI]>[JOHN AVALOS]
1177:[JOHN AVALOS]>[AHSHA SAFAI]
1079:[MARCELO COLUSSI]>[AHSHA SAFAI]>[JOHN AVALOS]
951:[MARCELO COLUSSI]>[JOHN AVALOS]>[AHSHA SAFAI]
625:[AHSHA SAFAI]>[MARCELO COLUSSI]
467:[AHSHA SAFAI]
393:[MARCELO COLUSSI]
325:[JOHN AVALOS]
295:[JOHN AVALOS]>[MARCELO COLUSSI]
121:[JOHN AVALOS]>[AHSHA SAFAI]
120:[AHSHA SAFAI]>[JOHN AVALOS]
117:[AHSHA SAFAI]>[JOHN AVALOS]
103:[JOHN AVALOS]>[AHSHA SAFAI]
100:[MARCELO COLUSSI]
87:[MARCELO COLUSSI]>[AHSHA SAFAI]
72:[AHSHA SAFAI]
69:[MARCELO COLUSSI]>[JOHN AVALOS]
60:[JOHN AVALOS]>[MARCELO COLUSSI]
58:[MARCELO COLUSSI]>[AHSHA SAFAI]
50:[AHSHA SAFAI]>[MARCELO COLUSSI]
39:[JOHN AVALOS]>[MARCELO COLUSSI]
31:[JOHN AVALOS]
31:[AHSHA SAFAI]>[MARCELO COLUSSI]
30:[MARCELO COLUSSI]>[JOHN AVALOS]
28:[AHSHA SAFAI]=[JOHN AVALOS]>[MARCELO COLUSSI]
23:[JOHN AVALOS]=[AHSHA SAFAI]=[MARCELO COLUSSI]
20:[JOHN AVALOS]=[AHSHA SAFAI]
18:[JOHN AVALOS]>[AHSHA SAFAI]=[MARCELO COLUSSI]
17:[JOHN AVALOS]>[AHSHA SAFAI]=[MARCELO COLUSSI]
16:[JOHN AVALOS]>[AHSHA SAFAI]=[MARCELO COLUSSI]
16:[MARCELO COLUSSI]>[AHSHA SAFAI]
12:[MARCELO COLUSSI]>[JOHN AVALOS]=[AHSHA SAFAI]
11:[AHSHA SAFAI]>[JOHN AVALOS]=[MARCELO COLUSSI]
11:[MARCELO COLUSSI]
11:[JOHN AVALOS]=[AHSHA SAFAI]=[MARCELO COLUSSI]
10:[AHSHA SAFAI]=[JOHN AVALOS]
10:[AHSHA SAFAI]>[MARCELO COLUSSI]=[JOHN AVALOS]
9:[JOHN AVALOS]=[MARCELO COLUSSI]>[AHSHA SAFAI]
7:[JOHN AVALOS]=[AHSHA SAFAI]>[MARCELO COLUSSI]
6:[JOHN AVALOS]=[AHSHA SAFAI]
6:[AHSHA SAFAI]=[MARCELO COLUSSI]>[JOHN AVALOS]
5:[JOHN AVALOS]=[AHSHA SAFAI]>[MARCELO COLUSSI]
4:[MARCELO COLUSSI]>[JOHN AVALOS]=[AHSHA SAFAI]
4:[JOHN AVALOS]=[AHSHA SAFAI]=[MARCELO COLUSSI]
4:[AHSHA SAFAI]>[JOHN AVALOS]=[MARCELO COLUSSI]
4:[JOHN AVALOS]=[MARCELO COLUSSI]>[AHSHA SAFAI]
4:[AHSHA SAFAI]=[MARCELO COLUSSI]>[JOHN AVALOS]
4:[MARCELO COLUSSI]>[JOHN AVALOS]
3:[MARCELO COLUSSI]>[JOHN AVALOS]=[AHSHA SAFAI]
3:[AHSHA SAFAI]=[MARCELO COLUSSI]>[JOHN AVALOS]
3:[JOHN AVALOS]=[MARCELO COLUSSI]
2:[AHSHA SAFAI]=[MARCELO COLUSSI]
2:[JOHN AVALOS]=[MARCELO COLUSSI]>[AHSHA SAFAI]
1:[AHSHA SAFAI]=[MARCELO COLUSSI]

Method options

FPTP results?

IRV/RCV results?

IRV extra analysis?

Approval results?

STAR results?

pairwise (Condorcet/Copeland) results?

pairwise tournament diagram?

Ballot options Transform ballots (using ballot-type metadata)?

Voting methods: IRV • FPTP • approval • STAR • Pairwise • All methods

Results

🔗https://abif.electorama.com/id/2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11

Below are the results of the election represented above using various election methods with abiftool/abiflib. The detected ballot type from the ABIF above is "ranked". Some methods may transform these ballots for analysis; see method notices for details. Resubmit the ABIF with "Transform ballots" turned off to minimize the transformations.

Method	Winner
IRV/RCV	AHSHA SAFAI
FPTP	AHSHA SAFAI
Approval	AHSHA SAFAI
STAR	AHSHA SAFAI
Condorcet/Copeland	AHSHA SAFAI

OFF ON tabbed view

IRV/RCV results

2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11 IRV/RCV result permalink:
🔗https://abif.electorama.com/id/2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11/IRV#IRV

IRV/RCV Winner: AHSHA SAFAI with 16,332 votes (47.7%) in final round
Runner-up: JOHN AVALOS with 14,471 votes (42.2%) in final round
Exhausted ballots in final round: 3,459 (10.1%)
Number of rounds: 2
Ballots counted in final round: 30,803 (89.9%)
Majority of ballots: 17,132 (50.0%)
Total ballots: 34,262

Round 1	Round 2
Overview: Active ballots: 34,262 (100.0%) Exhausted ballots: 2,788 (8.1%) Overvotes: 148 (0.4%) Counted ballots: 31,326 (91.4%) Winning threshold: 15,664 (45.72%)	Overview: Active ballots: 34,114 (99.6%) Exhausted ballots: 3,292 (9.6%) Overvotes: 19 (0.1%) Counted ballots: 30,803 (89.9%) Winning threshold: 15,402 (44.95%)
AHSHA SAFAI: 15,092 (44.0%) →	IRV/RCV winner: AHSHA SAFAI: 16,332 (47.7%)✅ →
JOHN AVALOS: 13,417 (39.2%) →	JOHN AVALOS: 14,471 (42.2%) (🛑eliminated) →
MARCELO COLUSSI: 2,817 (8.2%) (🛑eliminated) →	~~MARCELO COLUSSI~~

Overvotes are ballots where multiple candidates are ranked at the same, highest-ranking position.

FPTP result

"FPTP" is "First-past-the-post", also known as "plurality" or "choose-one"
2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11 FPTP results permalink:
🔗https://abif.electorama.com/id/2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11/FPTP#FPTP

FPTP Winner: AHSHA SAFAI with 15,092 first-place votes (44.0%)
Runner-up: JOHN AVALOS with 13,417 first-place votes (39.2%)
Margin of victory: 1,675 votes (4.9 percentage points)
First-place votes
- AHSHA SAFAI: 15,092 votes (44.0 %)
- JOHN AVALOS: 13,417 votes (39.2 %)
- MARCELO COLUSSI: 2,817 votes (8.2 %)
Overvotes: 148 (0.4 %)
Blanks: 2,788 (8.1 %)
Total ballots: 34,262

Approval voting results

2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11 approval voting results permalink:
🔗https://abif.electorama.com/id/2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11/approval#approval

📝

Note — Approval counts estimated from 34,262 ranked ballots using favorite_viable_half method

Details

The 'favorite_viable_half' conversion algorithm: find the candidate with the most first preferences, and then determine the minimum number of figurative seats that would need to be open in order for the candidate to exceed the Hare quota with the given first-prefs. We use this to estimate how many candidates are likely to be viable candidates.

Using first-choice vote totals as a rough guide, approximately 3 candidates appear viable: AHSHA SAFAI, JOHN AVALOS, and MARCELO COLUSSI. The approximation then assumes each voter approves up to 2 of their top-ranked viable candidates (half of 3, rounded up). All candidates ranked at or above the lowest-ranked of each ballot's top viable candidates receive approval (considering up to 2 viable candidates per ballot).

See transformed ballots

Note: For Approval, these choose_many ballots are inferred from ranked ballots.

Conversion method: favorite_viable_half

#------- metadata -------
{ballotcount: 34262}
{version: "0.1"}
{ballotcount_abif_metadata: "34262"}
{is_ranking_to_rating: true}
#------ candlines ------
=[AHSHA SAFAI]:[AHSHA SAFAI]
=[JOHN AVALOS]:[JOHN AVALOS]
=[MARCELO COLUSSI]:[MARCELO COLUSSI]
#------- votelines ------
6940:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
6305:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
2897:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
2660:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
2470:[AHSHA SAFAI]/1
2250:[JOHN AVALOS]/1
1278:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
1177:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
1079:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
951:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
625:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
467:[AHSHA SAFAI]/1
393:[MARCELO COLUSSI]/1
325:[JOHN AVALOS]/1
295:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
121:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
120:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
117:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
103:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
100:[MARCELO COLUSSI]/1
87:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
72:[AHSHA SAFAI]/1
69:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
60:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
58:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
50:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
39:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
31:[JOHN AVALOS]/1
31:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
30:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
18:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
17:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
16:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
16:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
12:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
11:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
11:[MARCELO COLUSSI]/1
10:[AHSHA SAFAI]/1=[MARCELO COLUSSI]/1
4:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
4:[AHSHA SAFAI]/1=[JOHN AVALOS]/1
4:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1
3:[JOHN AVALOS]/1=[MARCELO COLUSSI]/1

Approval Winner: AHSHA SAFAI
Approval Results:
- AHSHA SAFAI — 24,089 approvals (70.31% of ballots) (✅ winner)
- JOHN AVALOS — 22,960 approvals (67.01% of ballots)
- MARCELO COLUSSI — 9,484 approvals (27.68% of ballots)
Total: 34,262 ballots (56,533 total approvals)

STAR results

2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11 STAR results permalink:
🔗https://abif.electorama.com/id/2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11/STAR#STAR

📝

Note — STAR ratings estimated from ranked ballots using Borda scoring method

Details

The ranked ballots have been converted to STAR ratings using Borda scoring: each candidate receives points equal to (number_of_candidates - their_rank). In this election, we have 3 candidates, so the 1st choice gets 2 points, the 2nd choice gets 1 points, etc. These Borda scores are then used as STAR ratings for tabulation by STAR.

STAR winner: AHSHA SAFAI
Finalists: AHSHA SAFAI vs JOHN AVALOS
Runoff result:
- AHSHA SAFAI: 16,348 votes (47.7%)
- JOHN AVALOS: 14,489 votes (42.3%)
- No preference: 3425 voters (10.0%)
Total stars allocated: 88,690
Total ballots: 34,262

★★★★★★

★★★★★

★★★★★★

★★★★★

★★★★★★

★★★★★

★★★★★★

★★★★★

★★★★★★

(one star above is approximately 1,774 stars allocated by voters)

First round:
- ★#0: AHSHA SAFAI received 39,475 stars (44.5%) from 24,253 voters (70.8%)
- ★#1: JOHN AVALOS received 36,664 stars (41.3%) from 23,115 voters (67.5%)
- ★#2: MARCELO COLUSSI received 12,551 stars (14.2%) from 9,662 voters (28.2%)
Finalists:
- ★AHSHA SAFAI (✅ winner) preferred by 16,348 of 34,262 voters
- ★JOHN AVALOS preferred by 14,489 of 34,262 voters
- ★No preference between the finalists: 3425

NOTE: Since ratings or stars are not present in the provided ballots, allocated stars are estimated using a Borda-like formula.

Condorcet/Copeland results

2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11 Condorcet/Copeland results permalink:
🔗https://abif.electorama.com/id/2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11/pairwise#pairwise

Winner: AHSHA SAFAI
Runner-up: JOHN AVALOS (beats all other candidates except AHSHA SAFAI)
Smallest margin: AHSHA SAFAI over JOHN AVALOS (16,348-14,489; margin: 1,859)
Largest margin: AHSHA SAFAI over MARCELO COLUSSI (22,874-5,889; margin: 16,985)
Pairwise ties: none
Total ballots: 34,262

Win-loss-tie (Condorcet/Copeland) table

2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11 w-l-t table permalink:
🔗https://abif.electorama.com/id/2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11/pairwise#wlt

BOARD OF SUPERVISORS DISTRICT 11 (SanFrancisco; 2020-11-03) pairwise matchups
AHSHA SAFAI (2-0-0)	AHSHA SAFAI 2 victories ⇣
JOHN AVALOS (1-1-0)	AHSHA SAFAI: 16,348(47.7%) JOHN AVALOS: 14,489(42.3%) (No preference: 3,425; 10.0%)	JOHN AVALOS ⇽ 1 loss / 1 victory^† ⇣
MARCELO COLUSSI (0-2-0)	AHSHA SAFAI: 22,874(66.8%) MARCELO COLUSSI: 5,889(17.2%) (No preference: 5,499; 16.0%)	JOHN AVALOS: 21,948(64.1%) MARCELO COLUSSI: 6,436(18.8%) (No preference: 5,878; 17.2%)

Pairwise tournament (Copeland ordered)

2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11 pairwise diagram permalink:
🔗https://abif.electorama.com/id/2020-11-03_SanFrancisco-BOARD_OF_SUPERVISORS_DISTRICT_11/pairwise#dot

Voting methods: IRV • FPTP • approval • STAR • Pairwise • All methods

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